Method for Determining Enzyme Activity

Method for Determining Enzyme Activity, Total:483 items.

In the international standard classification, Method for Determining Enzyme Activity involves: Microbiology, Animal feeding stuffs, Biology. Botany. Zoology, Fuels, Vocabularies, Sugar. Sugar products. Starch, Products of the chemical industry, Milk and milk products, Laboratory medicine, Cereals, pulses and derived products, Medical sciences and health care facilities in general, Optics and optical measurements, General methods of tests and analysis for food products, Food products in general, Farming and forestry, Meat, meat products and other animal produce, Soil quality. Pedology, Water quality, Terminology (principles and coordination), Analytical chemistry, Construction materials, Measurement of volume, mass, density, viscosity, Cans. Tins. Tubes, Plastics, Inorganic chemicals, Coals, Power stations in general.

Professional Standard - Business, Method for Determining Enzyme Activity

SB/T 10317-1999 Measurement of proteinase activity

RU-GOST R, Method for Determining Enzyme 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 R 54905-2012 Enzyme preparation. Methods of beta-glucanase enzyme activity determination
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 R 53360-2009 Enzyme preparation. Methods of detection of phytase activity
GOST R 54386-2011 Honey. Methods for determination of sucrase activity, of diastase activity, of insoluble matter
GOST R 55979-2014 Enzyme preparations for food industry. Methods for determination of pectat- and pectin-lyaze activities
GOST R 53974-2010 Enzyme preparations for food industry. Method for determination of proteolitic activity
GOST R 53973-2010 Enzyme preparations. Method of detection of Beta-glucanase activity
GOST ISO 22160-2015 Milk and milk-based drinks. Determination of alkaline phosphatase activity. Enzymatic photo-activated system (EPAS) method
GOST 34232-2017 Honey. Methods for determination of sucrase activity, of diastase activity, of insoluble matters
GOST 12039-1982 Seed of farm crops. Methods for determination of viability
GOST 23231-2016 Cooked sausage items and cooked meat products. Method for determination of residual activity of acid phosphatase
GOST R 51228-1998 Cereals and cereal products. Determination of alpha-amylase activity. Colorimetric method
GOST 33588-2015 Activated carbon. Standard method for determination of adsorptive capacity
GOST 31653-2012 Feedstuffs. Method of immunoenzyme mycotoxin determination
GOST 13056.7-1993 Seed of trees and shrubs. Methods for determination of viability
GOST 13056.7-1968 Seeds of forest and shrub species. Methods for determination of viability
GOST 18261-1972 Active carbon. Method for determination of protective action time by etil chloride
GOST 33618-2015 Activated carbon. Method for determination of iodine number
GOST R 52996-2008 Milk and milk products. Determination of alkaline phosphatase activity. Part 1. Fluorimetric method for milk and milk products
GOST R 50595-1993 Surface active agents. Method for determination of biodegradability in aquaous medium
GOST 12596-1967 Activated carbons. Method for the determination of ash content
GOST 25094-2015 Active mineral additions for cements. Method of activity determination
GOST 33585-2015 Activated carbon. Standard test method for determination of butane activity
GOST 30828-2002 Anionic surface-active agents. Methods for determination of active matter
GOST 33584-2015 Activated carbon. Standard test method for determination of carbon tetrachloride activity
GOST 31857-2012 Drinking water. Methods for determination of surfactants content
GOST R 51211-1998 Drinking water. Methods for determination of surfactants
GOST 33587-2015 Activated carbon. Standard method for determination of adsorptive capacity for adsorbates at trace concentrations
GOST 33578-2015 Activated carbon. Standard test method for determination of pH
GOST R 50551-1993 Goods of household chemistry. Method for the determination of active chlorine
GOST 32386-2013 Goods of household chemistry. Method for determination of active chlorine
GOST R 51463-1999 Rennet caseins and caseinates. Method for determination of ASH content
GOST 24596.5-2015 Feed phosphates. Method for determination of hydrogen ions activity value

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, Method for Determining Enzyme Activity

GB/T 34800-2017 Detection method of activity and impurity of proteinase K
GB/T 34222-2017 Determination of the activity of ribonuclease
GB/T 34801-2017 Determination of the activity of desoxyribonuclease
GB/T 35808-2018 Method for analysis of forestry biomass—Determination of cellulase activity
GB/T 5550-2016 Surface active agents—Determination of dispersing power

国家能源局, Method for Determining Enzyme Activity

NB/T 13005-2016 Cellulase enzyme activity determination method for biofuel ethanol production

Group Standards of the People's Republic of China, Method for Determining Enzyme Activity

T/CBPIA 0002-2022 Determination of Heparanase Activity Spectrophotometric Method
T/CBPIA 0003-2022 Determination of the activity of chondroitin sulfate lyase by spectrophotometry
T/SBX 047-2021 Determination of α-Galactosidase Activity in Human Peripheral Blood Leukocytes by Microplate Reader Assay
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/CSTM 00198-2021 Graphene quantum dots—Determination of enzyme-like activities — Ultraviolet-visible spectrophotometry
T/CIFST 008-2022 Determination of the lactoperoxidase activity in milk— Colorimetric method
T/NAIA 013-2020 Determination of Soil Catalase Activity by Potassium Permanganate Titration
T/NAIA 012-2020 Determination of Soil Phosphatase Activity by Colorimetric Method of Disodium Phenyl Phosphate
T/HBFIA 0037-2023 Enzyme substrate method for determination of Legionella pneumophila in drinking water
T/TDSTIA 008-2019 Determination of Alkaline Phosphatase Activity in Pasteurized Milk by Luminescent Method
T/NAIA 011-2020 Determination of Soil Urease Activity Sodium Phenate-Sodium Hypochlorite Colorimetric Method
T/NAIA 010-2020 Determination of Soil Sucrase Activity by 3,5-Dinitrosalicylic Acid Colorimetric Method

VN-TCVN, Method for Determining Enzyme Activity

TCVN 5268-2008 Honey.Determination of diastatic 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 6506-1-2007 Milk and milk products.Determination of alkaline phosphatase activity.Part 1: Fluorimetric method for milk and milk-based drinks
TCVN 6506-1-2015 Milk and milk products - Determination of alkaline phosphatase activity .Part 1: Fluorimetric method for milk and milk-based drinks

