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Enzyme activity

Enzyme activity, Total:308 items.

In the international standard classification, Enzyme activity involves: Sugar. Sugar products. Starch, Biology. Botany. Zoology, Microbiology, Cereals, pulses and derived products, Edible oils and fats. Oilseeds, Animal feeding stuffs, Medical sciences and health care facilities in general, Food products in general, General methods of tests and analysis for food products, Products of the chemical industry, Analytical chemistry, Milk and milk products, Processes in the food industry, Soil quality. Pedology, Terminology (principles and coordination), Water quality, Farming and forestry, Laboratory medicine, Air quality, Test conditions and procedures in general.

RU-GOST R, Enzyme activity

GOST R 54386-2011 Honey. Methods for determination of sucrase activity, of diastase activity, of insoluble matter
GOST R 55298-2012 Enzyme preparations for food industry. Methods for determination of pectolytic activity
GOST R ISO 30024-2012 Animal feeding stuffs. Determination of phytase activity
GOST R 53360-2009 Enzyme preparation. Methods of detection of phytase activity
GOST R 55302-2012 Enzyme preparations. Method of detection of xylanase activity
GOST R 55293-2012 Enzyme preparations for food industry. Method for determination of cellulase activity
GOST R 54330-2011 Enzyme preparations for food industry. Methods for determination of amylase activity
GOST 31487-2012 Enzyme preparations. Methods of phytase enzyme activity determination
GOST R 54330-2011(2018) Enzyme preparations for food industry. Methods for determination of amylase activity
GOST 31488-2012 Enzyme preparations. Methods of xylanase enzyme activity determination
GOST R 53046-2008 Enzyme preparation. Methods of detection of cellulasa activity
GOST 31662-2012 Enzyme preparations. Methods of cellulasa enzyme activity determination
GOST ISO 5506-2013 Pulses. Soya bean products. Determination of urease activity
GOST R 53973-2010 Enzyme preparations. Method of detection of Beta-glucanase activity
GOST R 54905-2012 Enzyme preparation. Methods of beta-glucanase enzyme activity determination
GOST 34232-2017 Honey. Methods for determination of sucrase activity, of diastase activity, of insoluble matters
GOST ISO 13082-2014 Milk and milk products. Determination of the lipase activity of pregastric lipase preparation
GOST ISO 22160-2015 Milk and milk-based drinks. Determination of alkaline phosphatase activity. Enzymatic photo-activated system (EPAS) method
GOST 13979.9-1969 Oilcakes and oilmeals. Measurement of urease activity
GOST R 52996-2008 Milk and milk products. Determination of alkaline phosphatase activity. Part 1. Fluorimetric method for milk and milk products

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Enzyme activity

GB/T 41907-2022 Assay method of enterokinase activity
GB/T 30990-2014 Determination of the activity of lysozyme
GB/T 41906-2022 Assay method of superoxide dismutase activity
GB/T 8622-1988 Method for the determination of urease activity in soya bean products
GB/T 23881-2009 Determination of feed cellulase activity.Filter paper assay method
GB/T 18634-2002 Determination of feed phytase activity--Spectrothotometric method
GB/T 18634-2009 Determination of feed phytase activity-Spectrophotometric method
GB/T 8622-2006 Determination of urease activity in soya bean products for feeds
GB/T 32131-2015 Determination of the activity of horse radish peroxidase.Colorimetric method
GB/T 5521-1989 Method for determination of alpha-amylase activity in cereal and cereal products—Colorimetric method
GB/T 5521-2008 Colorimetric method for the determination of α-amylase activity in grains and oils and their products
GB/T 5521-2008 Colorimetric method for the determination of α-amylase activity in grains and oils and their products
GB/T 5009.171-2003 Determination of the action of superoxide dismutase in health foods

BE-NBN, Enzyme activity

NBN V 21-032-1983 Milk - Determination of the phosphatase activity
NBN V 21-033-1983 Dried milk - Determination of the phosphatase activity
NBN V 21-007-1977 Determination of the phosphatase activity of butter

NL-NEN, Enzyme activity

NEN 5796-1989 Soil - Determination of urease activity
NEN 3791-1986 Quarg (fresh cheese) - Detection of phosphatase activity

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会, Enzyme activity

GB/T 34799-2017 Determination of the activity of chitinase
GB/T 34795-2017 Determination of the activity of transglutaminase
GB/T 33409-2016 Determination of the activity of beta-galactosidase—Spectrophotometric method
GB/T 35808-2018 Method for analysis of forestry biomass—Determination of cellulase activity
GB/T 33410-2016 Determination of the activity of protease K in biochemical reagents

