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How colonies are counted

How colonies are counted, Total:452 items.

In the international standard classification, How colonies are counted involves: Microbiology, Milk and milk products, Meat, meat products and other animal produce, Wastes, Biology. Botany. Zoology, General methods of tests and analysis for food products, Processes in the food industry, Water quality, Packaging materials and accessories, Fertilizers, Paper and board, Bottles. Pots. Jars, Cork and cork products, Animal feeding stuffs.

British Standards Institution (BSI), How colonies are counted

BS ISO 6730:2005 Milk - Enumeration of colony-forming units of psychrotrophic microorganisms - Colony-count technique at 6,5 °C
BS ISO 11866-2:2006 Milk and milk products - Enumeration of presumptive Escherichia coli - Colony-count technique at 44 C using membranes
BS ISO 6611:2004 Milk and milk products - Enumeration of colony-forming units of yeasts and/or moulds - Colony-count technique at 25 °C
BS ISO 4832:2006 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of coliforms - Colony-count technique
BS ISO 7889:2003 Yogurt. Enumeration of characteristic microorganisms. Colony-count technique at 37 C
BS ISO 20128:2007 Milk products - Enumeration of presumptive Lactobacillus acidophilus on a selective medium - Colony-count technique at 37 °C
BS 7857-2:1996 Methods for microbiological examination of meat and meat products - Enumeration of lactic acid bacteria - Colony-count technique at 30 °C
BS ISO 29981:2010 Milk products - Enumeration of presumptive bifidobacteria - Colony count technique at 37 °C
BS EN ISO 21528-2:2017 Microbiology of the food chain. Horizontal method for the detection and enumeration of Enterobacteriaceae - Colony-count technique
BS EN ISO 13366-2:2006 Milk - Enumeration of somatic cells - Guidance on the operation of fluoro-opto-electronic counters
BS 7857-3:1997 Methods for microbiological examination of meat and meat products - Enumeration of Brochothrix thermosphacta - Colony-count technique
BS ISO 11866-2:2005 Milk and milk products. Enumeration of presumptive Escherichia coli - Colony-count technique at 44°C using membranes
BS 5763-2:1991 Methods for microbiological examination of food and animal feeding stuffs - Enumeration of coliforms - Colony count technique
BS ISO 21528-2:2004 Microbiology of food and animal feeding stuffs - Horizontal methods for the detection and enumeration of Enterobacteriaceae - Colony-count method
BS ISO 17792:2006 Milk, milk products and mesophilic starter cultures. Enumeration of citrate-fermenting lactic acid bacteria. Colony-count technique at 25°C
BS DD ISO/TS 10272-2:2006 Microbiology of food and animal feeding stuffs - Horizontal method for detection and enumeration of Campylobacter spp - Colony-count technique
BS ISO 17792:2008 Milk, milk products and mesophilic starter cultures - Enumeration of citrate-fermenting lactic acid bacteria - Colony-count technique at 25 °C
DD ISO/TS 10272-2:2006 Microbiology of food and animal feeding stuffs. Horizontal method for detection and enumeration of Campylobacter spp. - Colony-count technique
BS EN ISO 15213-1:2023 Tracked Changes. Microbiology of the food chain. Horizontal method for the detection and enumeration of Clostridium spp.. Enumeration of sulfite-reducing Clostridium spp. by colony-count technique
BS EN ISO 10272-2:2017 Microbiology of the food chain. Horizontal method for detection and enumeration of Campylobacter spp. Colony-count technique
BS ISO 15214:1998 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of mesophilic lactic acid bacteria - Colony-count technique at 30 °C
BS ISO 20128:2006 Milk products. Enumeration of presumptive Lactobacillus acidophilus on a selective medium. Colony-count technique at 37°C
BS 5763-13:1998 Methods for microbiological examination of food and animal feeding stuffs - Enumeration of Escherichia coli - Colony-count technique at 44 C using membranes
BS EN ISO 7932:2004 Microbiology of food and animal feeding stuffs - Horizontal method for th e enumeration of presumptive Bacillus cereus - Colony-count technique at 30 C
21/30362561 DC BS EN ISO 15213-1. Microbiology of the food chain. Horizontal method for the detection and enumeration of Clostridium spp.. Part 1. Enumeration of sulfite-reducing Clostridium spp. by colony-count technique
BS EN ISO 7937:2004 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of Clostridium perfringens - Colony-count technique
BS ISO 13722:2017 Microbiology of the food chain. Enumeration of $iB$ir$io$ic$ih$io$it$ih$ir$ii$ix spp. Colony-count technique
BS EN 13401:1999 Microbiology of Food and Animal Feeding Stuffs - Horizontal Method for Enumeration of Clostridium Perfringens - Colony - Count Technique ISO 7937:1997 Modified
BS EN ISO 7932:2004+A1:2020 Microbiology of food and animal feeding stuffs. Horizontal method for the enumeration of presumptive Bacillus cereus. Colony-count technique at 30 °C
21/30389677 DC BS EN ISO 10272-2 AMD1. Microbiology of the food chain. Horizontal method for detection and enumeration of Campylobacter spp.. Part 2. Colony-count technique
BS EN ISO 6222:1999 Water quality. Enumeration of culturable micro-organisms. Colony count by inoculation in a nutrient agar culture medium
BS ISO 10718:2002 Cork stoppers - Enumeration of colony-forming units of yeasts, moulds and bacteria capable of growth in an alcoholic medium
22/30362586 DC BS EN ISO 15213-2. Microbiology of the food chain. Horizontal method for the detection and enumeration of Clostridium spp. - Part 2. Enumeration of Clostridium perfringens by colony-count technique
BS ISO 4831:2006 Microbiology of food and animal feeding stuffs - Horizontal method for the detection and enumeration of coliforms - Most probable number technique
BS ISO 21527-1:2008 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of yeasts and moulds - Colony count technique in products with water activity greater than 0,95
BS ISO 8552:2004 Milk - Estimation of psychrotrophic microorganisms - Colony-count technique at 21 °C (rapid method)
BS ISO 21527-2:2008 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of yeasts and moulds - Colony count technique in products with water activity less than or equal to 0,95
BS 5763-5:1981 Methods for microbiological examination of food and animal feeding stuffs - Enumeration of micro-organisms - Colony count at 30 °C (surface plate technique)
BS EN ISO 4833-1:2013+A1:2022 Microbiology of the food chain. Horizontal method for the enumeration of microorganisms - Colony count at 30 °C by the pour plate technique
BS EN ISO 4833-2:2013+A1:2022 Microbiology of the food chain. Horizontal method for the enumeration of microorganisms - Colony count at 30 °C by the surface plating technique
BS EN ISO 10272-2:2017+A1:2023 Microbiology of the food chain. Horizontal method for detection and enumeration of Campylobacter spp - Colony-count technique. Inclusion of methods for molecular confirmation and identification of thermotolerant Campylobacter spp and changes in…
BS 4285 SubSec.3.10.1:1989 Microbiological examination for dairy purposes. Methods for detection and/or enumeration of specific groups of microorganisms. Staphylococcus aureus. Enumeration using the colony count technique
BS ISO 14461-1:2005 Milk and milk products - Quality control in microbiological laboratories - Analyst performance assessment for colony counts
BS ISO 10718:2015 Cork stoppers. Characterization of a low-in-germs stopper, through the enumeration of colony-forming units of yeasts moulds and bacteria, capable of both being extracted and growing in alcoholic medium
BS 4285 Sec.2.1:1984 Microbiological examination for dairy purposes. Methods of general application for enumeration of microorganisms. Enumeration of microorganisms by poured plate technique for colony count
BS 4285 Sec.2.3:1984 Microbiological examination for dairy purposes. Methods of general application for enumeration of microorganisms. Enumeration of microorganisms by surface plate technique for colony count
BS EN ISO 4833-1:2013 Microbiology of the food chain. Horizontal method for the enumeration of microorganisms. Colony count at 30 degrees C by the pour plate technique
18/30382876 DC BS ENISO 7932:2004 AMD 1. Microbiology of food and animal feeding stuffs. Horizontal method for the enumeration of presumptive Bacillus cereus. Colony-count technique at 30 degrees C. Inclusion of optional tests
BS EN ISO 4833-2:2013 Microbiology of food and animal feed. Horizontal method for the enumeration of microorganisms. Colony count at 30 degrees C by the surface plating technique
BS ISO 16649-1:2001 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of -glucuronidase-positive Escherichia coli - Colony-count technique at 44 C using membranes and 5-bromo-4- chloro-3-indolyl--D-glucuronide
BS ISO 16649-2:2001 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of -glucuronidase-positive Escherichia coli - Colony-count technique at 44 C using 5-bromo-4-chloro-3-indolyl--D-glucuronide