Professional Standard - Agriculture, Method for Determining Enzyme Activity

147药典四部-2020 1200 Biological activity assay 1202 Penicillinase and its activity assay
159药典四部-2015 1200 Biological activity assay 1202 Penicillinase and its activity assay
860兽药典一部-2015 Appendix Contents 1200 Biological activity assay 1202 Penicillinase and its activity assay
2371药典二部-2010 Appendix Ⅺ B Penicillinase and its activity assay
GB 8622-1988 Determination method of urease activity in soybean products
NY/T 912-2004 Determination of cellulase activity in feed additives-Spetrothoetric method
NY/T 4362-2023 Determination of Feed Additive Keratinase Activity Spectrophotometric Method
NY/T 911-2004 Determination of β-glucanase activity in feed additives-Spetrothoetric method
NY/T 4361-2023 Determination of Feed Additive α-Galactosidase Activity Spectrophotometric Method
NY/T 801-2004 Method for determination of alkaline phosphatase activity in raw milk and its products
NY/T 4306-2023 Determination of activity of papaya and bromelain by ultraviolet spectrophotometry
GB/T 14933-1994 Enzyme-linked immunosorbent assay (ELISA) for T-2 toxin in wheat

Anhui Provincial Standard of the People's Republic of China, Method for Determining Enzyme Activity

DB34/T 2562-2015 Daqu esterase activity detection enzyme-linked immunoassay (ELISA)

GOSTR, Method for Determining Enzyme Activity

GOST 34440-2018 Enzyme preparations for food industry. Methods for the determination of amylase activity
GOST 34430-2018 Enzyme preparations for food industry. Method for the determination of proteolitic activity
GOST 17218-1971 Active carbons. Method for determination of protective action time by benzene

GOST, Method for Determining Enzyme Activity

GOST R 71137-2023 Enzyme preparations for the food industry. Method for determining phospholipolytic activity
GOST R 71140-2023 Enzyme preparations for the food industry. Method for determining mannanase activity
GOST R 71138-2023 Enzym epreparations for the food industry. Method for determining milk-clotting activity
GOST R 71139-2023 Enzyme preparations for the food industry. Method for determining lipolytic activity
GOST 34812-2021 Food fish products. Methods for evaluation of viability of the helminth larvae

Hebei Provincial Standard of the People's Republic of China, Method for Determining Enzyme Activity

DB13/T 1095-2009 Determination of α-amylase activity in enzyme preparations for feed - spectrophotometric method
DB13/T 1091-2009 Determination of acid protease activity in enzyme preparations for feed - spectrophotometric method
DB13/T 1090-2009 Determination of xylanase activity in enzyme preparations for feed - spectrophotometric method

Professional Standard - Chemical Industry, Method for Determining Enzyme Activity

HG/T 4657-2014 Textile dyeing and finishing auxiliaries.Catalase.Determination of enzyme activity
HG/T 2575-1994 Determination of wetting power of surfactants by immersion method

Jilin Provincial Standard of the People's Republic of China, Method for Determining Enzyme Activity

DB22/T 1819-2013 Spectrophotometric method for the determination of acid protease activity in enzyme preparations for feed

Association Francaise de Normalisation, Method for Determining Enzyme Activity

NF EN ISO 22160:2007 Milk and milk-based beverages - Determination of alkaline phosphatase activity - Enzymatic photoactivation system method
XP V04-100*XP ISO/TS 17193:2012 Milk - Determination of the lactoperoxidase activity - Photometric method (Reference method)
XP ISO/TS 17193:2012 Milk - Determination of lactoperoxidase activity - Photometric method (Reference method)
NF T90-385:2001 Water quality - Method for measuring the EROD enzyme activity in freshwater and saltwater fish.
NF V04-058*NF EN ISO 22160:2007 Milk and milk based drinks - Determination of alkaline phosphatase activity - Enzymatic photo-activated system (EPAS) method
XP ISO/TS 4985:2023 Milk and dairy products - Determination of alkaline phosphatase activity - Fluorimetric microplate method
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 X31-293-2:2011 Soil quality - Determination of dehydrogenase activity in soils - Part 2 : method using iodotetrazolium chloride (INT).
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 Milk and dairy products - Determination of alkaline phosphatase activity - Part 2: fluorimetric method for cheese
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 V04-054-1:2006 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 Milk and milk products - Determination of alkaline phosphatase activity - Part 1: fluorometric method for milk and milk-based beverages
NF EN ISO 14637:2007 Milk - Determination of the urea content - Enzymatic method by measuring differential pH (Reference method)
NF V04-054-2:2003 Milk and milk products - Determination of alkaline phosphatase activity - Part 2 : fluorometric method for cheese.
NF EN ISO 23753-2:2019 Soil quality - Determination of dehydrogenase activity in soils - Part 2: iodotetrazolium chloride (INT) method
NF ISO 9101:1988 Surfactants - Determination of interfacial tension - Drop volume method
NF V04-060*NF EN ISO 14637:2007 Milk - Determination of urea content - Enzymatic method using difference in pH (Reference method)
NF EN 14210:2004 Surfactants - Determination of the interfacial tension of surfactant solutions by the ring or caliper method
NF T73-406*NF EN 12728:2000 Surface active agents - Determination of foaming power - Perforated disc beating method
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 ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method)
NF X31-293-2/A1:2020 Soil quality - Determination of dehydrogenases activity in soils - Part 2 : method using iodotetrazolium chloride (INT) - Amendment 1