Association Francaise de Normalisation, Enzyme activity

NF T60-901*NF ISO 5506:2018 Soya bean products - Determination of urease activity
NF V03-942:1980 Soya bean products. Determination of urease activity.
NF EN ISO 30024:2009 Aliments des animaux - Détermination de l'activité phytasique
NF ISO 5506:2018 Produits dérivés du soja - Détermination de l'activité uréasique
NF V18-224*NF EN ISO 30024:2009 Animal feeding stuffs - Determination of phytase activity
NF EN ISO 20130:2020 Qualité du sol - Mesure de l'activité enzymatique dans des échantillons de sol en utilisant des substrats colorimétriques
NF T90-385:2001 Water quality - Method for measuring the EROD enzyme activity in freshwater and saltwater fish.
XP V04-100*XP ISO/TS 17193:2012 Milk - Determination of the lactoperoxidase activity - Photometric method (Reference method)
XP ISO/TS 17193:2012 Lait - Détermination de l'activité de lactoperoxydase - Méthode photométrique (Méthode de référence)
NF EN ISO 22160:2007 Lait et boissons à base de lait - Détermination de l'activité de la phosphatase alcaline - Méthode par un système de photoactivation enzymatique
NF V04-054-2*NF EN ISO 11816-2:2016 Milk and milk products - Determination of alkaline phosphatase activity - Part 2 : fluorimetric method for cheese
NF EN ISO 11816-2:2016 Lait et produits laitiers - Détermination de l'activité de la phosphatase alcaline - Partie 2 : méthode fluorimétrique pour le fromage
NF V04-058*NF EN ISO 22160:2007 Milk and milk based drinks - Determination of alkaline phosphatase activity - Enzymatic photo-activated system (EPAS) method
NF EN ISO 23753-2:2019 Qualité du sol - Détermination de l'activité des déshydrogénases dans les sols - Partie 2 : méthode au chlorure de iodotétrazolium (INT)
NF V04-054-2:2003 Milk and milk products - Determination of alkaline phosphatase activity - Part 2 : fluorometric method for cheese.
NF EN ISO 18187:2018 Qualité du sol - Essai contact pour échantillons solides utilisant l'activité déshydrogénase de Arthrobacter globiformis
NF X31-293-2/A1:2020 Soil quality - Determination of dehydrogenases activity in soils - Part 2 : method using iodotetrazolium chloride (INT) - Amendment 1
NF X31-293-1:2011 Soil Quality - Determination of dehydrogenase activity in soils - Part 1 : method using triphenyltetrazolium chloride (TTC).
NF X31-293-2*NF EN ISO 23753-2:2019 Soil quality - Determination of dehydrogenases activity in soils - Part 2 : method using iodotetrazolium chloride (INT)
NF V04-054-1*NF EN ISO 11816-1:2013 Milk and milk products - Determination of alkaline phosphatase activity - Part 1 : fluorimetric method for milk and milk-based drinks
NF EN ISO 11816-1:2013 Lait et produits laitiers - Détermination de l'activité de la phosphatase alcaline - Partie 1: méthode fluorimétrique pour le lait et les boissons à base de lait
NF X31-293-2:2011 Soil quality - Determination of dehydrogenase activity in soils - Part 2 : method using iodotetrazolium chloride (INT).
NF EN ISO 23753-2/A1:2020 Qualité du sol - Détermination de l'activité des déshydrogénases dans les sols - Partie 2 : méthode au chlorure de iodotétrazolium (INT) - Amendement 1
NF X31-293-1*NF EN ISO 23753-1:2019 Soil quality - Determination of dehydrogenases activity in soils - Part 1 : method using triphenyltetrazolium chloride (TTC)
NF X31-293-1/A1:2020 Soil quality - Determination of dehydrogenases activity in soils - Part 1 : method using triphenyltetrazolium chloride (TTC) - Amendment 1
NF EN ISO 23753-1/A1:2020 Qualité du sol - Détermination de l'activité des déshydrogénases dans les sols - Partie 1 : méthode au chlorure de triphényltétrazolium (CTT) - Amendement 1
XP T90-722-1:2020 Qualité de l'eau - Mesures moléculaires, physiologiques et comportementales chez le gammare (crustacé amphipode) Partie 1 : dosage de l'activité enzymatique acétylcholinestérase (AChE)

GOSTR, Enzyme activity

GOST 34176-2017 Enzyme preparation. Methods of endo-в-glucanase ferment activity detection
GOST 34440-2018 Enzyme preparations for food industry. Methods for the determination of amylase activity