International Organization for Standardization (ISO), How colonies are counted

ISO 4832:1991 Microbiology; general guidance for the enumeration of coliforms; colony count technique
ISO 6730:1992 Milk; enumeration of colony-forming units of psychotrophic micro-organisms; colony-count technique at 6,5 C
ISO 6610:1992 Milk and milk products; enumeration of colony-forming units of micro-organisms; colony-count technique at 30 °C
ISO 6611:2004 Milk and milk products - Enumeration of colony-forming units of yeasts and/or moulds - Colony-count technique at 25 °C
ISO 6611:2004|IDF 94:2004 Milk and milk products — Enumeration of colony-forming units of yeasts and/or moulds — Colony-count technique at 25 degrees C
ISO 6611:1992 Milk and milk products; enumeration of colony-forming units of yeasts and/or moulds; colony-count technique at 25 C
ISO 5541-1:1986 Milk and milk products; Enumeration of coliforms; Part 1 : Colony count technique at 30 degrees C
ISO 13681:1995 Meat and meat products - Enumeration of yeasts and moulds - Colony-count technique
ISO 6730:2005 Milk - Enumeration of colony-forming units of psychrotrophic microorganisms - Colony-count technique at 6,5 °C
ISO 6730:2005 | IDF 101:2005 Milk — Enumeration of colony-forming units of psychrotrophic microorganisms — Colony-count technique at 6,5 degrees C
ISO 6730:2005|IDF 101:2005 Enumeration of colony-forming units of psychrophilic microorganisms in milk Colony counting technique at 6.5°C
ISO 6611:2004 | IDF 94:2004 Milk and milk products — Enumeration of colony-forming units of yeasts and/or moulds — Colony-count technique at 25 degrees C
ISO 4832:2006 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of coliforms - Colony-count technique
ISO/CD 7889 | IDF 117 Yogurt — Enumeration of characteristic microorganisms — Colony-count technique
ISO 13721:1995 Meat and meat products - Enumeration of lactic acid bacteria - Colony-count technique at 30 C
ISO 13722:2017 Microbiology of the food chain - Enumeration of Brochothrix spp. - Colony-count technique
ISO 13722:1996 Meat and meat products - Enumeration of Brochothrix thermosphacta - Colony-count technique
ISO 29981:2010 | IDF 220:2010 Milk products — Enumeration of presumptive bifidobacteria — Colony count technique at 37 degrees C
ISO 11866-3:1997 Milk and milk products - Enumeration of presumptive Escherichia coli - Part 3: Colony-count technique at 44 °C using membranes
ISO 7954:1987 Microbiology; General guidance for enumeration of yeasts and moulds; Colony count technique at 25 degrees C
ISO 7937:1985 Microbiology; General guidance for enumeration of Clostridium perfringens; Colony count technique
ISO 11866-2:2005|IDF 170-2:2005 Milk and milk products — Enumeration of presumptive Escherichia coli — Part 2: Colony-count technique at 44 degrees C using membranes
ISO 11866-2:2005 Milk and milk products - Enumeration of presumptive Escherichia coli - Part 2: Colony-count technique at 44 °C using membranes
ISO 7889:2003 Yogurt - Enumeration of characteristic microorganisms - Colony-count technique at 37 °C
ISO 7889:2003|IDF 117:2003 Yogurt — Enumeration of characteristic microorganisms — Colony-count technique at 37 degrees C
ISO 4832:1978 Microbiology — General guidance for enumeration of coliforms — Colony count technique at 30 degrees C
ISO 7932:1993 Microbiology; general guidance for the enumeration of Bacillus cereus; colony-count technique at 30 °C
ISO 7889:2003 | IDF 117:2003 Yogurt — Enumeration of characteristic microorganisms — Colony-count technique at 37 degrees C
ISO 20128:2006 Milk products - Enumeration of presumptive Lactobacillus acidophilus on a selective medium - Colony-count technique at 37 °C
ISO 20128:2006|IDF 192:2006 Colony counting technology of putative Lactobacillus acidophilus colonies in dairy products at 37°C on selective media
ISO 6391:1988 Meat and meat products — Enumeration of Escherichia coli — Colony count technique at 44 degrees C using membranes
ISO 5552:1997 Meat and meat products - Detection and enumeration of Enterobacteriaceae without resuscitation - MPN technique and colony-count technique
ISO 29981:2010 Milk products - Enumeration of presumptive bifidobacteria - Colony count technique at 37 °C
ISO 29981:2010|IDF 220:2010 Calculation of putative bifidobacteria in dairy products by colony counting method at 37°C
ISO 7932:1987 Microbiology — General guidance for enumeration of Bacillus cereus — Colony count technique at 30 degrees C
ISO 13721:1995/Cor 1:1996 Meat and meat products - Enumeration of lactic acid bacteria - Colony-count technique at 30 C; Technical Corrigendum 1
ISO 6888:1983 Microbiology; General guidance for enumeration of Staphylococcus aureus; Colony count technique
ISO 7402:1993 Microbiology; general guidance for the enumeration of Enterobacteriaceae without resuscitation; MPN technique and colony-count technique
ISO 6391:1997 Meat and meat products - Enumeration of Escherichia coli - Colony-count technique at 44 °C using membranes
ISO 4831:1991 Microbiology; general guidance for the enumeration of coliforms; most probable number technique
ISO 4833:1991 Microbiology; general guidance for the enumeration of micro-organisms; colony count technique at 30 °C
ISO 2293:1988 Meat and meat products — Enumeration of micro-organisms — Colony count technique at 30 degrees C (Reference method)
ISO 7251:1993 Microbiology; general guidance for enumeration of presumptive Escherichia coli; most probable number technique
ISO 21528-2:2017 Microbiology of the food chain - Horizontal method for the detection and enumeration of Enterobacteriaceae - Part 2: Colony-count technique
ISO 4833:1978 Microbiology — General guidance for enumeration of micro-organisms — Colony count technique at 30 degrees C
ISO 7937:2004 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of Clostridium perfringens - Colony-count technique
ISO 7402:1985 Microbiology — General guidance for the enumeration of enterobacteriaceae without resuscitation — MPN technique and colony count technique
ISO 11866-2:2005 | IDF 170-2:2005 Milk and milk products — Enumeration of presumptive Escherichia coli — Part 2: Colony-count technique at 44 degrees C using membranes
ISO 17792:2006 | IDF 180:2006 Milk, milk products and mesophilic starter cultures — Enumeration of citrate-fermenting lactic acid bacteria — Colony-count technique at 25 degrees C
ISO 20128:2006 | IDF 192:2006 Milk products — Enumeration of presumptive Lactobacillus acidophilus on a selective medium — Colony-count technique at 37 degrees C
ISO 15214:1998 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of mesophilic lactic acid bacteria - Colony-count technique at 30 °C
ISO 10272-2:2017 Microbiology of the food chain - Horizontal method for detection and enumeration of Campylobacter spp. - Part 2: Colony-count technique
ISO 13366-2:2006 Milk - Enumeration of somatic cells - Part 2: Guidance on the operation of fluoro-opto-electronic counters
ISO 13366-2:2008 Milk - Enumeration of somatic cells - Part 2: Guidance on the operation of fluoro-opto-electronic counters
ISO 13366-2:2006|IDF 148-2:2006 Colony Counting of Bovine Milk Somatic Cells Part 2: Working Guide for Fluorescent Photoelectric Counters
ISO 5541-2:1986 Milk and milk products; Enumeration of coliforms; Part 2 : Most probable number technique at 30 degrees C
ISO 8552:2004 | IDF 132:2004 Milk — Estimation of psychrotrophic microorganisms — Colony-count technique at 21 degrees C (Rapid method)
ISO 7932:2004 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of presumptive Bacillus cereus - Colony-count technique at 30 °C
ISO/FDIS 15213-2:2012 Microbiology of the food chain — Horizontal method for the detection and enumeration of Clostridium spp. — Part 2: Enumeration of Clostridium perfringens by colony-count technique
ISO/DIS 15213-2 Microbiology of the food chain — Horizontal method for the detection and enumeration of Clostridium spp. — Part 2: Enumeration of Clostridium perfringens by colony-count technique
ISO 11866-1:1997 Milk and milk products - Enumeration of presumptive Escherichia coli - Part 1: Most probable number technique
ISO 21528-2:2004 Microbiology of food and animal feeding stuffs - Horizontal methods for the detection and enumeration of Enterobacteriaceae - Part 2: Colony-count method
ISO 13559:2002 | IDF 153:2002 Butter, fermented milks and fresh cheese — Enumeration of contaminating microorganisms — Colony-count technique at 30 degrees C
ISO 15213-1:2023 Microbiology of the food chain — Horizontal method for the detection and enumeration of Clostridium spp. — Part 1: Enumeration of sulfite-reducing Clostridium spp. by colony-count technique
ISO 10718:1993 Cork stoppers — Enumeration of colony-forming units of yeasts, moulds and bacteria capable of growth in an alcoholic medium
ISO 8552:2004 Milk — Estimation of psychrotrophic microorganisms — Colony-count technique at 21 degrees C (Rapid method)
ISO 13559:2002 Butter, fermented milks and fresh cheese - Enumeration of contaminating microorganisms - Colony-count technique at 30 °C
ISO 6222:1988 Water quality — Enumeration of viable micro-organisms — Colony count by inoculation in or on a nutrient agar culture medium
ISO 13559:2002|IDF 153:2002 Enumeration of contaminating microorganisms in butter, fermented milk products and fresh cheese by colony counting method at 30°C
ISO 10272-2:2017/Amd 1:2023 Microbiology of the food chain — Horizontal method for detection and enumeration of Campylobacter spp. — Part 2: Colony-count technique — Amendment 1: Inclusion of methods for molecular confirmation and identification of thermotolerant Campylobacter spp.
ISO 13366-1:2008 Milk - Enumeration of somatic cells - Part 1: Microscopic method (Reference method)
ISO 13366-1:2008|IDF 148-1:2008 Colony counting of somatic cells in milk Part 1: Microscopy (reference method)
ISO/TS 10272-2:2006 Microbiology of food and animal feeding stuffs - Horizontal method for detection and enumeration of Campylobacter spp. - Part 2: Colony-count technique
ISO 4833:2003 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of microorganisms - Colony-count technique at 30 °C
ISO/CD 13647 Water quality — Enumeration of culturable microorganisms — Colony count by spread plate inoculation on R2A medium
ISO 4831:2006 Microbiology of food and animal feeding stuffs - Horizontal method for the detection and enumeration of coliforms - Most probable number technique
ISO 17792:2006 Milk, milk products and mesophilic starter cultures - Enumeration of citrate-fermenting lactic acid bacteria - Colony-count technique at 25 °C
ISO 10718:2002 Cork stoppers - Enumeration of colony-forming units of yeasts, moulds and bacteria capable of growth in an alcoholic medium
ISO 17792:2006|IDF 180:2006 Examples of milk, milk products and fermentation culture media: 25℃ colony counting technology of fermented citrate lactic acid bacteria
ISO 21527-1:2008 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of yeasts and moulds - Part 1: Colony count technique in products with water activity greater than 0,95
ISO 8552:2004|IDF 132:2004 Estimation of psychrotrophic microorganisms in milk using colony counting technique (rapid method)
ISO 7932:2004/Amd 1:2020 Microbiology of food and animal feeding stuffs — Horizontal method for the enumeration of presumptive Bacillus cereus — Colony-count technique at 30 degrees C — Amendment 1: Inclusion of optional test
ISO 13366-1:2008/cor 1:2009 Milk — Enumeration of somatic cells — Part 1: Microscopic method (Reference method) TECHNICAL CORRIGENDUM 1
ISO 10718:2015 Cork stoppers - Characterization of a low-in-germs stopper, through the enumeration of colony-forming units of yeasts, moulds and bacteria, capable of both being extracted and growing in alcoholic medium
ISO 9998:1991 Water quality; practices for evaluating and controlling microbiological colony count media used in water quality tests
ISO 14461-1:2005 Milk and milk products - Quality control in microbiological laboratories - Part 1: Analyst performance assessment for colony counts
ISO 14461-1:2005 | IDF 169-1:2005 Milk and milk products — Quality control in microbiological laboratories — Part 1: Analyst performance assessment for colony counts
ISO 14461-1:2005|IDF 169-1:2005 Microbiological quality control of milk and milk products in laboratories - Part 1: Performance assessment of assays for colony counting
ISO 11866-1:2005 Milk and milk products - Enumeration of presumptive Escherichia coli - Part 1: Most probable number technique using 4-methylumbelliferyl--D-glucuronide (MUG)
ISO 11866-2:1997 Milk and milk products - Enumeration of presumptive Escherichia coli - Part 2: Most probable number technique using 4-methylumbelliferyl--D-glucuronide (MUG)
ISO 11866-1:2005|IDF 170-1:2005 Colony enumeration of putative Escherichia coli in milk and milk products Part 1: Maximum likelihood technique using 4-methylgalacto-(β)-D-glucuronide (MUG) (test)