SCC, Method for Determining Enzyme Activity

BS 3624:1963 Method for the determination of the milk coagulating power of rennet
NS-EN ISO 22160:2007 Milk and milk-based drinks — Determination of alkaline phosphatase activity — Enzymatic photo-activated system (EPAS) method (ISO 22160:2007)
DANSK DS/EN ISO 22160:2007 Milk and milk-based drinks - Determination of alkaline phosphatase activity - Enzymatic photo-activated system (EPAS) method
UNE 34878:1986 PASTEURIZED STABILIZED CHEESE. DETERMINATION OF THE PHOSPHATASE ACTIVITY. REFERENCE METHOD.
NZS 8311:1970 Method for the determination of the relative milk-coagulating power of rennet solutions
BS 4325-6:1980 Methods for analysis of oilseed residues-Determination of urease activity in soya bean products
BS DD ISO/TS 17193:2011 Milk. Determination of the lactoperoxidase activity. Photometric method (Reference method)
BS PD ISO/TS 17193:2011 Milk. Determination of the lactoperoxidase activity. Photometric method (Reference method)
DIN 10750-1 E:2017 Draft Document - Analysis of honey - Determination of diastase activity - Part 1: Schade method
DIN 10750-1:2018 Analysis of honey - Determination of diastase activity - Part 1: Schade method
BS EN ISO 23753-2:2019 Soil quality. Determination of dehydrogenases activity in soils-Method using iodotetrazolium chloride (INT)
BS 4317-14:1980 Methods of test for cereals and pulses-Determination of alpha-amylase activity in cereals and cereal products (colorimetric method)
AENOR UNE-EN ISO 11816-2:2017 Milk and dairy products. Determination of alkaline phosphatase activity. Part 2: Fluorimetric method for cheese. (ISO 11816-2:2016).
BS EN ISO 23753-1:2019 Soil quality. Determination of dehydrogenases activity in soils-Method using triphenyltetrazolium chloride (TTC)
DANSK DS/EN ISO 23753-2:2011 Soil Quality - Determination of dehydrogenase activity in soils - Part 2: Method using iodotetrazolium chloride (INT)
DANSK DS/EN ISO 11816-2:2016 Milk and milk products – Determination of alkaline phosphatase activity – Part 2: Fluorimetric method for cheese
DANSK DS/EN ISO 23753-1:2011 Soil Quality - Determination of dehydrogenase activity in soil - Part 1: Method using triphenyltetrazolium chloride (TTC)
DIN 38412-3 E:2008 Draft Document - German standard methods for the examination of water, waste water and sludge - Bio-assays (group L) - Part 3: Determination of the dehydrogenase activity (TTC-Test) (L 3)
DIN EN ISO 11816-1 E:2012 Draft Document - Milk and milk products - Determination of alkaline phosphatase activity - Part 1: Fluorimetric method for milk and milk-based drinks (ISO/DIS 11816-1:2012); German version prEN ISO 11816-1:2012
DANSK DS/EN ISO 14637:2007 Milk - Determination of urea content - Enzymatic method using difference in pH (Reference method)
NS-EN ISO 23753-2:2011 Soil Quality — Determination of dehydrogenase activity in soils — Part 2: Method using iodotetrazolium chloride (INT) (ISO 23753-2:2005)
NS-EN ISO 23753-2:2019 Soil quality — Determination of dehydrogenases activity in soils — Part 2: Method using iodotetrazolium chloride (INT) (ISO 23753-2:2019)
DANSK DS/ISO 23753-2/AMD 1:2020 Soil quality – Determination of dehydrogenases activity in soils – Part 2: Method using iodotetrazolium chloride (INT) – Amendment 1
BS ISO 14637:2004 Milk. Determination of urea content. Enzymatic method using change in pH (Reference method)
NS-EN 14210:2003 Surface active agents — Determination of interfacial tension of solutions of surface active agents by the stirrup or ring method
DANSK DS/EN ISO 11816-1:2013 Milk and milk products - Determination of alkaline phosphatase activity - Part 1: Fluorimetric method for milk and milk-based drinks
UNE-EN ISO 11816-2:2003 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Fluorometric method for cheese (ISO 11816-2:2003)
NS-EN 12728:1999 Surface active agents — Determination of foaming power — Perforated disc beating method
NS-EN ISO 11816-2:2016 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Fluorimetric method for cheese (ISO 11816-2:2016)
NS-EN ISO 11816-2:2003 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Fluorometric method for cheese (ISO 11816-2:2003)
NS-EN ISO 23753-1:2011 Soil Quality — Determination of dehydrogenase activity in soil — Part 1: Method using triphenyltetrazolium chloride (TTC) (ISO 23753-1:2005)
NS-EN ISO 23753-1:2019 Soil quality - Determination of dehydrogenases activity in soils - Part 1: Method using triphenyltetrazolium chloride (TTC) (ISO 23753-1:2019)
DANSK DS/ISO 23753-1/AMD 1:2020 Soil quality – Determination of dehydrogenases activity in soils – Part 1: Method using triphenyltetrazolium chloride (TTC) – Amendment 1
DANSK DS/EN 14210:2004 Surface active agents - Determination of interfacial tension of solutions of surface active agents by the stirrup or ring method
DIN EN ISO 23753-2 E:2018 Draft Document - Soil quality - Determination of dehydrogenase activity in soils - Part 2: Method using iodotetrazolium chloride (INT) (ISO/DIS 23753-2:2017); German and English version prEN ISO 23753-2:2017
DANSK DS/EN 12728:2001 Surface active agents - Determination of foaming power - Perforated disc beating method
DIN 58909-1 E:2018 Draft Document - Haemostaseology - Determination of factor VIII coagulant activity (F VIII C) - Part 1: Reference measurement procedure for the one-stage method; Text in German and English
NS-EN ISO 14637:2006 Milk — Determination of urea content — Enzymatic method using difference in pH (Reference method) (ISO 14637:2004)
AS 1792:1976 Method for determining the biodegradability of surfactants

German Institute for Standardization, Method for Determining Enzyme Activity

DIN 10337:1993-12 Determination of alkaline phosphatase activity in milk; enzymatic 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 58908:2000 Haemostaseology - Determination of activated partial thromboplastin time (APTT) - Reference measurement procedure
DIN 58924:2022-05 Haemostaseology - Reference method for the determination of the collagen binding acitvity of the VWF; Text in German and English
DIN 10759:2016-12 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 10750-1:2018-09 Analysis of honey - Determination of diastase activity - Part 1: Schade method
DIN 58908:2015 Haemostaseology - Determination of activated partial thromboplastin time (APTT) - Reference measurement procedure; Text in German and English
DIN 10759:2016 Analysis of honey - Determination of saccharase activity - Siegenthaler method
DIN 10759-2:1998 Analysis of honey - Determination of saccharase activity - Part 2: Hadorn method
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 EN ISO 11816-2:2003 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Fluorometric method for cheese (ISO 11816-2:2003); German version EN ISO 11816-2:2003
DIN 10483-1:2002-08 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 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 58914-1:2000 Haemostaseology - Determination of thrombin time - Part 1: Reference measurement procedure for the determination in plasma from citrated venous blood
DIN 58910-4:2000 Haemostaseology - Determination of thromboplastin (prothrombin) time - Part 4: Reference measurement procedure for the determination in capillary blood
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 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 58909-1:2020-04 Haemostaseology - Determination of factor VIII coagulant activity (FVIII:C) - Part 1: Reference measurement procedure for the one-stage method; Text in German and English
DIN 58910-2:2000 Haemostaseology - Determination of thromboplastin (prothrombin) time - Part 2: Reference measurement procedure for the determination in citrated venous blood
DIN EN ISO 14637:2007-03 Milk - Determination of urea content - Enzymatic method using difference in pH (Reference method) (ISO 14637:2004); German version EN ISO 14637:2006
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 58910-3:2000 Haemostaseology - Determination of the thromboplastin (prothrombin) time - Part 3: Reference measurement procedure for the determination in citrated capillary blood
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 58901-1:2000-03 Haemostaseology - Determination of factor VII coagulant activity (F VII C) - Part 1: Reference measurement procedure for the one-stage method
DIN 58907-1:2000-03 Haemostaseology - Determination of factor IX coagulant activity (F IX C) - Part 1: Reference measurement procedure for the one-stage method
DIN 58910-1:2000 Haemostaseology - Determination of thromboplastin (prothrombin) time - Part 1: Reference measurement procedure for the determination in plasma from citrated venous blood
DIN 58910-1:2016 Haemostaseology - Determination of thromboplastin (prothrombin) time - Part 1: Reference measurement procedure for the determination in plasma from citrated venous blood; Text in German and English
DIN 58913-1:2000-03 Haemostaseology - Determination of factor II coagulant activity (F II C) and factor X coagulant activity (F X C) - Part 1: Reference measurement procedure for the one-stage method
DIN EN 14210:2004-03 Surface active agents - Determination of interfacial tension of solutions of surface active agents by the stirrup or ring method; German version EN 14210:2003
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...
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 12728:2000 Surface active agents - Determination of foaming power - Perforated disc beating method; German version EN 12728:1999
DIN EN 12728:2000-01 Surface active agents - Determination of foaming power - Perforated disc beating method; German version EN 12728:1999
DIN 53902:2016 Testing of surface active agents - Determination of foaming power - Modified Ross-Miles-method