International Organization for Standardization (ISO), Enzyme activity

ISO 5506:1978 Soya-bean products — Determination of urease activity
ISO 5506:1988 Soya bean products; determination of urease activity
ISO/DIS 30024 Animal feeding stuffs — Determination of phytase activity
ISO 5506:2018 Soya bean products - Determination of urease activity
ISO 30024:2009 Animal feeding stuffs - Determination of phytase activity
ISO/TS 17193:2011 Milk - Determination of the lactoperoxidase activity - Photometric method (Reference method)
ISO 13082:2011 | IDF 218:2011 Milk and milk products — Determination of the lipase activity of pregastric lipase preparation
ISO 3983:1977 Cereals and cereal products — Determination of alpha-amylase activity — Colorimetric method
ISO 13082:2011 Milk and milk products - Determination of the lipase activity of pregastric lipase preparation
ISO/TS 17193:2011 | IDF/RM 208:2011 Milk — Determination of the lactoperoxidase activity — Photometric method (Reference method)
ISO/TS 4985:2023 Milk and milk products — Determination of alkaline phosphatase activity — Fluorimetric microplate method
ISO 22160:2007 | IDF 209:2007 Milk and milk-based drinks — Determination of alkaline phosphatase activity — Enzymatic photo-activated system (EPAS) method
ISO/DTS 4985 | IDF/RM 255 Milk and milk products — Determination of alkaline phosphatase activity — Fluorimetric microplate method
ISO/TS 4985:2023 | IDF/RM 255:2023 Milk and milk products — Determination of alkaline phosphatase activity — Fluorimetric microplate method
ISO 11816-2:2003 | IDF 155-2:2003 Milk and milk products — Determination of alkaline phosphatase activity — Part 2: Fluorometric method for cheese
ISO/DIS 11816-2:2016 Milk and milk products — Determination of alkaline phosphatase activity — Part 2: Fluorimetric method for cheese
ISO/PRF 11816-2:2023 Milk and milk products — Determination of alkaline phosphatase activity — Part 2: Fluorimetric method for cheese
ISO 11816-2:2016 | IDF 155-2:2016 Milk and milk products — Determination of alkaline phosphatase activity — Part 2: Fluorimetric method for cheese
ISO/TS 6090:2004|IDF/RM 82:2004 Milk and dried milk, buttermilk and buttermilk powder, whey and whey powder — Detection of phosphatase activity
ISO/TS 6090:2004 Milk and dried milk, buttermilk and buttermilk powder, whey and whey powder - Detection of phosphatase activity
ISO/TS 6090:2004|IDF/RM 082:2004 Testing of phosphatase activity in milk and milk powder, buttermilk and buttermilk powder, whey and whey powder
ISO 22160:2007 Milk and milk-based drinks - Determination of alkaline phosphatase activity - Enzymatic photo-activated system (EPAS) method
ISO 22160:2007|IDF 209:2007 Determination of alkaline phosphatase activity in milk and milk-based beverages Enzymatic photocatalytic system (EPAS) method
ISO/TS 6090:2004 | IDF/RM 82: 2004 Milk and dried milk, buttermilk and buttermilk powder, whey and whey powder — Detection of phosphatase activity
ISO 23753-2:2005 Soil quality - Determination of dehydrogenase activity in soils - Part 2: Method using iodotetrazolium chloride (INT)
ISO/CD 18187 Soil quality — Contact test for solid samples using the dehydrogenase activity of Arthrobacter globiformis
ISO 20130:2018 Soil quality - Measurement of enzyme activity patterns in soil samples using colorimetric substrates in micro-well plates
ISO/DIS 18187:2023 Soil quality — Contact test for solid samples using the dehydrogenase activity of Arthrobacter globiformis
ISO/PRF 11816-1:2023 Milk and milk products — Determination of alkaline phosphatase activity — Part 1: Fluorimetric method for milk and milk-based drinks
ISO 11816-1:2013 | IDF 155-1:2013 Milk and milk products — Determination of alkaline phosphatase activity — Part 1: Fluorimetric method for milk and milk-based drinks
ISO/DIS 11816-1:2013 Milk and milk products — Determination of alkaline phosphatase activity — Part 1: Fluorimetric method for milk and milk-based drinks
ISO 11816-1:2006 | IDF 155-1:2006 Milk and milk products — Determination of alkaline phosphatase activity — Part 1: Fluorimetric method for milk and milk-based drinks
ISO 18187:2016 Soil quality - Contact test for solid samples using the dehydrogenase activity of Arthrobacter globiformis
ISO 3356:1975 Milk and dried milk, buttermilk and buttermilk powder, whey and whey powder; Determination of phosphatase activity (Reference method)
ISO 23753-2:2019 Soil quality — Determination of dehydrogenases activity in soils — Part 2: Method using iodotetrazolium chloride (INT)
ISO/TS 22939:2019 Soil quality — Measurement of enzyme activity patterns in soil samples using fluorogenic substrates in micro-well plates
ISO/TS 22939:2010 Soil quality - Measurement of enzyme activity patterns in soil samples using fluorogenic substrates in micro-well plates
ISO 23753-1:2005 Soil quality - Determination of dehydrogenase activity in soils - Part 1: Method using triphenyltetrazolium chloride (TTC)
ISO 23753-1:2019/Amd 1:2020 Soil quality — Determination of dehydrogenases activity in soils — Part 1: Method using triphenyltetrazolium chloride (TTC) — Amendment 1
ISO/DIS 16000-22:2023 Indoor air — Part 22: Detection and quantification of fungal biomass by fungal β-N-acetylhexosaminidase enzyme activity
ISO 23753-1:2019 Soil quality — Determination of dehydrogenases activity in soils — Part 1: Method using triphenyltetrazolium chloride (TTC)
ISO 23753-2:2019/Amd 1:2020 Soil quality — Determination of dehydrogenases activity in soils — Part 2: Method using iodotetrazolium chloride (INT) — Amendment 1

国家市场监督管理总局、中国国家标准化管理委员会, Enzyme activity

GB/T 36756-2018 General requirements for activity detection of reagent enzymes
GB/T 37966-2019 Nanotechnologies—Measurement method for peroxidase-like activity of iron oxide nanoparticles