Association Francaise de Normalisation, How colonies are counted

NF V08-015:1991 Microbiology. General guidance for the enumeration of coliforms. Colony count technique.
NF V04-507:1996 Meat and meat products. Enumeration of yeasts and moulds. Colony-count technique.
NF V08-015*NF ISO 4832:2006 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of coliforms - Colony count technique
NF V04-016:1985 Milk. Enumeration of micro-organisms. Colony count technique at 30 degrees C.
NF ISO 4832:2006 Microbiologie des aliments - Méthode horizontale pour le dénombrement des coliformes - Méthode par comptage des colonies
NF V08-022:1988 Microbiology. General guidance for enumeration of yeasts and moulds. Colony count technique at 25 degrees C.
NF V59-101:1982 EDIBLE GELATINE. ENUMERATION OF MICRO-ORGANISMS. COLONY COUNT TECHNIQUE AT 30 DEGREES C.
NF EN ISO 7937:2005 Microbiologie des aliments - Méthode horizontale pour le dénombrement de Clostridium perfringens - Technique par comptage des colonies
NF V04-019-2*NF ISO 11866-2:2006 Milk and milk products - Enumeration of presumptive Escherichia coli - Part 2 : colony-count technique at 44 oC using membranes
NF V08-014:1984 MICROBIOLOGY OF FOOD PRODUCTS. GENERAL GUIDANCE FOR ENUMERATION OF STAPHYLOCOCCUS AUREUS. COLONY COUNT TECHNIQUE.
NF V04-506:1992 Meat and meat products. Enumeration of microorganisms. Colony count technique at 25 degrees celsius.
NF V08-019:1985 Microbiology of food products. General guidance for the enumeration of {Clostridium} perfringens. Colony count technique.
NF V08-021:1993 Microbiology. General guidance for the enumeration of {Enterobacteriaceae} without resuscitation. Mpn technique and colony count technique.
NF ISO 11866-2:2006 Lait et produits laitiers - Dénombrement d'Escherichia coli présumés - Partie 2 : technique par comptage des colonies obtenues sur membranes à 44 oC
NF V08-039-2*NF EN ISO 21528-2:2017 Microbiology of the food chain - Horizontal method for the detection and enumeration of Enterobacteriaceae - Part 2 : Colony-count technique
NF V08-011:1991 Microbiology. General guidance for the enumeration of micro-organisms. Colony count technique at 30 degrees C.
XP U45-013*XP CEN/TS 17719:2022 Plant biostimulants - Determination of the anaerobic plate count
NF EN ISO 7932:2005 Microbiologie des aliments - Méthode horizontale pour le dénombrement de Bacillus cereus présomptifs - Technique par comptage des colonies à 30 oC
NF V08-019*NF EN ISO 7937:2005 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of Clostridium perfringens - Colony-count technique
NF EN ISO 21528-2:2017 Microbiologie de la chaîne alimentaire - Méthode horizontale pour la recherche et le dénombrement des Enterobacteriaceae - Partie 2 : technique par comptage des colonies
NF ISO 15214:1998 Microbiologie des aliments - Méthode horizontale pour le dénombrement des bactéries lactiques mésophiles - Technique par comptage des colonies à 30 degrés Celsius.
NF V08-026-2*NF EN ISO 10272-2:2017 Microbiology of the food chain - Horizontal method for detection and enumeration of Campylobacter spp. - Part 2 : colony-count technique
NF EN ISO 10272-2:2017 Microbiologie de la chaîne alimentaire - Méthode horizontale pour la recherche et le dénombrement de Campylobacter spp. - Partie 2 : technique par comptage des colonies
NF V04-505:2011 Meat and meat products - Microbiological analysis - Enumeration of brochothrix thermosphacta.
NF V04-505:1989 Meat and meat products. Microbiological analysis. Enumeration of brochothrix {thermosphacta}.
NF V04-017:1991 Milk and milk products. Microbiological enumeration by colony count on petri dishes. Method for verification of automatic counters.
NF EN ISO 15213-1:2023 Microbiologie de la chaîne alimentaire - Méthode horizontale pour la recherche et le dénombrement de Clostridium spp. - Partie 1 : dénombrement des bactéries Clostridium spp. sulfito-réductices par la technique de comptage des colonies
NF V08-057-1:2004 Microbiology of food and animal feeding stuffs - Routine method for enumeration of coagulase positive Staphylococcus by colony-count technique at 37 oC - Part 1 : technique with confirmation of the colonies.
NF V08-057-2:2004 Microbiology of food and animal feeding stuffs - Routine method for enumeration of coagulase positive Staphylococcus by colony-count technique at 37 oC - Part 2 : technique without colony confirmation.
NF V08-059:2002 Microbiology of food animal feeding stuffs - Enumeration of yeasts and moulds by colony-count technique at 25 oC - Routine method.
NF V08-023*NF EN ISO 7932:2005 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of presumptive Bacillus cereus - Colony-count technique at 30 oC.
NF V04-040-2*NF EN ISO 13366-2:2007 Milk - Enumeration of somatic cells - Part 2 : guidance on the operation of fluoro-opto-electronic counters
NF V08-039-2:2004 Microbiology of food and animal feeding stuffs - Horizontal methods for the detection and enumeration of Enterobacteriaceae - Part 2 : colony-count method.
NF V08-050:2009 Microbiology of food and animal feeding stuffs - Enumeration of presumptive coliforms by colony-count technique at 30 oC.
NF V08-602:2011 Microbiology of food and animal feeding stuffs - Enumeration of spores from food products before appertization process by colony counts.
NF B57-107*NF ISO 10718:2016 Cork stoppers - Characterization of a low-in-germs stopper, through the enumeration of colony-forming units of yeasts, moulds and bacteria, capable of both, being extracted and growth in an alcoholic medium
NF V59-106:1982 Edible gelatine. Enumeration of sulfito-reducing anaerobic micro-organism spores. Anaerobic colony count technique at 37 degrees C.
NF EN ISO 6222:1999 Qualité de l'eau - Dénombrement des micro-organismes revivifiables - Comptage des colonies par ensemencement dans un milieu de culture nutritif gélosé
NF EN ISO 7932/A1:2020 Microbiologie des aliments - Méthode horizontale pour le dénombrement de Bacillus cereus présomptifs - Technique par comptage des colonies à 30 degrés C - Amendement 1 : ajout de tests optionnels
NF ISO 21527-1:2008 Microbiologie des aliments - Méthode horizontale pour le dénombrement des levures et moisissures - Partie 1 : technique par comptage des colonies dans les produits à activité d'eau supérieure à 0,95
NF ISO 21527-2:2008 Microbiologie des aliments - Méthode horizontale pour le dénombrement des levures et moisissures - Partie 2 : technique par comptage des colonies dans les produits à activité d'eau inférieure ou égale à 0,95
NF V08-040-1*NF ISO 21527-1:2008 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of yeasts and moulds - Part 1 : colony count technique in products with water activity greater than 0,95.
XP V08-034:2010 Microbioly of food and animal feeding stuffs - Enumeration of microorganisms by colony-count technique obtained at 30 oC spirale method
NF V08-060:2009 Microbiology of food and animal feeding stuffs - Enumeration of thermotolerant coliforms by colony-count technique at 44 oC.
NF V08-023/A1*NF EN ISO 7932/A1:2020 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of presumptive Bacillus cereus - Colony-count technique at 30 degrees C - Amendment 1 : inclusion of optional tests
NF EN ISO 10272-2/A1:2023 Microbiologie de la chaîne alimentaire - Méthode horizontale pour la recherche et le dénombrement de Campylobacter spp. - Partie 2 : technique par comptage des colonies - Amendment 1 : ajout de méthodes pour la confirmation et l'identification mol...
NF V08-054:2009 Microbiology of food and animal feeding stuffs - Enumeration of presumptive enterobacteria by colony count technique at 30 oC or 37 oC.
NF V08-060:1996 Microbiology of food and animal feeding stuffs. Enumeration of thermotolerant coliforms by colony-count technique at 44 degrees celsius. Routine method.
NF V08-040-2*NF ISO 21527-2:2008 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of yeasts and moulds - Part 2 : colony count technique in products with water activity less than or equal to 0,95.
NF EN ISO 4833-1:2013 Microbiologie des aliments - Méthode horizontale pour le dénombrement des micro-organismes - Partie 1 : comptage des colonies à 30 oC par la technique d'ensemencement en profondeur
NF EN ISO 4833-2:2013 Microbiologie des aliments - Méthode horizontale pour le dénombrement des micro-organismes - Partie 2 : comptage des colonies à 30 oC par la technique d'ensemencement en surface
NF V04-019-1*NF ISO 11866-1:2006 Milk and milk products - Enumeration of presumptive Escherichia coli - Part 1 : most probable number technique using 4-methylumbelliferyl-Beta-D-glucuronide (MUG).
NF V08-011-1*NF EN ISO 4833-1:2013 Microbiology of the food chain - Horizontal method for the enumeration of microorganisms - Part 1: colony-count at 30 oC by the pour plate technique
NF V08-011-2*NF EN ISO 4833-2:2013 Microbiology of the food chain - Horizontal method for the enumeration of microorganisms - Part 2 : colony count at 30 oC by the surface plating technique
NF V08-011-2/A1*NF EN ISO 4833-2/A1:2022 Microbiology of the food chain - Horizontal method for the enumeration of microorganisms - Part 2 : colony count at 30 oC by the surface plating technique - Amendment 1 : Clarification of scope
NF V08-031-1*NF ISO 16649-1:2018 Microbiology of the food chain - Horizontal method for the enumeration of beta-glucuronidase-positive Escherichia coli - Part 1 : colony-count technique at 44 oC using membranes and 5-bromo-4-chloro-3-indolyl beta-D-glucuronide
NF ISO 16649-1:2018 Microbiologie de la chaîne alimentaire - Méthode horizontale pour le dénombrement des Escherichia coli bêta-glucuronidase positive - Partie 1 : technique de comptage des colonies à 44 oC au moyen de membranes et de 5-bromo-4-chloro-3-indolyl bêta...
NF V08-011-1/A1*NF EN ISO 4833-1/A1:2022 Microbiology of the food chain - Horizontal method for the enumeration of microorganisms - Part 1 : colony count at 30 oC by the pour plate technique - Amendment 1 : Clarification of scope
NF V08-053:2002 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of beta-glucuronidase positive Escherichia coli using 5-bromo-4-chloro-3-indolyl beta-D-glucuronide by colony count technique at 44 oC - Routine method.
NF ISO 16649-2:2001 Microbiologie des aliments - Méthode horizontale pour le dénombrement des Escherichia coli B-glucuronidase positive - Partie 2 : technique de comptage des colonies à 44 oC au moyen de 5-bromo-4-chloro-3-indolyl B-D-glucuronate