AT-ON, Method for Determining Enzyme Activity

ONORM DIN 10337-1-1993 Determination of Phosphatase activity of milk - Reference method
ONORM DIN 10452-1993 Determination of ash of rennet caseins and caseinates - Reference method

中华人民共和国国家卫生和计划生育委员会, Method for Determining Enzyme Activity

WS/T 222-2002 Guideline for the measurement of catalytic concentration of clinical enzymes
WS/T 349-2011 Reference method for determination of α-amylase catalytic activity concentration
WS/T 66-1996 Blood.Determination of cholinesterase activity.Spectrophotometric method--Hydroxylamine-ferric chloride method
WS/T 352-2011 Reference method for determination of catalytic activity concentration of alanine aminotransferase (without pyridoxal phosphate)

British Standards Institution (BSI), Method for Determining Enzyme Activity

BS DD ISO/TS 17193:2012 Milk. Determination of the lactoperoxidase activity. Photometric method (Reference method)
PD ISO/TS 17193:2011 Milk. Determination of the lactoperoxidase activity. Photometric method (Reference method)
BS EN ISO 11816-2:2016 Milk and milk products. Determination of alkaline phosphatase activity. Fluorimetric method for cheese
BS EN ISO 22160:2007 Milk and milk-based drinks - Determination of alkaline phosphatase activity - Enzymatic photo-activated system (EPAS) method
BS EN ISO 23753-2:2019+A1:2020 Soil quality Determination of dehydrogenases activity in soils - Method using iodotetrazolium chloride (INT)
BS EN ISO 11816-2:2024 Milk and milk products. Determination of alkaline phosphatase activity - Fluorimetric method for cheese
PD ISO/TS 4985:2023 Milk and milk products. Determination of alkaline phosphatase activity. Fluorimetric microplate method
BS EN ISO 23753-1:2019+A1:2020 Soil quality. Determination of dehydrogenases activity in soils - Method using triphenyltetrazolium chloride (TTC)
BS EN ISO 23753-2:2011 Soil quality. Determination of dehydrogenase activity in soils. Method using iodotetrazolium chloride (INT)
BS EN ISO 23753-1:2011 Soil quality. Determination of dehydrogenase activity in soil. Method using triphenyltetrazolium chloride (TTC)
23/30464453 DC BS ISO 15914-2. Animal feeding stuffs. Enzymatic determination of starch - Part 2. Method by enzymatic determination with a hexokinase system and potassium hydroxide dispersion
BS EN ISO 11816-2:2003 Milk and milk products. Determination of alkaline phosphatase activity using a fluorimetric method. Fluorometric method for cheese
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 11816-1:2024 Milk and milk products. Determination of alkaline phosphatase activity - Fluorimetric method for milk and milk-based drinks
BS EN ISO 11816-1:2013 Milk and milk products. Determination of alkaline phosphatase activity. Fluorimetric method for milk and milk-based drinks
BS EN 14371:2004 Surface active agents - Determination of foamability and degree of foamability - Circulation test method
BS 3762-3.17:1983 Analysis of formulated detergents. Quantitative test methods. Method for determination of active oxygen content
20/30405496 DC BS EN ISO 23753-2 AMD1. Soil quality. Determination of dehydrogenases activity in soils. Part 2. Method using iodotetrazolium chloride (INT)
BS ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method)
22/30464203 DC BS EN ISO 11816-2. Milk and milk products. Determination of alkaline phosphatase activity - Part 2. Fluorimetric method for cheese
20/30405492 DC BS EN ISO 23753-1 AMD1. Soil quality. Determination of dehydrogenases activity in soils. Part 1. Method using triphenyltetrazolium chloride (TTC)

Hubei Provincial Standard of the People's Republic of China, Method for Determining Enzyme Activity

DB42/T 1630-2021 Determination of Zearalenone Degrading Enzyme Activity

International Organization for Standardization (ISO), Method for Determining Enzyme Activity