British Standards Institution (BSI), Enzyme activity

BS EN ISO 30024:2009 Animal feeding stuffs - Determination of phytase activity
BS ISO 5506:2018 Soya bean products. Determination of urease activity
23/30422776 DC BS EN ISO 30024. Animal feeding stuffs. Determination of phytase activity
BS ISO 13082:2012 Milk and milk products. Determination of the lipase activity of pregastric lipase preparation
BS ISO 13082:2011 Milk and milk products. Determination of the lipase activity of pregastric lipase preparation
PD ISO/TS 17193:2011 Milk. Determination of the lactoperoxidase activity. Photometric method (Reference method)
BS DD ISO/TS 17193:2012 Milk. Determination of the lactoperoxidase activity. Photometric method (Reference method)
PD ISO/TS 4985:2023 Milk and milk products. Determination of alkaline phosphatase activity. Fluorimetric microplate method
BS 4325-6:1989 Methods for analysis of oilseed residues. Determination of urease activity of soya bean products
BS EN ISO 23753-2:2011 Soil quality. Determination of dehydrogenase activity in soils. Method using iodotetrazolium chloride (INT)
DD ISO/TS 6090:2004 Milk and dried milk, buttermilk and buttermilk powder, whey and whey powder. Detection of phosphatase activity
BS EN ISO 22160:2007 Milk and milk-based drinks - Determination of alkaline phosphatase activity - Enzymatic photo-activated system (EPAS) method
BS EN ISO 11816-1:2006 Milk and milk products. Determination of alkaline phosphatase activity - Fluorimetric method for milk and milk-based drinks
BS EN ISO 11816-2:2016 Tracked Changes. Milk and milk products. Determination of alkaline phosphatase activity. Fluorimetric method for cheese
BS DD ISO/TS 6090:2005 Milk and dried milk, buttermilk and buttermilk powder, whey and whey powder - Detection of phosphatase activity
BS EN ISO 23753-2:2019+A1:2020 Soil quality Determination of dehydrogenases activity in soils - Method using iodotetrazolium chloride (INT)
BS EN ISO 18187:2018 Soil quality. Contact test for solid samples using the dehydrogenase activity of Arthrobacter globiformis
BS EN ISO 11816-1:2013 Milk and milk products. Determination of alkaline phosphatase activity. Fluorimetric method for milk and milk-based drinks
BS ISO 20130:2018 Soil quality. Measurement of enzyme activity patterns in soil samples using colorimetric substrates in micro-well plates
BS DD ISO/TS 22939:2010 Soil quality. Measurement of enzyme activity patterns in soil samples using fluorogenic substrates in micro-well plates
BS ISO 18187:2016 Soil quality. Contact test for solid samples using the dehydrogenase activity of $iA$ir$it$ih$ir$io$ib$ia$ic$it$ie$ir $ig$il$io$ib$ii$if$io$ir$im$ii$is
BS EN ISO 23753-1:2019+A1:2020 Soil quality. Determination of dehydrogenases activity in soils - Method using triphenyltetrazolium chloride (TTC)
BS EN ISO 20130:2020 Soil quality. Measurement of enzyme activity patterns in soil samples using colorimetric substrates in micro-well plates
22/30464203 DC BS EN ISO 11816-2. Milk and milk products. Determination of alkaline phosphatase activity - Part 2. Fluorimetric method for cheese
BS PD ISO/TS 20131-1:2018 Soil quality. Simple laboratory assessments for characterizing the denitrification in soil. Soil denitrifying enzymes activities
BS EN ISO 23753-1:2011 Soil quality. Determination of dehydrogenase activity in soil. Method using triphenyltetrazolium chloride (TTC)
PD ISO/TS 20131-1:2018 Soil quality. Simple laboratory assessments for characterizing the denitrification in soil. Soil denitrifying enzymes activities
PD ISO/TS 22939:2019 Tracked Changes. Soil quality. Measurement of enzyme activity patterns in soil samples using fluorogenic substrates in micro-well plates
22/30464199 DC BS EN ISO 11816-1. Milk and milk products. Determination of alkaline phosphatase activity - Part 1. Fluorimetric method for milk and milk-based drinks
20/30405496 DC BS EN ISO 23753-2 AMD1. Soil quality. Determination of dehydrogenases activity in soils. Part 2. Method using iodotetrazolium chloride (INT)

Danish Standards Foundation, Enzyme activity

DS 296:1984 Water quality. Inhibition of the TTC-dehydrogenase activity of activated sludge
DS/EN ISO 30024:2009 Animal feeding stuffs - Determination of phytase activity
DS/EN ISO 22160:2007 Milk and milk-based drinks - Determination of alkaline phosphatase activity - Enzymatic photo-activated system (EPAS) method
DS/EN ISO 11816-2:2003 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Flourometric method for cheese
DS/EN ISO 11816-1:2006 Milk and milk products - Determination of alkaline phosphatase activity - Part 1: Fluorimetric method for milk and milk-based drinks
DS/EN ISO 23753-2:2011 Soil Quality - Determination of dehydrogenase activity in soils - Part 2: Method using iodotetrazolium chloride (INT)
DS/EN ISO 23753-1:2011 Soil Quality - Determination of dehydrogenase activity in soil - Part 1: Method using triphenyltetrazolium chloride (TTC)

VN-TCVN, Enzyme activity

TCVN 4847-1989 Soya bean products.Determination of urease activity
TCVN 7851-2008 Milk and milk-based drinks.Determination of alkaline phosphatase activity.Enzymatic photo-activated system (EPAS) method
TCVN 6506-2-2009 Milk and milk products.Determination of alkaline phosphatase activity.Part 2: Fluorometric method of cheese
TCVN 6506-1-2015 Milk and milk products - Determination of alkaline phosphatase activity .Part 1: Fluorimetric method for milk and milk-based drinks
TCVN 6506-1-2007 Milk and milk products.Determination of alkaline phosphatase activity.Part 1: Fluorimetric method for milk and milk-based drinks