BE-NBN, How colonies are counted

NBN V 21-034-1989 Milk products - Enumeration of coliforms - Colony count technique
NBN V 21-004-1989 Milk products - Enumeration of micro-organisms - Colony count technique
NBN V 21-021-1989 Milk products - Enumeration of yeasts and moulds - Colony count technique
NBN V 21-029-1989 Yoghurt - Enumeration of characteristic micro-organisms - Colony count technique
NBN V 21-022-1989 Milk products - Enumeration of microbial contaminants - Colony count technique

VN-TCVN, How colonies are counted

TCVN 6265-2007 Milk and milk products.Enumeration of colony-forming units of yeasts and/or moulds.Colony-count technique at 25 degrees C
TCVN 6261-2007 Milk.Enumeration of colony-forming units of psychrotrophic microorganisms.Colony-count technique at 6,5 degrees C
TCVN 6264-1997 Milk and milk products.Enumeration of colony forming units of microorganisms.Colony count technique at 30oC
TCVN 7139-2002 Meat and meat products.Enumeration of brochthrix thermosphacta.Colony-count technique
TCVN 6505-2-2007 Milk and milk products.Enumeration of presumptive Escherichia coli.Part 2: Colony-count technique at 44 degrees C using membranes
TCVN 7849-2008 Milk products.Enumeration of presumptive Lactobacillus acidophilus on a selective medium.Colony-count technique at 37oC
TCVN 7135-2002 Meat and meat products.Enumeration of Escherichia coli.Colony-count technique at 44oC using membranes
TCVN 6848-2007 Microbiology of food and animal feeding stuffs.Horizontal method for the enumeration of coliforms.Colony-count technique
TCVN 4991-2005 Microbiology of food and animal feeding stuffs.Horizontal method for the enumeration of Clostridium perfringens.Colony count technique
TCVN 6686-2-2007 Milk.Enumeration of somatic cells.Part 2: Guidance on the operation of fluoro-opto-electronic counters
TCVN 4992-2005 Microbiology of food and animal feeding stuffs.Horizontal method for the enumeration of presumptive Bacillus cereus.Colony count technique at 30 Oc
TCVN 5518-2-2007 Microbiology of food and animal feeding stuffs.Horizontal methods for the detection and enumeration of Enterobacteriaceae.Part 2: Colony-count method
TCVN 6686-1-2009 Milk.Enumeration of somatic cells.Part 1: Microscopic method (Reference method)
TCVN 7715-2-2007 Microbiology of food and animal feeding stuffs.Horizontal method for detection and enumeration of Campylobacter spp.Part 2: Colony-count technique
TCVN 4884-2005 Microbiology of food and animal feeding stuffs.Horizontal method for the enumeration of microorganisms.Colony count technique at 30 oC
TCVN 4884-1-2015 Microbiology of the food chain - Horizontal method for the enumeration of microorganisms .Part 1: Colony count at 30 degrees C by the pour plate technique
TCVN 4884-2-2015 Microbiology of the food chain - Horizontal method for the enumeration of microorganisms .Part 2: Colony count at 30 degrees C by the surface plating technique
TCVN 6505-1-2007 Milk and milk products.Enumeration of presumptive Escherichia coli.Part 1: Most probable number technique using 4-methylumbelliferyl-beta-D-glucuronide (MUG)

International Dairy Federation (IDF), How colonies are counted

IDF 101-2005 Milk - Enumeration of colony-forming units of psychrotrophic microorganisms - Colony-count technique at 6.5℃
IDF 117-2003 Yogurt - Enumeration of characteristic microorganisms - Colony-count technique at 37℃
IDF 192-2006 Milk products - Enumeration of presumption Lactobacillus acidophilus on a selective medium - Colony-count technique at 37℃
IDF 170-2-2005 Milk and milk products - Enumeration of presumptive Escherichia coli - Part 2: Colony-count technique at 44℃ using membranes
IDF 132-2004 Milk - Estimation of psychrotrophic microorganisms - Colony-count technique at 21℃ (Rapid method)
IDF 153-2002 Butter, fermented milks and fresh cheese - Enumeration of contaminating microorganisms - Colony-count technique at 30℃
IDF 180-2006 Milk, milk products and mesophilic starter cultures - Enumeration of citrate-fermenting lactic acid bacteria - Colony-count technique at 25 ℃
IDF 169-1-2005 Milk and milk products - Quality control in microbiological laboratories - Part 1: Analyst performance assessment for colony counts