ISO/TS 17193:2011 Milk - Determination of the lactoperoxidase activity - Photometric method (Reference method)
ISO 22160:2007 | IDF 209:2007 Milk and milk-based drinks — Determination of alkaline phosphatase activity — Enzymatic photo-activated system (EPAS) method
ISO/TS 17193:2011 | IDF/RM 208:2011 Milk — Determination of the lactoperoxidase activity — Photometric method (Reference method)
ISO 3983:1977 Cereals and cereal products — Determination of alpha-amylase activity — Colorimetric method
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/DIS 15914-2:2023 Animal feeding stuffs — Enzymatic determination of starch — Part 2: Method by enzymatic determination with a hexokinase system and potassium hydroxide dispersion
ISO/FDIS 15914-2:2023 Animal feeding stuffs — Enzymatic determination of starch — Part 2: Method by enzymatic determination with a hexokinase system and potassium hydroxide dispersion
ISO/TS 4985:2023 Milk and milk products — Determination of alkaline phosphatase activity — Fluorimetric microplate 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 11285:2004 Milk - Determination of lactulose content - Enzymatic method
ISO 11285:2004|IDF 175:2004 Enzymatic method for determination of lactose content in milk
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 11816-2:2023 Milk and milk products — Determination of alkaline phosphatase activity — Part 2: Fluorimetric method for cheese
ISO 11816-2:2024 Milk and milk products — Determination of alkaline phosphatase activity — Part 2: Fluorimetric method for cheese
ISO 23753-1:2005 Soil quality - Determination of dehydrogenase activity in soils - Part 1: Method using triphenyltetrazolium chloride (TTC)
ISO 11816-1:2006 Milk and milk products - Determination of alkaline phosphatase activity - Part 1: Fluorimetric method for milk and milk-based drinks
ISO 11816-1:2013 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 Determination of alkaline phosphatase activity in milk and dairy products Part 1: Fluorometric assay in milk and dairy beverages
ISO 23753-1:2019 Soil quality — Determination of dehydrogenases activity in soils — Part 1: Method using triphenyltetrazolium chloride (TTC)
ISO 11816-2:2003 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Fluorometric method of cheese
ISO 11816-2:2016 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Fluorimetric method for cheese
ISO 11816-2:2003|IDF 155-2:2003 Determination of alkaline phosphatase activity in milk and milk products Part 2: Fluorimetric method in cheese
ISO 11816-1:1997 Milk and milk products - Determination of alkaline phosphatase activity using a fluorimetric method - Part 1: Milk and milk-based drinks
ISO 23753-2:2005 Soil quality - Determination of dehydrogenase activity in soils - Part 2: Method using iodotetrazolium chloride (INT)
ISO 23753-2:2019/Amd 1:2020 Soil quality — Determination of dehydrogenases activity in soils — Part 2: Method using iodotetrazolium chloride (INT) — Amendment 1
ISO 9101:1987 Surface active agents; Determination of interfacial tension; Drop volume method
ISO 14637:2004 Milk - Determination of urea content - Enzymatic method using difference in pH (Reference method)
ISO 14637:2004|IDF 195:2004 Determination of milk urea content using enzymatic method of pH difference (reference method)
ISO 23753-2:2019 Soil quality — Determination of dehydrogenases activity in soils — Part 2: Method using iodotetrazolium chloride (INT)
ISO 11816-1:2024 Milk and milk products — Determination of alkaline phosphatase activity — Part 1: Fluorimetric method for milk and milk-based drinks
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 11816-1:2023 Milk and milk products — Determination of alkaline phosphatase activity — Part 1: Fluorimetric method for milk and milk-based drinks
ISO 3356:1975 Milk and dried milk, buttermilk and buttermilk powder, whey and whey powder; Determination of phosphatase activity (Reference method)

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Method for Determining Enzyme Activity

GB/T 23874-2009 Determination of xylanase activity in feed additives.Spectrophotometric method
GB/T 23881-2009 Determination of feed cellulase activity.Filter paper assay method
GB/T 28715-2012 Determination of acidic and neutral protease activity in feed additives.Spetrophotometric 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 16285-1996 Method for determination of glucose in food--Enzyme-colorimetric method and enzyme-electrode method
GB/T 5550-1998 Surface active agents--Determination of dispersing power
GB/T 16286-1996 Method for determination of sucrose in food--Enzyme-colorimetric method
GB/T 16287-1996 Method for determination of starch in food--Enzyme-colorimetric method
GB/T 18932.16-2003 Method for the determination of diastase number in honey-Spectrophotometric 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 6369-2008 Surface active agents.Determination of emulsifying power.Colorimetric method
GB/T 11983-2008 Surface active agents-Determination of wetting power-Immersion method
GB 6369-1986 Surface active agents－Measurement of emulsifying power－Colorimetric method
GB/T 18932.21-2003 Method for the determination of chloramphenicol residues in honey-Enzyme linked immunosorbent assay method
GB/T 7462-1994 Surface active agents- Measurement of foaming power- Modified Ross-Miles method
GB/T 23195-2008 Determination method of catalase in bee pollen by ultraviolet spectrophotometry
GB/T 7463-2008 Surface active agents.Determination of the power to dispersecalcium soap.Acidimetric method(modifled Schöenfeldt method)
GB/T 12496.6-1999 Test methods of wooden activated carbon-Determination of abrasion resistance
GB/T 12496.7-1999 Test methods of wooden activated carbon-Determination of pH
GB/T 7381-2010 Surface active agents.Determination of stability in hard water
GB/T 7381-1993 Surface active agents. Determination of stability in hard water
GB/T 12496.18-1999 Test methods of wooden activated carbon-Determination of acid-soluble substance
GB/T 12496.19-1999 Test methods of wooden activated carbon-Determination of iron content
GB/T 12496.20-1999 Test methods of wooden activated carbon-Determination of zine content
GB/T 12496.22-1999 Test methods of wooden activated carbon-Determination of heavy metals
GB/T 12496.14-1999 Test methods of wooden activated carbon-Determination of cyanide
GB/T 12496.15-1999 Test methods of wooden activated carbon-Determination of sulphide
GB/T 12496.16-1999 Test methods of wooden activated carbon-Determination of chloride content
GB/T 12496.17-1999 Test methods of wooden activated carbon-Determination of sulphate
GB/T 12496.19-2015 Test methods of wooden activated carbon.Determination of iron content
GB/T 12496.5-1999 Test methods of wooden activated carbon-Determination of carbon tetrechloride activity

农业农村部, Method for Determining Enzyme Activity

NY/T 912-2020 Spectrophotometric method for determination of cellulase activity in feed additives
NY/T 911-2020 Determination of β-glucanase activity of feed additives by spectrophotometry
NY/T 3799-2020 Luminescent method for determination of alkaline phosphatase activity in raw milk and its products

GSO, Method for Determining Enzyme Activity

GSO ISO 22160:2009 Milk and milk-based drinks -Determination of alkaline phosphatase activity - Enzymatic photo-activated system (EPAS) method
OS GSO ISO 22160:2009 Milk and milk-based drinks -Determination of alkaline phosphatase activity - Enzymatic photo-activated system (EPAS) method
OS GSO ISO 23753-2:2013 Soil quality -- Determination of dehydrogenase activity in soils -- Part 2: Method using iodotetrazolium chloride (INT)
GSO ISO 11816-2:2015 Milk and milk products -- Determination of alkaline phosphatase activity -- Part 2: Fluorometric method for cheese
BH GSO ISO 11816-2:2016 Milk and milk products -- Determination of alkaline phosphatase activity -- Part 2: Fluorometric method for cheese
OS GSO ISO 23753-1:2013 Soil quality -- Determination of dehydrogenase activity in soils -- Part 1: Method using triphenyltetrazolium chloride (TTC)
GSO ISO 23753-1:2013 Soil quality -- Determination of dehydrogenase activity in soils -- Part 1: Method using triphenyltetrazolium chloride (TTC)
GSO ISO 8655-6:2009 Piston-operated volumetric apparatus - Part 6 : Gravimetric methods for the determination of measurement error
GSO ISO 5545:2015 Rennet caseins and caseinates -- Determination of ash (Reference method)
BH GSO ISO 9101:2016 Surface active agents - Determination of interfacial tension - Drop volume method
OS GSO ISO 9101:2013 Surface active agents - Determination of interfacial tension - Drop volume method
BH GSO ISO 11816-1:2017 Milk and milk products -- Determination of alkaline phosphatase activity -- Part 1: Fluorimetric method for milk and milk-based drinks
OS GSO ISO 696:2015 Surface active agents -- Measurement of foaming power -- Modified Ross-Miles method