German Institute for Standardization, Enzyme activity

DIN 10750:2006 Analysis of honey - Determination of diastase activity
DIN 10750:2009 Analysis of honey - Determination of diastase activity
DIN EN ISO 30024:2009-11 Animal feeding stuffs - Determination of phytase activity (ISO 30024:2009); German version EN ISO 30024:2009
DIN 10337:1993-12 Determination of alkaline phosphatase activity in milk; enzymatic method
DIN EN ISO 30024:2023-04 Animal feeding stuffs - Determination of phytase activity (ISO/DIS 30024:2023); German and English version prEN ISO 30024:2023 / Note: Date of issue 2023-02-24*Intended as replacement for DIN EN ISO 30024 (2009-11).
DIN 10759:2016-12 Analysis of honey - Determination of saccharase activity - Siegenthaler method
DIN 10750-1:2018-09 Analysis of honey - Determination of diastase activity - Part 1: Schade method
DIN 10483-2:2002 Determination of lactoperoxidase activity in milk - Part 2: Reflectometric method
DIN 10759:2016 Analysis of honey - Determination of saccharase activity - Siegenthaler method
DIN EN ISO 22160:2007 Milk and milk-based drinks - Determination of alkaline phosphatase activity - Enzymatic photo-activated system (EPAS) method (ISO 22160:2007); English version of DIN EN ISO 22160:2007-08
DIN 10759-2:1998 Analysis of honey - Determination of saccharase activity - Part 2: Hadorn method
DIN EN ISO 22160:2007-08 Milk and milk-based drinks - Determination of alkaline phosphatase activity - Enzymatic photo-activated system (EPAS) method (ISO 22160:2007); German version EN ISO 22160:2007
DIN EN ISO 11816-2:2016-12 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Fluorimetric method for cheese (ISO 11816-2:2016); German version EN ISO 11816-2:2016 / Note: To be replaced by DIN EN ISO 11816-2 (2023-01).
DIN 10483-1:2002 Determination of lactoperoxidase activity in milk - Part 1: Photometric method (Reference method)
DIN 10759-1:1998 Analysis of honey - Determination of saccharase activity - Part 1: Siegenthaler method
DIN 10483-1:2002-08 Determination of lactoperoxidase activity in milk - Part 1: Photometric method (Reference method)
DIN 10750-2:2022-09 Analysis of honey - Determination of diastase activity - Part 2: Nitrophenol-based process
DIN ISO 23753-2:2006 Soil quality - Determination of dehydrogenase activity in soils - Part 2: Method using iodotetrazolium chloride (INT) (ISO 23753-2:2005);English version of DIN ISO 23753-2:2006-04
DIN EN ISO 18187:2018-07 Soil quality - Contact test for solid samples using the dehydrogenase activity of Arthrobacter globiformis (ISO 18187:2016); German version EN ISO 18187:2018
DIN EN ISO 30024:2009 Animal feeding stuffs - Determination of phytase activity (ISO 30024:2009); German version EN ISO 30024:2009
DIN EN ISO 20130:2021-02 Soil quality - Measurement of enzyme activity patterns in soil samples using colorimetric substrates in micro-well plates (ISO 20130:2018); German version EN ISO 20130:2020
DIN 58912-1:2021-11 Haemostaseology - Determination of the antithrombin activity - Part 1: Reference measurement procedure using a synthetic peptide substrate; Text in German and English
DIN EN ISO 11816-2:2023-01 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Fluorimetric method for cheese (ISO/DIS 11816-2:2022); German and English version prEN ISO 11816-2:2022 / Note: Date of issue 2022-11-25*Intended as replacement for DIN E...
DIN EN ISO 23753-2:2021-09 Soil quality - Determination of dehydrogenases activity in soils - Part 2: Method using iodotetrazolium chloride (INT) (ISO 23753-2:2019 + Amd 1:2020); German version EN ISO 23753-2:2019 + A1:2020
DIN EN ISO 11816-1:2014-03 Milk and milk products - Determination of alkaline phosphatase activity - Part 1: Fluorimetric method for milk and milk-based drinks (ISO 11816-1:2013); German version EN ISO 11816-1:2013 / Note: To be replaced by DIN EN ISO 11816-1 (2023-01).
DIN ISO/TS 22939:2011 Soil quality - Measurement of enzyme activity patterns in soil samples using fluorogenic substrates in micro-well plates (ISO/TS 22939:2010)
DIN EN ISO 18187:2018 Soil quality - Contact test for solid samples using the dehydrogenase activity of Arthrobacter globiformis (ISO 18187:2016)
DIN EN ISO 18187:2023-08 Soil quality - Contact test for solid samples using the dehydrogenase activity of Arthrobacter globiformis (ISO/DIS 18187:2023); German and English version prEN ISO 18187:2023 / Note: Date of issue 2023-06-30*Intended as replacement for DIN EN ISO 1818...
DIN ISO 23753-1:2006 Soil quality - Determination of dehydrogenase activity in soils - Part 1: Method using triphenyltetrazolium chloride (TTC) (ISO 23753-1:2005);English version of DIN ISO 23753-1:2006-04
DIN EN ISO 23753-1:2021-03 Soil quality - Determination of dehydrogenases activity in soils - Part 1: Method using triphenyltetrazolium chloride (TTC) (ISO 23753-1:2019 + Amd.1:2020); German version EN ISO 23753-1:2019 + A1:2020
DIN EN ISO 23753-2:2019 Soil quality - Determination of dehydrogenases activity in soils - Part 2: Method using iodotetrazolium chloride (INT) (ISO 23753-2:2019)
DIN EN ISO 11816-1:2023-01 Milk and milk products - Determination of alkaline phosphatase activity - Part 1: Fluorimetric method for milk and milk-based drinks (ISO/DIS 11816-1:2022); German and English version prEN ISO 11816-1:2022 / Note: Date of issue 2022-11-25*Intended as r...