National Metrological Technical Specifications of the People's Republic of China, How colonies are counted

JJF 1751-2019 Calibration Specification for Colony Counters

RO-ASRO, How colonies are counted

STAS SR ISO 6611:1996 Milk and milk products - Enumeration of colony - forming units of yeasts and/or moulds - Colony - count technique at 25 °C
STAS SR ISO 6730:1996 Milk - Enumeration of colony-forming units of psychrotrophic micro-organisms - Colony-count technique at 6,5°C
STAS SR ISO 6888:1992 Microbiology. General guidance for enumeration of Staphylococcus aureus. Colony count technique
STAS ISO 4832:1992 Microbiology-General guidance for the enumeration of coliforms Colony count technique
SR ISO 5541-2:1986 Milk and milk products - Enumeration of coliforms - Part2: Most probable number tecfinique at 30°C

Korean Agency for Technology and Standards (KATS), How colonies are counted

KS J ISO 4832:2007 Microbiology of food and animal feeding stuffs－Horizontal method for the enumeration of coliforms－Colony-count technique
KS H ISO 11866-2:2006 Milk and milk products-Enumeration of presumptive Escherichia coli- Part 2:Most probable number technique using 4-methylumbelliferyl-b-D-glucuronide(MUG)
KS J ISO 7954:2007 Microbiology－General guidance for enumeration of yeasts and moulds－Colony count technique at 25 ℃
KS H ISO 5541-1:2007 Milk and milk products－Enumeration of coliforms－Part 1：Colony count technique at 30 ℃
KS H ISO 5541-1:2006 Milk and milk products－Enumeration of coliforms－Part 1：Colony count technique at 30 ℃
KS J ISO 4832-2007(2021) Microbiology of food and animal feeding stuffs－Horizontal method for the enumeration of coliforms－Colony-count technique
KS H ISO 7402:2002 Microbiology－General guidance for the enumeration of Enterobacteriaceae without resuscitation－MPN technique and colony-count technique
KS J ISO 4832-2007(2012) Microbiology of food and animal feeding stuffs－Horizontal method for the enumeration of coliforms－Colony-count technique
KS J ISO 15214-2007(2012) Microbiology of food and animal feeding stuffs－Horizontal method for the enumeration of mesophilic lactic acid bacteria－Colony-count technique at 30 ℃
KS J ISO 7937-2007(2021) Microbiology of food and animal feeding stuffs－Horizontal method for the enumeration of Clostridium perfringens－Colony-count technique
KS J ISO 7937-2007(2012) Microbiology of food and animal feeding stuffs－Horizontal method for the enumeration of Clostridium perfringens－Colony-count technique
KS J ISO 15214-2007(2021) Microbiology of food and animal feeding stuffs－Horizontal method for the enumeration of mesophilic lactic acid bacteria－Colony-count technique at 30 ℃
KS J ISO 7937:2007 Microbiology of food and animal feeding stuffs－Horizontal method for the enumeration of Clostridium perfringens－Colony-count technique
KS J ISO 15214:2007 Microbiology of food and animal feeding stuffs－Horizontal method for the enumeration of mesophilic lactic acid bacteria－Colony-count technique at 30 ℃
KS J ISO 7932-2007(2012) Microbiology of food and animal feeding stuffs－Horizontal method for the enumeration of presumptive Bacillus cereus－Colony-count technique at 30 ℃
KS H ISO 13366-2:2006 Milk－Enumeration of somatic cells－Part 2：Guidance on the operation of fluoro-opto-electronic counters
KS J ISO 7932:2007 Microbiology of food and animal feeding stuffs－Horizontal method for the enumeration of presumptive Bacillus cereus－Colony-count technique at 30 ℃
KS J ISO 7932-2007(2021) Microbiology of food and animal feeding stuffs－Horizontal method for the enumeration of presumptive Bacillus cereus－Colony-count technique at 30 ℃
KS J ISO 4833-2007(2012) Microbiology of food and animal feeding stuffs－Horizontal method for the enumeration of microorganisms－Colony-count technique at 30℃
KS H ISO 11866-1:2006 Milk and milk products－Enumeration of presumptive Escherichia coli－Part 1：Most probable number technique
KS J ISO 21528-2:2007 Microbiology of food and animal feeding stuffs－Horizontal methods for the detection and enumeration of Enterobacteriaceae－ Part 2：Colony-count method
KS J ISO 21528-2-2007(2012) Microbiology of food and animal feeding stuffs－Horizontal methods for the detection and enumeration of Enterobacteriaceae－ Part 2：Colony-count method
KS J ISO 21528-2-2007(2021) Microbiology of food and animal feeding stuffs－Horizontal methods for the detection and enumeration of Enterobacteriaceae－ Part 2：Colony-count method
KS J ISO 4833-2007(2021) Microbiology of food and animal feeding stuffs－Horizontal method for the enumeration of microorganisms－Colony-count technique at 30℃
KS I ISO 6222:2019 Water quality ― Enumeration of culturable micro-organisms ― Colony count by inoculation in a nutrient agar culture medium
KS H ISO 13366-1:2006 Milk－Enumeration of somatic cells－Part 1：Microscopic method
KS J ISO TS 10272-2:2007 Microbiology of food and animal feeding stuffs－Horizontal methodfor detection and enumeration of Campylobacter spp.－Part 2：Colony-count technique
KS J ISO 4833:2007 Microbiology of food and animal feeding stuffs－Horizontal method for the enumeration of microorganisms－Colony-count technique at 30℃
KS J ISO 4831:2007 Microbiology of food and animal feeding stuffs－Horizontal method for the detection and enumeration of coliforms－Most probable number technique
KS M ISO 10718:2004 Cork stoppers－Enumeration of colony-forming units of yeasts, moulds and bacteria capable of growth in an alcoholic medium
KS I ISO 9998:2008 Water quality－Practices for evaluating and controlling microbiological colony count media used in water quality tests

未注明发布机构, How colonies are counted

BS ISO 6611:2004(2010) Milk and milk products — Enumeration of colony - forming units of yeasts and / or moulds — Colony - count technique at 25 °C
BS ISO 4832:2006(2009) Microbiology of food and animal feeding stuffs — Horizontal method for the enumeration of coliforms — Colony - count technique
BS EN ISO 21528-2:2017(2018) Microbiology of the food chain - Horizontal method for the detection and enumeration of Enterobacteriaceae Part 2 : Colony - count technique
BS EN ISO 6222:1999(2008) Water quality — Enumeration of culturable micro - organisms — Colony count by inoculation in a nutrient agar culture medium

Professional Standard - Commodity Inspection, How colonies are counted

SN 0168-1992 Plate count for bacterial colonies in foodfor export
SN/T 0168-2015 The aerobic plate counts in foods for import and export
SN/T 3466-2013 Plate count for bacterial colonies in food for export.Membrane filter method
SN/T 1059.3-2002 Plate count for bacerial colonies in food for import and export.Membrane filter method
SN/T 1607-2005 Total bacterial count,coliform,fecal coliform and Escherichia coli counts in drink for import and export--Hydrophobic grid membrane filtration mtehod
SN/T 1800-2006 Microbiology of food and animal feeding stuffs.Colony-count method at 30°C
SN/T 2552.3-2010 Microbiological examination for milk and milk products hygiene.Part 3:Colony-count method of yeast and moulds
SN/T 2098-2008 Determination of aerobic bacterial count in foods and cosmetics.Spiral plate method
SN/T 2910.5-2013 Determination of irradiated food for export.Part 5:Direct epifluorescent filter and aerobic plate count method
SN/T 2552.4-2010 Microbiological examination for milk and milk products hygiene.Part 4:Colony.count method of psychrotrophic microorganisms