International Dairy Federation (IDF), Method for Determining Enzyme Activity

IDF 209-2007 Milk and milk-based drinks -- Determination of alkaline phosphatase activity -- Enzymatic photo-activated system (EPAS) method
IDF/RM 208-2011 Milk - Determination of the Lactoperoxidase Activity - Photometric Method (Reference Method)
IDF 155-2-2003 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Fluorometric method for cheese
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

Professional Standard - Commodity Inspection, Method for Determining 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
SN/T 3979-2014 Determination of penicillinase in milk and dairy products.Cylinder plate method

National Health Commission of the People's Republic of China, Method for Determining Enzyme Activity

WST 349:2011 Reference method for determination of α-amylase catalytic activity concentration
WST 361:2011 Reference method for determination of catalytic activity concentration of lactate dehydrogenase

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

GB/T 36861-2018 Determination of activity of β-mannanase as feed additive—Spectrophotometric method
GB/T 38722-2020 Surface active agents—Determination of interfacial tension—Drawing up liquid films

Henan Provincial Standard of the People's Republic of China, Method for Determining Enzyme Activity

DB41/T 1729-2018 Determination of Feed Additive Glucose Oxidase Activity Spectrophotometric Method

未注明发布机构, Method for Determining Enzyme Activity

DIN 58908 E:2014-12 Haemostaseology - Determination of activated partial thromboplastin time (APTT) - Reference measurement procedure
ISO/TS 17193:2011/Amd 1:2012 Milk — Determination of the lactoperoxi dase activity — Photometric method (Reference method)
DIN 10750-1 E:2017-12 Analysis of honey - Determination of diastase activity - Part 1: Schade method
DIN 10759 E:2015-10 Analysis of honey - Determination of saccharase activity - Siegenthaler method
DIN EN ISO 11816-2 E:2014-09 Determination of alkaline phosphatase activity in milk and dairy products Part 2: Fluorimetric method for cheese (draft)
DIN EN ISO 11816-2 E:2023-01 Determination of alkaline phosphatase activity in milk and dairy products Part 2: Fluorimetric method for cheese (draft)
DIN EN ISO 23753-2 E:2018-01 Soil quality Determination of dehydrogenase activity in soil Part 2: Method using iodine tetrazolium chloride (INT) (draft)
DIN EN ISO 23753-1:2019 Soil quality - Determination of dehydrogenases activity in soils - Part 1: Method using triphenyltetrazolium chloride (TTC)
DIN EN ISO 11816-1 E:2023-01 Determination of alkaline phosphatase activity in milk and milk products Part 1: Fluorometric method for determination of milk and milk-based beverages (draft)
DIN EN ISO 23753-1 E:2018-01 Soil quality Determination of dehydrogenase activity in soil Part 1: Method using triphenyltetrazolium chloride (TTC) (draft)
ASTM RR-D28-1010 2020 D6851-Test Method for Determination of Contact pH with Activated Carbon
DIN 53902 E:2016-02 Testing of surface active agents - Determination of foaming power - Modified Ross-Miles-method
DIN ISO 5545 E:2020-06 Rennet caseins and caseinates - Determination of ash (Reference method)
ASTM RR-D12-1012 1997 D6173-Test Method for Determination of Various Anionic Surfactant Actives by Potentiometric Titration

Danish Standards Foundation, Method for Determining Enzyme 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 23753-2:2011 Soil Quality - Determination of dehydrogenase activity in soils - Part 2: Method using iodotetrazolium chloride (INT)
DS/EN ISO 11816-2:2003 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Flourometric method for cheese
DS/EN ISO 23753-1:2011 Soil Quality - Determination of dehydrogenase activity in soil - Part 1: Method using triphenyltetrazolium chloride (TTC)
DS/EN 12728:2001 Surface active agents - Determination of foaming power - Perforated disc beating method
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 14210:2004 Surface active agents - Determination of interfacial tension of solutions of surface active agents by the stirrup or ring method

AR-IRAM, Method for Determining Enzyme Activity

IRAM 25 704-1963 Textile printing and dyeing auxiliaries. Enzyme activity determination method in starch hydrolysis
IRAM 25582-1957 Method for determination of wetting power of surfactants
IRAM 25 583-1957 Method for determination of foam generating power of surfactants
IRAM 25586-1957 Method for determination of surfactant resistance to calcium or magnesium salts

国家粮食局, Method for Determining Enzyme Activity

LS/T 6124-2017 Grain and Oil Testing Spectrophotometric Method for Determination of Polyphenol Oxidase Activity of Wheat Flour

Professional Standard - Hygiene , Method for Determining Enzyme Activity

WS/T 361-2011 Reference procedure for the measurement of catalytic activity concentration of lactate dehydrogenase
WS/T 351-2011 Reference procedure for the measurement of catalytical activity concentration of alkaline phosphatase(ALP)
WS/T 417-2013 Reference procedure for the measurement of catalytic concentration of γ-Glutamyltransferase
WS/T 67-1996 Blood.Determination of cholinesterase activity.Spectrophotometric method--Acetylthiocholine and dithio-bis-(nitrobenzoic acid)method
WS/T 353-2011 Reference procedure for the measurement of catalytic activity concentration of aspartate aminotransferase (No pyridoxal-5'-phosphoric acid)

IN-BIS, Method for Determining Enzyme Activity

IS 8479 Pt.2-1977 Determination of phosphatase activity in milk and dairy products Part Ⅱ Reference method
IS 8479 Pt.1-1977 Determination of phosphatase activity in milk and dairy products Part 1 General methods
IS 10524-1982 Colorimetric determination of alpha-amylase activity in cereals and cereal products
IS 647-1965 Method for determining desizing efficiency and relative efficiency of amylolytic enzymes
IS 11962-1987 Method for determination of ash content in chymosin casein and caseinate (reference method)
IS 1689-1973 Method for determination of barium activity in cotton textile materials