Professional Standard - Hygiene , Enzyme activity

WS/T 419-2013 The values of enzymatic activity concentrations assigned for the reference materials
WS/T 67-1996 Blood.Determination of cholinesterase activity.Spectrophotometric method--Acetylthiocholine and dithio-bis-(nitrobenzoic acid)method

Taiwan Provincial Standard of the People's Republic of China, Enzyme activity

CNS 2770-14-1986 Method of Test for Feeds : Urease Activity Test
CNS 2770.14-1986 Method of Test for Feeds : Urease Activity Test
CNS 13569-1995 Method of Test for Grains-}zN-Amylase Activity

中华人民共和国国家卫生和计划生育委员会, Enzyme activity

WS/T 222-2002 Guideline for the measurement of catalytic concentration of clinical enzymes
WS/T 66-1996 Blood.Determination of cholinesterase activity.Spectrophotometric method--Hydroxylamine-ferric chloride method

Anhui Provincial Standard of the People's Republic of China, Enzyme activity

DB34/T 1729-2012 Analysis method of dehydrogenase activity in pit mud

Professional Standard - Agriculture, Enzyme activity

235药典三部-2010 Appendix IX IXN Human Thrombin Activity Test Method
GB 8622-1988 Determination method of urease activity in soybean products
302药典三部-2020 Bioassay 3422 Human thrombin activity assay
258药典四部-2015 3400 Bioassay 3422 Human thrombin activity assay
251药典四部-2020 3400 Bioassay 3422 Human thrombin activity assay
277药典三部-2015 Bioassay 3422 Human Thrombin Activity Test Method 117
NY/T 4306-2023 Determination of activity of papaya and bromelain by ultraviolet spectrophotometry

RO-ASRO, Enzyme activity

STAS SR 13421-1999 Enzyme preparations for confectionery industry. Invertase. Enzyme activity determination
STAS SR 13422-1999 Enzyme preparations for zootechny - Microbial phytase -Enzyme activity determination
STAS SR 13357-1996 Enzyme preparatiore for beer industry. Bacterial beta-glucanase. Enzyme activity determination
STAS SR 13265-1994 Enzyme preparations for alcohol and starch industry. Bacterial alpha-amylase. Enzyrne activity determination
STAS SR 13264-1995 Enzyme preparations for alcohol and starch industry. Fungal amyloglucosidase. Enzyme activity determination
STAS SR 13356-1996 Enzyme preparations for food, pharmaceutical, textile-leather and detergent industry. Bacterial proteinase. Enzyme activity determination
STAS SR 13390-1997 Enzyme preparations for juices, wine and canned vegetables and frults industry. Microbial Pectinase. Enzyme activity determination
STAS SR 13391-1997 Enzyme preparations for ethanol industry (cellulosic resources), juices and beer industry. C1 - Cellulase. Enzyme activity determination
STAS SR 13425-1999 Enzyme preparation for ethanol industry (from cellulosic resources) and juices industry Cx - Cellulase. Enzyme activity determination
STAS SR 13423-1999 Enzyme preparations for food industry -Peroxidase - Enzyme activity determination
STAS SR 13424-1999 Enzyme preparations for food industry Papain - Enzyme activity determination

Group Standards of the People's Republic of China, Enzyme activity

T/CAIA SHO19-2022 Acetylcholinesterase-Determination of activity -Spectrophotometric method
T/SHRH 015-2018 Cosmetics -Tyrosinase Activity Inhibition Test Method
T/CSTM 01090-2022 Acetylcholinesterase-Determination of activity-Spectrophotometric method
T/CIFST 008-2022 Determination of the lactoperoxidase activity in milk— Colorimetric method
T/NAIA 012-2020 Determination of Soil Phosphatase Activity by Colorimetric Method of Disodium Phenyl Phosphate
T/TDSTIA 008-2019 Determination of Alkaline Phosphatase Activity in Pasteurized Milk by Luminescent Method
T/NAIA 013-2020 Determination of Soil Catalase Activity by Potassium Permanganate Titration
T/NAIA 011-2020 Determination of Soil Urease Activity Sodium Phenate-Sodium Hypochlorite Colorimetric Method
T/SBX 047-2021 Determination of α-Galactosidase Activity in Human Peripheral Blood Leukocytes by Microplate Reader Assay
T/NAIA 010-2020 Determination of Soil Sucrase Activity by 3,5-Dinitrosalicylic Acid Colorimetric Method
T/AHPCA 050-2023 Cosmetic whitening efficacy testing method (tyrosinase activity test method)
T/SBX 049-2021 Determination of β-glucocerebrosidase Activity in Human Peripheral Blood Leukocytes by Microplate Reader Assay
T/SBX 048-2021 Determination of α-L-iduronidase Activity in Human Peripheral Blood Leukocytes by Microplate Reader Assay
T/GDCA 006-2021 Cosmetic ingredients-Tyrosinase activity inhibition test method (in vitro)
T/QGCML 1872-2023

European Committee for Standardization (CEN), Enzyme activity

EN ISO 30024:2009 Animal feeding stuffs - Determination of phytase activity
prEN ISO 30024 Animal feeding stuffs - Determination of phytase activity (ISO/DIS 30024:2023)
EN ISO 22160:2007 Milk and milk-based drinks - Determination of alkaline phosphatase activity - Enzymatic photo-activated system (EPAS) method
EN ISO 20130:2020 Soil quality - Measurement of enzyme activity patterns in soil samples using colorimetric substrates in micro-well plates (ISO 20130:2018)
EN ISO 11816-2:2016 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Fluorimetric method for cheese
prEN ISO 18187 rev Soil quality - Contact test for solid samples using the dehydrogenase activity of Arthrobacter globiformis
prEN ISO 11816-2 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Fluorimetric method for cheese (ISO/DIS 11816-2:2022)
EN ISO 23753-2:2011 Soil Quality - Determination of dehydrogenase activity in soils - Part 2: Method using iodotetrazolium chloride (INT)
prEN ISO 11816-1 Milk and milk products - Determination of alkaline phosphatase activity - Part 1: Fluorimetric method for milk and milk-based drinks (ISO/DIS 11816-1:2022)
EN ISO 23753-1:2011 Soil Quality - Determination of dehydrogenase activity in soil - Part 1: Method using triphenyltetrazolium chloride (TTC) (ISO 23753-1:2005)
EN ISO 23753-2:2019/A1:2020 Soil quality - Determination of dehydrogenases activity in soils - Part 2: Method using iodotetrazolium chloride (INT) - Amendment 1 (ISO 23753-2:2019/Amd 1:2020)