Lithuanian Standards Office , How colonies are counted

LST ISO 6611:2004 Milk and milk products. Enumeration of colony-forming units of yeasts and/or moulds. Colony-count technique at 25 °C (idt ISO 6611:2004)
LST ISO 6730:2005 Milk. Enumeration of colony-forming units of psychrotropic microorganisms. Colony-count technique at 6,5 °C (idt ISO 6730:2005)
LST ISO 29981:2010 Milk products - Enumeration of presumptive bifidobacteria - Colony count technique at 37 °C (ISO 29981:2010, identical)
LST ISO 7889:2005 Yogurt. Enumeration of characteristic microorganisms. Colony-count technique at 37 °C (idt ISO 7889:2003)
LST ISO 4832:2006 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of coliforms - Colony-count technique (identical ISO 4832:2006)
LST EN ISO 7937:2004 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of Clostridium perfringens - Colony-count technique (ISO 7937:2004)
LST EN ISO 7932:2005 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of presumptive Bacillus cereus - Colony-count technique at 30 °C (ISO 7932:2004)
LST ISO 15214:2009 Microbiology of food and animal feeding stuffs - Horizontal method for the emumeration of mesophilic lactic acid bacteria - Colony-count technique at 30 °C (ISO 15214:1998, identical)
LST ISO 21528-2:2009 Microbiology of food and animal feeding stuffs - Horizontal methods for the detection and enumeration of Enterobacteriaceae - Part 2: Colony-count method (ISO 21528-2:2004, identical)
LST ISO 13559:2004 Butter, fermented milks and fresh cheese. Enumeration of contaminating microorganisms. Colony-count technique at 30 °C (idt ISO 13559:2002)
LST EN ISO 6222:2001 Water quality - Enumeration of culturable micro-organisms - Colony count by inoculation in a nutrient agar culture medium (ISO 6222:1999)
LST ISO 21527-1:2008 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of yeasts and moulds - Part 1: Colony count technique in products with water activity greater than 0,95 (ISO 21527-1:2008, identical)
LST EN ISO 4833:2003 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of microorganisms - Colony-count technique at 30 degrees C (ISO 4833:2003)
LST ISO 21527-2:2008 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of yeasts and moulds - Part 2: Colony count technique in products with water activity less than or equal to 0,95 (ISO 21527-2:2008, identical)

AENOR, How colonies are counted

UNE 34821:1986 MILK AND MILK PRODUCTS. ENUMERATION OF YEASTS AND MOULDS. COLONY COUNT AT 25 C.
UNE 34819:1985 LIQUID MILK. ENUMERATION OF PSYCHROTROPHIC MICRO-ORGANISMS. (COLONY COUNT TECHNIQUE AT 6,5 C).
UNE-EN ISO 7937:2005 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of Clostridium perfringens - Colony-count technique (ISO 7937:2004)
UNE-EN ISO 7932:2005 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of presumptive Bacillus cereus - Colony-count technique at 30 °C (ISO 7932:2004)
UNE-EN ISO 6222:1999 WATER QUALITY - ENUMERATION OF CULTURABLE MICRO-ORGANISMS. COLONY COUNT BY INOCULATION IN A NUTRIENT AGAR CULTURE MEDIUM (ISO 6222:1999)
UNE-EN ISO 4833-1:2014 Microbiology of the food chain - Horizontal method for the enumeration of microorganisms - Part 1: Colony count at 30 degrees C by the pour plate technique (ISO 4833-1:2013)
UNE-EN ISO 4833-2:2014 Microbiology of the food chain - Horizontal method for the enumeration of microorganisms - Part 2: Colony count at 30 degrees C by the surface plating technique (ISO 4833-2:2013)

KR-KS, How colonies are counted

KS J ISO 7954-2007 Microbiology－General guidance for enumeration of yeasts and moulds－Colony count technique at 25 ℃
KS H ISO 5541-1-2006 Milk and milk products－Enumeration of coliforms－Part 1：Colony count technique at 30 ℃
KS H ISO 7402-2002 Microbiology－General guidance for the enumeration of Enterobacteriaceae without resuscitation－MPN technique and colony-count technique
KS J ISO 21528-2-2022 Microbiology of the food chain Horizontal method for the detection and enumeration of Enterobacteriaceae Part 2: Colony count technique
KS I ISO 6222-2019 Water quality ― Enumeration of culturable micro-organisms ― Colony count by inoculation in a nutrient agar culture medium
KS J ISO 7932-2022 Microbiology of food and animal feeding stuffs Horizontal method for the enumeration of presumptive Bacillus cereus Colony count technique at 30℃
KS J ISO 16649-1-2022 Microbiology of the food chain Horizontal method for the enumeration of beta glucuronidase positive Escherichia coli Part 1: Colony count technique at 44 °C using membranes and 5 bromo 4 chloro 3 indo

Danish Standards Foundation, How colonies are counted

DS/ISO 7889:2003 Yogurt - Enumeration of characteristic microorganisms - Colony-count technique at 37 °C
DS 2401:1999 Environmental quality - Enumeration of enterococci - Colony count on solid medium - Spread plate method
DS 3029:2001 Environmental quality - Enumeration of Legionella - Concentration and colony count on solid medium - Spread plate method
DS/ISO 4832:2006 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of coliforms - Colony-count technique
DS/ISO 15214:1998 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of mesophilic lactic acid bacteria - Colony-count technique at 30 °C
DS/EN ISO 7937:2004 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of Clostridium perfringens - Colony-count technique
DS/ISO 8552:2004 Milk - Estimation of psychrotrophic microorganisms - Colony-count technique at 21 °C (Rapid method)
DS/ISO 21528-2:2005 Microbiology of food and animal feeding stuffs - Horizontal methods for the detection and enumeration of Enterobacteriaceae - Part 2: Colony-count method
DS/ISO 13559:2003 Butter, fermented milks and fresh cheese - Enumeration of contaminating microorganisms - Colony-count technique at 30 °C
DS/EN ISO 6222/Till.1:2002 Water quality - Enumeration of culturable micro-organisms - Colony count by inoculation in a nutrient agar culture medium
DS/EN ISO 7932:2005 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of presumptive Bacillus cereus - Colony-count technique at 30° C
DS/ISO 17792:2007 Milk, milk products and mesophilic starter cultures - Enumeration of citrate-fermenting lactic acid bacteria - Colony-count technique at 25 degrees C
DS/ISO/TS 10272-2:2006 Microbiology of food and animal feeding stuffs - Horizontal method for detection and enumeration of Campylobacter spp. - Part 2: Colony-count technique
DS/ISO 21527-1:2008 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of yeasts and moulds - Part 1: Colony count technique in products with water activity greater than 0,95
DS 2217:1999 Water quality - Enumeration of viable micro-organisms using colony count on blood agar at 37 °C - Membrane filtration method
DS/EN ISO 6222:2000 Water quality - Enumeration of culturable micro-organisms - Colony count by inoculation in a nutrient agar culture medium (ISO 6222:1999)
DS/ISO 21527-2:2008 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of yeasts and moulds - Part 2: Colony count technique in products with water activity less than or equal to 0,95
DS/EN ISO 4833-1:2013 Microbiology of the food chain - Horizontal method for the enumeration of microorganisms - Part 1: Colony count at 30 degrees C by the pour plate technique
DS/ISO 14461-1:2005 Milk and milk products – Quality control in microbiological laboratories – Part 1: Analyst performance assessment for colony counts

ZA-SANS, How colonies are counted

SANS 4832:2007 Microbiology of feed and animal feeding stuffs - Horizontal method for the enumeration of coliforms - Colony-count technique
SANS 6391:1997 Meat and meat products - Enumeration of Escherichia coli - Colony-count technique at 44 °C using membranes
SANS 7954:1987 Microbiology - General guidance for enumeration of yeasts and moulds - Colony count technique at 25 °C
SANS 7937:2007 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of Clostridium perfringens - Colony-count technique
SANS 21528-2:2005 Microbiology of food and animal feeding stuffs - Horizontal methods for the detection and enumeration of Enterobacteriaceae Part 2: Colony-count method
SANS 4833:2007 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of microorganisms - Colony-count technique at 30 °C
SANS 7932:2005 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of presumptive Bacillus cereus - Colony-count technique at 30 °C
SANS 21527-1:2009 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of yeasts and moulds Part 1: Colony count technique in products with water activity greater than 0,95
SANS 15214:1998 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of mesophilic lactic acid bacteria - Colony-count technique at 30 °C
SANS 313:2004 Water quality - Enumeration of culturable micro-organisms - Colony count by inoculation in a nutrient agar culture medium
SANS 9998:2004 Water quality - Practices for evaluating and controlling microbiological colony count media used in water quality tests

Group Standards of the People's Republic of China, How colonies are counted

T/GXAIA 001-2023 Rapid enumeration of aerobic plate count in fresh rice noodles
T/HBFIA 0031-2022 Chromogenic plate counting method for the determination of the total number of bacterial colonies in water