Lithuanian Standards Office , Method for Determining Enzyme Activity

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 23753-2:2011 Soil Quality - Determination of dehydrogenase activity in soils - Part 2: Method using iodotetrazolium chloride (INT) (ISO 23753-2:2005)
LST EN 12728-2002 Surface active agents - Determination of foaming power - Perforated disc beating method
LST EN 14210-2004 Surface active agents - Determination of interfacial tension of solutions of surface active agents by the stirrup or ring method
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 23753-1:2011 Soil Quality - Determination of dehydrogenase activity in soil - Part 1: Method using triphenyltetrazolium chloride (TTC) (ISO 23753-1:2005)
LST ISO 696:1997 Surface active agents. Measurement of foaming power. Modified Ross-Miles method
LST EN ISO 14637:2007 Milk - Determination of urea content - Enzymatic method using difference in pH (Reference method) (ISO 14637:2004)

AENOR, Method for Determining Enzyme Activity

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 34832:1986 MILK AND MILK POWDER, BUTTERMILK AND BUTTERMILK POWDER, WHEY AND WHEY POWER. DETERMINATION OF PHOSPHATASE ACTIVITY. ROUTINE METHOD.
UNE 81592:1991 BIOLOGICAL CONTROL. DETERMINATION OF DELTA-AMINOLEVULINIC DEHIDRATASE (ALA-D) ACTIVITY IN BLOOD. SPECTROMETRIC METHOD.
UNE 55840:1989 SURFACE ACTIVE AGENTS. DETERMINATION OF INTERFACIAL TENSION. DROP VOLUME METHOD
UNE-EN 12728:2000 SURFACE ACTIVE AGENTS - DETERMINATION OF FOAMING POWER - PERFORATED DISC BEATING METHOD
UNE-EN 14210:2004 Surface active agents - Determination of interfacial tension of solutions of surface active agents by the stirrup or ring method
UNE 55804:1985 SURFACE ACTIVE AGENTS. DETERMINATION OF THE POWER TO DISPERSE CALCIUM SOAP. ACIDIMETRIC METHOD (MODIFIED SCH？NFELDT METHOD)
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 31023:1994 DETERMINATION OF EXPLOSIVE BRISANCE POWER (HESS METHOD).
UNE-EN ISO 14637:2007 Milk - Determination of urea content - Enzymatic method using difference in pH (Reference method) (ISO 14637:2004)

CU-NC, Method for Determining Enzyme Activity

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

Zhejiang Provincial Standard of the People's Republic of China, Method for Determining Enzyme Activity

DB33/T 2462-2022 Rice Seed Vitality Determination Method

CZ-CSN, Method for Determining Enzyme Activity

CSN 46 7092-28-1998 Testing methods for feeding stuffs - Part 28: Determination of the urease activity in the products containing soya
CSN 57 0105-11-2003 Testing methods for dried milk products and codensed milk - Part 11: Determination of phosphatase activity
CSN 65 9024-1983 Reactive dyestuffe. Method of storage stability determination.
CSN 68 1156-1994 Testing methods for surfactans and detergents. Washing powder. Determination of active oxygen content. Titrimetric ethod.
CSN 65 9022-1983 Reaktive dyestuffs. Method of concentration. and shade determinatlon.
CSN 68 1143-1994 Testing methods for surfactans and detergents. Determination of anion-active tenside
CSN 65 9023-1983 Reactive dyestuffs. Method of insoluble residue determination

ES-AENOR, Method for Determining Enzyme Activity

UNE 34-878-1986 Pasteurized stabilized cheese. Determination of phosphatase activity. Reference method

Standard Association of Australia （SAA）, Method for Determining Enzyme Activity

AS 2300.1.10:1988 Methods of chemical and physical testing for the dairying industry - General methods and principles - Determination of phosphatase 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

Heilongjiang Provincial Standard of the People's Republic of China, Method for Determining Enzyme Activity

DB23/T 2060-2017 Rapid Determination Method of Leymus chinensis Seed Viability

TR-TSE, Method for Determining Enzyme Activity

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

European Committee for Standardization (CEN), Method for Determining Enzyme Activity

EN ISO 22160:2007 Milk and milk-based drinks - Determination of alkaline phosphatase activity - Enzymatic photo-activated system (EPAS) method
EN ISO 11816-1:2000 Milk and Milk Products - Determination of Alkaline Phosphatase Activity Using a Fluorimetric Method - Part 1: Milk and Milk-Based Drinks ISO 11816-1: 1997
EN ISO 11816-1:2013 Milk and milk products - Determination of alkaline phosphatase activity - Part 1: Fluorimetric method for milk and milk-based drinks
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 16283:2013 Packaging - Flexible aluminium tubes - Test method to measure the force to pierce the membrane
EN ISO 11816-2:2016 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Fluorimetric method for cheese
EN ISO 11816-2:2024 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Fluorimetric method for cheese (ISO 11816-2:2024)
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 14210:2003 Surface active agents - Determination of interfacial tension of solutions of surface active agents by the stirrup or ring method
EN 12728:1999 Surface active agents - Determination of foaming power - Perforated disc beating method

Liaoning Provincial Standard of the People's Republic of China, Method for Determining Enzyme Activity

DB21/T 2984-2018 Method for Determination of Vitality of Maize Hybrid Seeds

American Society for Testing and Materials (ASTM), Method for Determining Enzyme Activity

ASTM D3048-89(1995)e1 Standard Test Method of Assay for Alkaline Protease
ASTM D3048-89(2009) Standard Test Method of Assay for Alkaline Protease
ASTM D3048-89(2016) Standard Test Method of Assay for Alkaline Protease
ASTM D5228-92(2005) Standard Test Method for Determination of Butane Working Capacity of Activated Carbon
ASTM D5228-92(2010) Standard Test Method for Determination of Butane Working Capacity of Activated Carbon
ASTM D5228-92(2015) Standard Test Method for Determination of Butane Working Capacity of Activated Carbon
ASTM D5742-95(2005) Standard Test Method for Determination of Butane Activity of Activated Carbon
ASTM D5742-95(2010) Standard Test Method for Determination of Butane Activity of Activated Carbon
ASTM D5742-95(2000) Standard Test Method for Determination of the Butane Activity of Activated Carbon
ASTM D5742-95(2015) Standard Test Method for Determination of Butane Activity of Activated Carbon
ASTM D5742-16 Standard Test Method for Determination of Butane Activity of Activated Carbon
ASTM D5742-16(2023) Standard Test Method for Determination of Butane Activity of Activated Carbon
ASTM D6079-11 Standard Test Method for Evaluating Lubricity of Diesel Fuels by the High-Frequency Reciprocating Rig (HFRR)
ASTM D4607-14(2021) Standard Test Method for Determination of Iodine Number of Activated Carbon
ASTM C1073-18(2023) Standard Test Method for Hydraulic Activity of Slag Cement by Reaction with Alkali
ASTM D8243-19 Standard Test Method for Determination of APS Reductase to Estimate Sulfate Reducing Bacterial Bioburdens in Water – Enzyme-Linked Immunosorbent Assay Method
ASTM D7688-11 Standard Test Method for Evaluating Lubricity of Diesel Fuels by the High-Frequency Reciprocating Rig (HFRR) by Visual Observation
ASTM D5832-98 Standard Test Method for Volatile Matter Content of Activated Carbon Samples
ASTM D5832-98(2003) Standard Test Method for Volatile Matter Content of Activated Carbon Samples
ASTM D5832-98(2008) Standard Test Method for Volatile Matter Content of Activated Carbon Samples
ASTM D4607-94(1999) Standard Test Method for Determination of Iodine Number of Activated Carbon
ASTM D4607-94(2006) Standard Test Method for Determination of Iodine Number of Activated Carbon
ASTM D4607-94(2011) Standard Test Method for Determination of Iodine Number of Activated Carbon
ASTM D6851-02(2007) Standard Test Method for Determination of Contact pH with Activated Carbon
ASTM D6851-20 Standard Test Method for Determination of Contact pH with Activated Carbon
ASTM D4251-89(1995)e1 Standard Test Method for Active Matter in Anionic Surfactants by Potentiometric Titration
ASTM D4251-89(2016) Standard Test Method for Active Matter in Anionic Surfactants by Potentiometric Titration
ASTM D4607-14 Standard Test Method for Determination of Iodine Number of Activated Carbon