Lithuanian Standards Office , Enzyme activity

LST EN ISO 30024:2009 Animal feeding stuffs - Determination of phytase activity (ISO 30024:2009)
LST EN ISO 22160:2007 Milk and milk-based drinks - Determination of alkaline phosphatase activity - Enzymatic photo-activated system (EPAS) method (ISO 22160:2007)
LST EN ISO 11816-2:2003 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Fluorometric method for cheese (ISO 11816-2:2003)
LST EN ISO 11816-1:2006 Milk and milk products - Determination of alkaline phosphatase activity - Part 1: Fluorimetric method for milk and milk-based drinks (ISO 11816-1:2006)
LST EN ISO 11816-1:2014 Milk and milk products - Determination of alkaline phosphatase activity - Part 1: Fluorimetric method for milk and milk-based drinks (ISO 11816-1:2013)
LST EN ISO 23753-2:2011 Soil Quality - Determination of dehydrogenase activity in soils - Part 2: Method using iodotetrazolium chloride (INT) (ISO 23753-2:2005)
LST EN ISO 23753-1:2011 Soil Quality - Determination of dehydrogenase activity in soil - Part 1: Method using triphenyltetrazolium chloride (TTC) (ISO 23753-1:2005)

AENOR, Enzyme activity

UNE-EN ISO 30024:2010 Animal feeding stuffs - Determination of phytase activity (ISO 30024:2009)
UNE-EN ISO 22160:2007 Milk and milk-based drinks - Determination of alkaline phosphatase activity - Enzymatic photo-activated system (EPAS) method (ISO 22160:2007)
UNE-EN ISO 11816-2:2017 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Fluorimetric method for cheese (ISO 11816-2:2016)
UNE 34832:1986 MILK AND MILK POWDER, BUTTERMILK AND BUTTERMILK POWDER, WHEY AND WHEY POWER. DETERMINATION OF PHOSPHATASE ACTIVITY. ROUTINE METHOD.
UNE-EN ISO 11816-1:2014 Milk and milk products - Determination of alkaline phosphatase activity - Part 1: Fluorimetric method for milk and milk-based drinks (ISO 11816-1:2013)

Professional Standard - Commodity Inspection, Enzyme activity

SN/T 0800.4-1999 Cereals and feedstuffs for import and export.Method for the determination of urease activity
SN/T 0800.4-2015 Inspection of cereals and feedstuffs for export.Part 4: Determination of urease activity

HU-MSZT, Enzyme activity

MNOSZ 20516-1955

AR-IRAM, Enzyme activity

IRAM 25 704-1963

KE-KEBS, Enzyme activity

KS 05-31-1977 KENYA STANDARD DETERMINATION OF PHOSPHATASE ACTIVITY IN MILK AND MILK PRODUCTS

TR-TSE, Enzyme activity

TS 3565-1981 CEREALS AND CEREAL PRODUCTS — DETERMINATION OF ALPHA — AMYLASE ACTIVITY —COLORIMETRIC METHOD

International Dairy Federation (IDF), Enzyme activity

IDF/RM 208-2011 Milk - Determination of the Lactoperoxidase Activity - Photometric Method (Reference Method)
IDF 209-2007 Milk and milk-based drinks -- Determination of alkaline phosphatase activity -- Enzymatic photo-activated system (EPAS) method
IDF 155-2-2003 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Fluorometric method for cheese
IDF/RM 82-2004 Milk and dried milk, buttermilk and buttermilk powder, whey and whey powder - Detection of phosphatase activity
IDF 155-1-2006 Milk and milk products - Determination of alkaline phosphatase activity - Part 1: Fluorimetric method for milk and milk-based drinks
IDF 155-1-2013 Milk and milk products - Determination of alkaline phosphatase activity - Part 1: Fluorimetric method for milk and milk-based drinks

未注明发布机构, Enzyme activity

ISO/TS 17193:2011/Amd 1:2012 Milk — Determination of the lactoperoxi dase activity — Photometric method (Reference method)

农业农村部, Enzyme activity

NY/T 3799-2020 Luminescent method for determination of alkaline phosphatase activity in raw milk and its products

Henan Provincial Standard of the People's Republic of China, Enzyme activity

DB41/T 1615-2018 Technical regulations for the detection of cellulase, xylanase, laccase and protease activities of edible fungi

CU-NC, Enzyme activity

NC 78-11-18-1984 Milk and Milk Derivatives Testing Method. Determination of Phosphatase Activity

IN-BIS, Enzyme activity

Shandong Provincial Standard of the People's Republic of China, Enzyme activity

DB37/T 577-2005 Determination of Phytase Activity at 6-site of Feed Additives Spectrophotometric Method

CZ-CSN, Enzyme activity

CSN 57 0105-11-2003 Testing methods for dried milk products and codensed milk - Part 11: Determination of phosphatase activity
CSN 46 7092-28-1998 Testing methods for feeding stuffs - Part 28: Determination of the urease activity in the products containing soya

UY-UNIT, Enzyme activity

UNIT 636-1982

CEN - European Committee for Standardization, Enzyme activity

EN ISO 11816-2:2003 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Fluorometric method for cheese
EN ISO 23753-2:2019 Soil quality - Determination of dehydrogenases activity in soils - Part 2: Method using iodotetrazolium chloride (INT)
EN ISO 18187:2018 Soil quality - Contact test for solid samples using the dehydrogenase activity of Arthrobacter globiformis
EN ISO 23753-1:2019 Soil quality - Determination of dehydrogenases activity in soils - Part 1: Method using triphenyltetrazolium chloride