European Committee for Standardization (CEN), How colonies are counted

EN ISO 7932:1997 Microbiology - General Guidance for the Enumeration of Bacillus Cereus - Colony-Count Technique at 30 Degrees C ISO 7932: 1993
EN ISO 7932:2004 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of presumptive Bacillus cereus - Colony-count technique at 30 degrees C (ISO 7932:2004)
FprCEN/TS 17719-2021 Plant biostimulants - Determination of the anaerobic plate count
EN ISO 21528-2:2017 Microbiology of the food chain - Horizontal method for the detection and enumeration of Enterobacteriaceae - Part 2: Colony-count technique
EN ISO 7932:2004/A1:2020 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of presumptive Bacillus cereus - Colony-count technique at 30 degrees C - Amendment 1: Inclusion of optional tests (ISO 7932:2004/Amd 1:2020, Corrected version 2020-08)
EN ISO 10272-2:2017 Microbiology of the food chain - Horizontal method for detection and enumeration of Campylobacter spp. - Part 2: Colony-count technique
EN ISO 13366-2:1997 Milk - Enumeration of Somatic Cells - Part 2: Electronic Particle Counter Method ISO 13366-2: 1997
EN 13401:1999 Microbiology of Food and Animal Feeding Stuffs - Horizontal Method for Enumeration of Clostridium Perfringens - Colony - Count Technique ISO 7937:1997 Modified
EN ISO 15213-1:2023 Microbiology of the food chain - Horizontal method for the detection and enumeration of Clostridium spp. - Part 1: Enumeration of sulfite-reducing Clostridium spp. by colony-count technique (ISO 15213-1:2023)
prEN ISO 15213-2 Microbiology of the food chain - Horizontal method for the detection and enumeration of Clostridium spp. - Part 2: Enumeration of Clostridium perfringens by colony-count technique (ISO/DIS 15213-2:2022)
prEN ISO 15213-1:2021 Microbiology of the food chain - Horizontal method for the detection and enumeration of Clostridium spp. - Part 1: Enumeration of sulfite-reducing Clostridium spp. by colony-count technique (ISO/DIS 15213-1:2021)
EN ISO 13366-2:2006 Milk - Enumeration of somatic cells - Part 2: Guidance on the operation of fluoro-opto-electronic counters
EN ISO 10272-2:2017/A1:2023 Microbiology of the food chain - Horizontal method for detection and enumeration of Campylobacter spp. - Part 2: Colony-count technique - Amendment 1: Inclusion of methods for molecular confirmation and identification of thermotolerant Campylobacter spp.
EN ISO 7937:2004 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of Clostridium perfringens - Colonycount technique
EN ISO 13366-2:2006/AC:2007 Milk - Enumeration of somatic cells - Part 2: Guidance on the operation of fluoro-opto-electronic counters (ISO 13366-2:2006)
EN ISO 10273:2017 Microbiology of the food chain - Horizontal method for the detection of pathogenic Yersinia enterocolitica (ISO 10273:2017)

SE-SIS, How colonies are counted

SIS SS 02 81 79-1986 Faecal streptococci in water - Enumeration with colony counting methods

CZ-CSN, How colonies are counted

CSN ISO 7939:1995 Microbiology - General guidance for enumeration of Clostridium perfringens - Colony count technique
CSN ISO 4832:1995 Microbiology-General guidance for the enumeration of coliforms-Colony count technique
CSN ISO 6391:1995 Meat and meat products-Enumeration of Escherichia coli-Colony count technique at 44℃ using membranes

Professional Standard - Urban Construction, How colonies are counted

CJ/T 3018.14-1993 Leachate.Detecton of total bacteria number.plate count for bacteria colonies

Standard Association of Australia （SAA）, How colonies are counted

AS 5013.4:2004 Food microbiology - Microbiology - General guidance for the enumeration of coliforms - Colony count technique
AS 1766.2.2:1997 Food microbiology - Examination for specific organisms - Colony count of yeasts and moulds
AS/NZS 4276.3.2:2003 Water microbiology - Heterotrophic colony count methods - Plate count of water containing biocides
AS 5013.22:2004 Food microbiology - Meat and meat products - Enumeration of Brochothrix thermosphacta - Colony-count technique
AS 5013.8:2004 Food microbiology - Meat and meat products - Detection and enumeration of Enterobacteriaceae without resuscitation - MPN technique and colony-count technique
AS 4276.3.1:1995 Water microbiology Method 3.1:Heterotrophic colony count methods - Pour plate method using plate count agar
AS 5013.16:2004 Food microbiology Method 16: Microbiology of food and animal feeding stuffs--Horizontal method for enumeration of Clostrdium perfringens--Colony-count technique
AS 5013.16:2006 Food microbiology - Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of Clostridium perfringens - Colony-count technique
AS 5013.8.2:2019 Food microbiology, Method 8.2: Microbiology of the food chain — Horizontal method for the detection and enumeration of Enterobacteriaceae — Colony-count technique (ISO 21528-2:2017, MOD)
AS 5013.14.2:2009 Food microbiology Method 14.2: General procedures and techniques—Colony count—Membrane filtration method
AS 5013.4:2021 Food microbiology, Method 4: Microbiology of food and animal feeding stuffs — Horizontal method for the enumeration of coliforms — Colony-count technique (ISO 4832:2006, MOD)
AS 5013.2:2007 Food microbiology - Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of Bacillus cereus - Colony-count technique at 30?C (ISO 7932:2004, MOD)
AS 5013.14.3:2012
AS/NZS 4276.3.1:2007 Water microbiology - Heterotrophic colony count methods - Pour plate method using yeast extract agar
AS 5013.4:2009 Food microbiology Method 4: Microbiology of food and animal feeding stuffs—Horizontal method for the enumeration of coliforms—Colony-count technique
AS 5013.5:2016 Food microbiology, Method 5: Microbiology of the food chain — Horizontal method for the enumeration of microorganisms — Colony count at 30°C by the pour plate technique

AT-ON, How colonies are counted

ONORM N 2502-1994 Microbiological analysis of milk and milk products - Enumeration of colrforms (Colony count technique at 30 °C)
ONR CEN/TS 17719-2021 Plant biostimulants - Determination of the anaerobic plate count
ONORM DIN 10198-1-1994 Microbiological analysis of milk. Determination of presumptive Bacillus cereus. Colony count technique
OENORM EN ISO 15213-1:2021 Microbiology of the food chain - Horizontal method for the detection and enumeration of Clostridium spp. - Part 1: Enumeration of sulfite-reducing Clostridium spp. by colony-count technique (ISO/DIS 15213-1:2021)
ONORM N 2504-1994 Microbiological analysis of milk and milk products - Enumeration of microorganisms (Colony count technique at 30 °C) - Reference method