NL-NEN, Method for Determining Enzyme Activity

NEN 3142-1962 Determination of phosphatase activity in milk and liquid milk products, Sanders' and Sager's method
NEN 3769-1981 Cheese - Physical and chemical test methods - Enzymatic determination of the lactose content

Shandong Provincial Standard of the People's Republic of China, Method for Determining Enzyme Activity

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

IT-UNI, Method for Determining Enzyme Activity

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)

ES-UNE, Method for Determining Enzyme Activity

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.)

Gansu Provincial Standard of the People's Republic of China, Method for Determining Enzyme Activity

DB62/T 4804.1-2023 Methods for determination of corn seed vigor Part 1: General principles
DB62/T 4804.3-2023 Method for determination of corn seed vigor Part 3: Low temperature treatment method
DB62/T 4804.2-2023 Method for determination of corn seed vigor Part 2: Radicle counting method
DB62/T 4804.4-2023 Method for determination of corn seed vigor Part 4: Accelerated aging method

CEN - European Committee for Standardization, Method for Determining Enzyme Activity

EN ISO 11816-2:2003 Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Fluorometric method for cheese
EN ISO 11816-1:2006 Milk and milk products - Determination of alkaline phosphatase activity - Part 1: Fluorimetric method for milk and milk-based drinks
EN ISO 23753-1:2019 Soil quality - Determination of dehydrogenases activity in soils - Part 1: Method using triphenyltetrazolium chloride
EN ISO 23753-2:2019 Soil quality - Determination of dehydrogenases activity in soils - Part 2: Method using iodotetrazolium chloride (INT)

Korean Agency for Technology and Standards (KATS), Method for Determining 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 23753-1:2006 Soil quality－Determination of dehydrogenase activity in soils－ Part 1：Method using triphenyltetrazolium chloride(TTC)
KS H ISO 11816-1:2006 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 23753-2:2021 Soil quality — Determination of dehydrogenases 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 3219-2007 Water quality－Determination of surfactants
KS M ISO 9101:2007 Surface active agents-Determination of interfacial tension-Drop volume method
KS M ISO 696-2007(2018) Surface active agents－Measurement of foaming power－Modified Ross-Miles method
KS M ISO 9101:2013 Surface active agents－Determination of interfacial tension－Drop volume method
KS E 3081-2002 Determination of N oxygen in manganese ores
KS M ISO 9101-2007(2008) Surface active agents－Determination of interfacial tension－Drop volume method
KS I ISO 23753-1-2006(2016) Soil quality－Determination of dehydrogenase activity in soils－ Part 1：Method using triphenyltetrazolium chloride(TTC)
KS M ISO 6387-2023 Surface active agents－Determination of the power to disperse calcium soap－Acidimetric method(Modified Schönfeldt method)
KS I ISO 23753-1:2021 Soil quality — Determination of dehydrogenases activity in soils —Part 1: Method using triphenyltetrazolium chloride(TTC)

KR-KS, Method for Determining Enzyme Activity

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)
KS I ISO 23753-1-2021 Soil quality — Determination of dehydrogenases activity in soils —Part 1: Method using triphenyltetrazolium chloride(TTC)
KS M ISO 696-2007(2023) Surface active agents－Measurement of foaming power－Modified Ross-Miles method

BE-NBN, Method for Determining Enzyme Activity

NBN T 63-160-1987 Surface active agents - Washing powders - Determination of total silica content -Gravimetrie method
NBN T 63-108-1980 Surface active, agents - Measurement of foaming power - Modified Ross-Miles method
NBN T 63-159-1987 Surface active agents - Washing powders - Determination of inorganic sulfates -Gravimetrie method
NBN T 63-113-1980 Surface active agents - Determination of stability in hard water

BELST, Method for Determining Enzyme Activity

STB GOST R 51211-2001 Drinking water. Methods for determination of surfactants

PL-PKN, Method for Determining Enzyme Activity

PN C97555-10-1985 Activated carbane Method of test Determination of pH value of aqueous extract
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 C89087-1986 Plasties Determination of loss of plasticizers by the activated carbon method

YU-JUS, Method for Determining Enzyme Activity

JUS H.E8.047-1991 Surface active agents. ?et&rmination of surface tension by ?raving up liquid films

American National Standards Institute （ANSI), Method for Determining Enzyme Activity

ANSI/ASTM D1203:1994 Test Method for Volatile Loss from Plastics Using Activated Carbon Methods (08.01)

Professional Standard - Coal, Method for Determining Enzyme Activity

MT/T 1156-2011 Determination of the particle-size distribution of powdered activated carbon by wet method
MT/T 1068-2008 Determination for acid soluble iron content in activated carbon
MT/T 1069-2008 Determination for acid soluble content in activated carbon
MT/T 1155-2011 Determination of Dechlorination Half-Value length of granular activated carbon

Professional Standard - Forestry, Method for Determining Enzyme Activity

LY/T 1786-2008 Determination on tannic value of activated carbon

国家安全生产监督管理总局, Method for Determining Enzyme Activity

MT/T 1068-2007 Determination method for acid-soluble iron content in activated carbon
MT/T 1069-2007 Determination method for acid-soluble matter content in activated carbon

Professional Standard - Electricity, Method for Determining Enzyme Activity

DL/T 323-2010 Measurement method for activity of quicklime used in dry flue gas desulfurization