Korean Agency for Technology and Standards (KATS), Enzyme activity

KS I ISO 23753-2-2006(2016) Soil quality－Determination of dehydrogenase activity in soils－ Part 2：Method using iodotetrazolium chloride(INT)
KS I ISO 23753-2:2006 Soil quality－Determination of dehydrogenase activity in soils－ Part 2：Method using iodotetrazolium chloride(INT)
KS I ISO 23753-1-2006(2016) Soil quality－Determination of dehydrogenase activity in soils－ Part 1：Method using triphenyltetrazolium chloride(TTC)
KS I ISO 23753-1:2021 Soil quality — Determination of dehydrogenases activity in soils —Part 1: Method using triphenyltetrazolium chloride(TTC)
KS H ISO 11816-1-2006(2016) Milk and milk products－Determination of alkaline phosphatase activity－Part 1：Fluorimetric method for milk and milk-based drinks
KS H ISO 11816-1:2021 Milk and milk products —Determination of alkaline phosphatase activity —Part 1: Fluorimetric method for milk and milk-based drinks
KS I ISO 23753-1:2006 Soil quality－Determination of dehydrogenase activity in soils－ Part 1：Method using triphenyltetrazolium chloride(TTC)
KS I ISO 23753-2:2021 Soil quality — Determination of dehydrogenases activity in soils —Part 2: Method using iodotetrazolium chloride(INT)

PT-IPQ, Enzyme activity

NP 634-1985

ES-UNE, Enzyme activity

UNE-EN ISO 18187:2018 Soil quality - Contact test for solid samples using the dehydrogenase activity of Arthrobacter globiformis (ISO 18187:2016) (Endorsed by Asociación Española de Normalización in April of 2018.)
UNE-EN ISO 20130:2020 Soil quality - Measurement of enzyme activity patterns in soil samples using colorimetric substrates in micro-well plates (ISO 20130:2018) (Endorsed by Asociación Española de Normalización in June of 2020.)
UNE-EN ISO 23753-2:2019 Soil quality - Determination of dehydrogenases activity in soils - Part 2: Method using iodotetrazolium chloride (INT) (ISO 23753-2:2019) (Endorsed by Asociación Española de Normalización in May of 2019.)
UNE-EN ISO 23753-1:2019 Soil quality - Determination of dehydrogenases activity in soils - Part 1: Method using triphenyltetrazolium chloride (TTC) (ISO 23753-1:2019) (Endorsed by Asociación Española de Normalización in May of 2019.)
UNE-EN ISO 23753-2:2019/A1:2020 Soil quality - Determination of dehydrogenases activity in soils - Part 2: Method using iodotetrazolium chloride (INT) - Amendment 1 (ISO 23753-2:2019/Amd 1:2020) (Endorsed by Asociación Española de Normalización in January of 2021.)
UNE-EN ISO 23753-1:2019/A1:2020 Soil quality - Determination of dehydrogenases activity in soils - Part 1: Method using triphenyltetrazolium chloride (TTC) - Amendment 1 (ISO 23753-1:2019/Amd 1:2020) (Endorsed by Asociación Española de Normalización in January of 2021.)

PL-PKN, Enzyme activity

PN-EN ISO 11816-2-2016-10 P Milk and milk products -- Determination of alkaline phosphatase activity -- Part 2: Fluorimetric method for cheese (ISO 11816-2:2016)
PN-EN ISO 20130-2020-11 E Soil quality -- Measurement of enzyme activity patterns in soil samples using colorimetric substrates in micro-well plates (ISO 20130:2018)

IT-UNI, Enzyme activity

UNI EN ISO 20130:2020 Soil quality - Measurement of enzyme activity patterns in soil samples using colorimetric substrates in micro-well plates
UNI EN ISO 23753-2:2021 Soil quality - Determination of dehydrogenases activity in soils - Part 2: Method using iodotetrazolium chloride (INT)
UNI EN ISO 23753-1:2021 Soil quality - Determination of dehydrogenases activity in soils - Part 1: Method using triphenyltetrazolium chloride (TTC)

KR-KS, Enzyme activity

KS I ISO 23753-1-2021 Soil quality — Determination of dehydrogenases activity in soils —Part 1: Method using triphenyltetrazolium chloride(TTC)
KS H ISO 11816-1-2021 Milk and milk products —Determination of alkaline phosphatase activity —Part 1: Fluorimetric method for milk and milk-based drinks
KS I ISO 23753-2-2021 Soil quality — Determination of dehydrogenases activity in soils —Part 2: Method using iodotetrazolium chloride(INT)

ES-AENOR, Enzyme activity

UNE 81-592-1991 Biological control. Determination of delta-aminolevulinic dehidratase(ALA-D) activity in blood. Spectrometric method

AT-ON, Enzyme activity

OENORM EN ISO 20130:2020 Soil quality - Measurement of enzyme activity patterns in soil samples using colorimetric substrates in micro-well plates (ISO 20130:2018)

CH-SNV, Enzyme activity

SN EN ISO 20130:2020 Soil quality - Measurement of enzyme activity patterns in soil samples using colorimetric substrates in micro-well plates (ISO 20130:2018)

Standard Association of Australia （SAA）, Enzyme activity

AS 2300.1.10:2008 Methods of chemical and physical testing for the dairying industry Method 1.10: General methods and principles— Determination of phosphatase activity