IN-BIS, How colonies are counted

IS 13059-1991

German Institute for Standardization, How colonies are counted

DIN 10050-3:1999 Testing of butter wrappers - Part 3: Colony count
DIN EN ISO 7937:2004 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of Clostridium perfringens - Colony-count technique (ISO 7937:2004); German version EN ISO 7937:2004
DIN EN ISO 21528-2:2019-05 Microbiology of the food chain - Horizontal method for the detection and enumeration of Enterobacteriaceae - Part 2: Colony-count technique (ISO 21528-2:2017, Corrected version 2018-06-01); German version EN ISO 21528-2:2017
DIN EN ISO 7937:2004-11 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of Clostridium perfringens - Colony-count technique (ISO 7937:2004); German version EN ISO 7937:2004 / Note: To be replaced by DIN EN ISO 15213-1 (2021-10, t), DIN E...
DIN 54378:2021 Testing of paper and board - Determination of the surface colony count (OKZs)
DIN 54378:1993 Testing of paper and board; determination of the surface colony count OKZs
DIN EN ISO 15213-2:2022-10 Microbiology of the food chain - Horizontal method for the detection and enumeration of Clostridium spp. - Part 2: Enumeration of Clostridium perfringens by colony-count technique (ISO/DIS 15213-2:2022); German and English version prEN ISO 15213-2:2022...
DIN EN ISO 15213-1:2023-05 Microbiology of the food chain - Horizontal method for the detection and enumeration of Clostridium spp. - Part 1: Enumeration of sulfite-reducing Clostridium spp. by colony-count technique (ISO 15213-1:2023); German version EN ISO 15213-1:2023
DIN 10192-5:1995 Microbiological analysis of milk - Colony count - Part 5: Spatuala method
DIN EN ISO 13366-1:2008 Milk - Enumeration of somatic cells - Part 1: Microscopic method (Reference method) (ISO 13366-1:2008); German version EN ISO 13366-1:2008
DIN 54378:2021-02 Testing of paper and board - Determination of the surface colony count (OKZ<(Index)s>)
DIN 10122:2005 Analysis of foodstuffs - Enumeration of microorganisms by means of impedance-method - Determination of aerobic mesophile bacterial count
DIN EN ISO 7932:2020-11 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of presumptive Bacillus cereus - Colony-count technique at 30 degrees C (ISO 7932:2004 + Amd 1:2020, Corrected version 2020-08); German version EN ISO 7932:2004 + A1...
DIN EN ISO 7932:2005 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of presumptive Bacillus cereus - Colony-count technique at 30 °C (ISO 7932:2004); German version EN ISO 7932:2004
DIN 10198:2010 Microbiological analysis of milk - Determination of presumptive Bacillus cereus - Colony count technique at 37 °C
DIN EN ISO 13366-2:2007 Milk - Enumeration of somatic cells - Part 2: Guidance on the operation of fluoro-opto-electronic counters (ISO 13366-2:2006); English version of DIN EN ISO 13366-2:2007-01
DIN EN ISO 6222:1999 Water quality - Enumeration of culturable micro-organisms - Colony count by inoculation in a nutrient agar culture medium (ISO 6222:1999); German version EN ISO 6222:1999
DIN 10198:2010-07 Microbiological analysis of milk - Determination of presumptive Bacillus cereus - Colony count technique at 37 °C / Note: Applies in conjunction with DIN EN ISO 7932 (2005-03).*To be replaced by DIN 10198 (2021-08).
DIN EN ISO 6222:1999-07 Water quality - Enumeration of culturable micro-organisms - Colony count by inoculation in a nutrient agar culture medium (ISO 6222:1999); German version EN ISO 6222:1999
DIN 21057-1:2016-12 Microbiological analysis of meat and meat products - Aerobic count at 30 °C - Drop plating method
DIN 10161:2016-12 Microbiological analysis of meat and meat products - Aerobic count at 30 °C - Drop plating method
DIN EN 15876-1:2016-12 Microbiological analysis of meat and meat products - Aerobic count at 30 °C - Drop plating method
DIN EN ISO 10272-2:2023-07 Microbiology of the food chain - Horizontal method for detection and enumeration of Campylobacter spp. - Part 2: Colony-count technique (ISO 10272-2:2017 + Amd 1:2023); German version EN ISO 10272-2:2017 + A1:2023
DIN 10198-1:1999 Microbiological analysis of milk - Determination of presumptive Bacillus cereus - Part 1: Colony count technique at 37 °C
DIN EN ISO 15213-1:2023 Microbiology of the food chain - Horizontal method for the detection and enumeration of Clostridium spp. - Part 1: Enumeration of sulfite-reducing Clostridium spp. by colony-count technique (ISO 15213-1:2023)
DIN EN ISO 21528-2:2017 Microbiology of the food chain - Horizontal method for the detection and enumeration of Enterobacteriaceae - Part 2: Colony-count technique (ISO 21528-2:2017); German version EN ISO 21528-2:2017
DIN EN ISO 10272-2:2017 Microbiology of the food chain - Horizontal method for the detection and enumeration of Campylobacter spp. - Part 2: Colony-count technique (ISO 10272-2:2017); German version EN ISO 10272-2:2017
DIN EN ISO 13366-2 Berichtigung 1:2007 Milk - Enumeration of somatic cells - Part 2: Guidance on the operation of fluoro-opto-electronic counters (ISO 13366-2:2006); German version EN ISO 13366-2:2006, Corrigenda to DIN EN ISO 13366-2:2007-01; German version EN ISO 13366-2:2006/AC:2007
DIN EN ISO 4833-2:2022-05 Microbiology of the food chain - Horizontal method for the enumeration of microorganisms - Part 2: Colony count at 30 °C by the surface plating technique (ISO 4833-2:2013 + Cor. 1:2014 + Amd 1:2022); German version EN ISO 4833-2:2013 + AC:2014 + A1:2022
DIN EN ISO 4833-1:2022-05 Microbiology of the food chain - Horizontal method for the enumeration of microorganisms - Part 1: Colony count at 30 °C by the pour plate technique (ISO 4833-1:2013 + Amd 1:2022); German version EN ISO 4833-1:2013 + A1:2022
DIN ISO 21528-2:2009 Microbiology of food and animal feeding stuffs - Horizontal methods for the detection and enumeration of Enterobacteriaceae - Part 2: Colony-count method (ISO 21528-2:2004)
DIN 10110:1994 Microbiological analysis of meat and meat products - Determination of Escherichia coli - Fluorescence optical colony count method using membranes; spatula method (Reference method)
DIN ISO 16649-1:2020 Microbiology of the food chain - Horizontal method for the enumeration of beta-glucuronidase-positive Escherichia coli - Part 1: Colony-count technique at 44 ？C using membranes and 5-bromo-4-chloro-3-indolyl beta-D-glucuronide (ISO 16649-1:2018)
DIN EN ISO 7932:2020 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of presumptive Bacillus cereus - Colony-count technique at 30 degrees C (ISO 7932:2004 + Amd 1:2020, Corrected version 2020-08); German version EN ISO 7932:2004 + A1:20

RU-GOST R, How colonies are counted

GOST ISO 7889-2015 Yogurt. Enumeration of characteristic microorganisms. Colony-count technique after incubation at 37 °C
GOST ISO 29981-2013 Milk products. Enumeration of presumptive bifidobacteria. Colony count technique at 37 °C
GOST 10444.8-2013 Microbiology of food and animal feeding stuffs. Horizontal method for the enumeration of presumptive Bacillus cereus. Colony-count technique at 30 °C
GOST 31744-2012 Microbiology of food and animal feeding stuffs. Clostridium perfringens colony-count technique
GOST ISO/TS 10272-2-2013 Microbiology of food and animal feeding stuffs. Methods for detection and enumeration of Campylobacter spp. Part 2. Colony-count technique
GOST 10444.12-2013 Microbiology of food and animal feeding stuffs. Methods for the detection and colony count of yeasts and moulds
GOST R 53400-2009 Microbiology of food and animal feeding stuffs. Horizontal method Colony-count technigue of Clostridium erfringens
GOST ISO 21527-1-2013 Microbiology of food and animal feeding stuffs. Method for the enumeration of yeasts and moulds. Part 1. Colony count technique in products with water activity greater than 0,95
GOST R ISO 21527-1-2010 Microbiology of food and animal feeding stuffs. Method for the enumeration of yeasts and moulds. Part 1. Colony count technique in products with water activity greater than 0,95
GOST ISO 21527-2-2013 Microbiology of food and animal feeding stuffs. Horizontal method for the enumeration of yeasts and moulds. Part 2. Colony count technique in products with water activity less than or equal 0,95
GOST ISO 16649-2-2015 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of β-glucuronidase-positive Escherichia coli - Part 2: Colony-count technique at 44 °C using 5-bromo-4-chloro-3-indolyl β-D-glucoronide

ES-UNE, How colonies are counted

UNE-EN ISO 21528-2:2018 Microbiology of the food chain - Horizontal method for the detection and enumeration of Enterobacteriaceae - Part 2: Colony-count technique (ISO 21528-2:2017, Corrected version 2018-06-01)
UNE-EN ISO 10272-2:2018 Microbiology of the food chain - Horizontal method for detection and enumeration of Campylobacter spp. - Part 2: Colony-count technique (ISO 10272-2:2017)
UNE-EN ISO 7932:2005/A1:2021 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of presumptive Bacillus cereus - Colony-count technique at 30 degrees C - Amendment 1: Inclusion of optional tests (ISO 7932:2004/Amd 1:2020, Corrected version 2020-08)

CEN - European Committee for Standardization, How colonies are counted

EN ISO 4833:2003 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of microorganisms - Colony-count technique at 30 degrees C

Indonesia Standards, How colonies are counted

SNI ISO 7937:2012 Microbiology of food and animal feeding stuffs - Horizontal method for enumeration of Clostridium perfringens - colony count technique
SNI ISO 7932:2012
SNI ISO 21527-1:2012 Microbiology of food and animal feeding stuffs – Horizontal method for the enumeration of yeasts and moulds – Part 1: Colony count technique in products with water activity greater than 0,95
SNI ISO 21527-2:2012 Microbiology of food and animal feeding stuffs – Horizontal method for the enumeration of yeasts and moulds – Part 2: Colony count technique in products with water activity less than or equal to 0,95

Japanese Industrial Standards Committee (JISC), How colonies are counted

JIS K 0430-72-10:2000 Water quality -- Enumeration of viable micro-organisms -- Colony count by inoculation in or on a nutrient culture medium

国家质量监督检验检疫总局, How colonies are counted

SN/T 1607-2017 Methods for counting total bacterial colonies, coliforms, fecal coliforms, and Escherichia coli in exported beverages Hydrophobic grid filter method

FI-SFS, How colonies are counted

SFS-ISO 7937 E:1987 This standard is approved in English
SFS-ISO 6888 E:1987 This standard is approved in English

TH-TISI, How colonies are counted

TIS 2239-2005 Microbiology of food and animal feeding stuffs.horizontal method for the enumeration of mesophilic lactic acid bacteria.colony.count technique at 30℃

IT-UNI, How colonies are counted

EC 1-2020 UNI EN ISO 7932:2020 Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of presumptive Bacillus cereus - Colony-count technique at 30 degrees C

GOSTR, How colonies are counted

GOST ISO 6222-2018 Water quality. Enumeration of culturable micro-organisms. Colony count by inoculation in a nutrient agar culture medium
GOST ISO 10718-2018 Cork stoppers. Enumeration of colony-forming units of yeasts, moulds and bacteria, capable of both being extracted and growing in alcoholic medium for сharacterization of a low-in-germs stoppers

American Society for Testing and Materials (ASTM), How colonies are counted

ASTM D5465-16(2020) Standard Practices for Determining Microbial Colony Counts from Waters Analyzed by Plating Methods
ASTM F2944-20 Standard Practice for Automated Colony Forming Unit (CFU) Assays—Image Acquisition and Analysis Method for Enumerating and Characterizing Cells and Colonies in Culture

Professional Standard - Agriculture, How colonies are counted

水产品质量安全检验手册 3.1.2.0-2005 Chapter 3 Inspection of microorganisms in aquatic products Section 1 Inspection of the total number of bacteria 2. Counting of plate colonies (SN 0168-1992)

ASHRAE - American Society of Heating@ Refrigerating and Air-Conditioning Engineers@ Inc., How colonies are counted

ASHRAE DA-07-048-2007 The impact of Moore's Law on the Total Cost of Computing and How Inefficiencies in the Data Center Increase These Costs