Animal Feeding Stuffs

European and International standards for animal feeding stuffs. Genorma.com gives you the easiest access to the most relevant standards on feeding stuffs for animals.

At European level, the European Committee for Standardization (CEN) has developed a complete set of standards covering methods of sampling and analysis for animal feeding stuffs, including chemical, biochemical, microbiological, physical and microscopical methods. This includes standards on:

  • Organic contaminants
  • Composition
  • Feed additives and drugs
  • Elements and their chemical species
  • Natural toxins
  • Radioactivity measurements

At international level, the International Standards Organization (ISO) has developed a set of international standards covering:

  • terminology,
  • sampling,
  • methods of test and analysis,
  • product specifications,
  • food and feed safety and quality management, and
  • requirements for packaging, storage and transportation


Technical committee




Animal feeding stuffs — sampling

Animal feeding stuffs — Sampling

90.93 Standard confirmed

ISO/TC 34/SC 10



Animal feeding stuffs — guidelines for sample preparation

Animal feeding stuffs — Guidelines for sample preparation

90.93 Standard confirmed

ISO/TC 34/SC 10



Microbiology of food and animal feeding stuffs - horizontal method for the detection of escherichia coli o157

Microbiology of food and animal feeding stuffs - Horizontal method for the detection of Escherichia coli O157 (ISO 16654:2001)

60.60 Standard published

CEN/TC 463

Microbiology of food and animal feeding stuffs - Horizontal method for the detection of Escherichia coli O157 - Amendment 1: Annex B: Result of interlaboratory studies (ISO 16654:2001/Amd 1:2017)

60.60 Standard published

CEN/TC 463



Animal feeding stuffs -

Animal feeding stuffs - Determination of the content of fatty acids - Part 1: Preparation of methyl esters (ISO/TS 17764-1:2002)

90.93 Standard confirmed

CEN/TC 327

Animal feeding stuffs - Determination of the content of fatty acids - Part 2: Gas chromatographic method (ISO/TS 17764-2:2002)

90.93 Standard confirmed

CEN/TC 327

Animal feeding stuffs - Determination of sugar content - High performance exchange chromatographic method (HPAEC-PAD)

90.93 Standard confirmed

CEN/TC 327

Animal feeding stuffs - PCR typing of probiotic strains of Saccharomyces cerevisiae (yeast)

90.93 Standard confirmed

CEN/TC 327

Animal feeding stuffs - Methods of sampling and analysis - Performance criteria for single laboratory validated and ring-trial validated methods of analysis for the determination of mycotoxins

60.60 Standard published

CEN/TC 327

Animal feeding stuffs - Determination of maduramicin-ammonium by reversed-phase HPLC using post-column derivatisation

90.60 Close of review

CEN/TC 327

Animal feeding stuffs - Determination of nicarbazin - High-performance liquid chromatographic method

90.60 Close of review

CEN/TC 327

Animal feeding stuffs - Isolation and enumeration of Bifidobacterium spp.

60.60 Standard published

CEN/TC 327

Animal feeding stuffs - Determination of Deoxynivalenol in animal feed - HPLC method with UV detection and immunoaffinity column clean-up

90.60 Close of review

CEN/TC 327

Animal feeding stuffs - Determination of zearalenone in animal feed - High performance liquid chromatographic method with fluorescence detection and immunoaffinity column clean-up

90.60 Close of review

CEN/TC 327

Animal feeding stuffs - Determination of the Sum of Fumonisin B1 & B2 in compound animal feed with immunoaffinity clean-up and RP-HPLC with fluorescence detection after pre- or post-column derivatisation

90.20 Standard under periodical review

CEN/TC 327

Animal feeding stuffs - Determination of Ochratoxin A in animal feed by immunoaffinity column clean-up and High Performance Liquid Chromatography with fluorescence detection

90.20 Standard under periodical review

CEN/TC 327

Animal feeding stuffs - Determination of semduramicin content - Liquid chromatographic method using a "tree" analytical approach

90.60 Close of review

CEN/TC 327

Animal feeding stuffs - Determination of selenium by hydride generation atomic absorption spectrometry (HGAAS) after microwave digestion (digestion with 65 % nitric acid and 30 % hydrogen peroxide)

90.60 Close of review

CEN/TC 327

Animal feeding stuffs - Determination of Hydrocyanic acid by HPLC

90.60 Close of review

CEN/TC 327

Animal feeding stuffs - Determination of decoquinate by HPLC with fluorescence detection

90.60 Close of review

CEN/TC 327

Animal feeding stuffs - Determination of arsenic by hydride generation atomic absorption spectrometry (HGAAS) after microwave pressure digestion (digestion with 65 % nitric acid and 30 % hydrogen peroxide)

90.60 Close of review

CEN/TC 327

Animal feeding stuffs - Determination of mercury by cold-vapour atomic absorption spectrometry (CVAAS) after microwave pressure digestion (extraction with 65 % nitric acid and 30 % hydrogen peroxide)

90.60 Close of review

CEN/TC 327

Animal feeding stuffs - Determination of inorganic arsenic by hydride generation atomic absorption spectrometry (HG-AAS) after microwave extraction and separation by solid phase extraction (SPE)

90.60 Close of review

CEN/TC 327

Animal feeding stuffs - Determination of fluoride content after hydrochloric acid treatment by ion-sensitive electrode method (ISE)

90.60 Close of review

CEN/TC 327

Animal Feeding stuffs - Methods of sampling and analysis - Determination of melamine and cyanuric acid content by liquid chromatographic method with mass spectrometric detection (LC-MS/MS)

60.60 Standard published

CEN/TC 327

Animal feeding stuffs - Methods of sampling and analysis - Determination of organic acids by Ion Chromatography with Conductivity Detection (IC-CD)

60.60 Standard published

CEN/TC 327

Animal feeding stuffs - Methods of sampling and analysis - Determination of benzoic and sorbic acid by High Performance Liquid Chromatography (HPLC)

60.60 Standard published

CEN/TC 327

Cereals, cereals-based products and animal feeding stuffs - Determination of crude fat and total fat content by the Randall extraction method (ISO 11085:2015)

60.60 Standard published

CEN/TC 338

Animal feeding stuffs - Determination of amino acids content (ISO 13903:2005)

60.60 Standard published

CEN/TC 327

Animal feeding stuffs - Determination of tryptophan content (ISO 13904:2016)

60.60 Standard published

CEN/TC 327

Animal feeding stuffs - Determination of acid detergent fibre (ADF) and acid detergent lignin (ADL) contents (ISO 13906:2008)

60.60 Standard published

CEN/TC 327

Animal feeding stuffs - Determination of residues of organochlorine pesticides - Gas chromatographic method (ISO 14181:2000)

90.93 Standard confirmed

CEN/TC 327

Animal feeding stuffs - Determination of residues of organophosphorus pesticides - Gas chromatographic method (ISO 14182:1999)

90.93 Standard confirmed

CEN/TC 327

Animal feeding stuffs - Determination of monensin, narasin and salinomycin contents - Liquid chromatographic method using post-column derivatization (ISO 14183:2005)

60.60 Standard published

CEN/TC 327

Animal feeding stuffs - Determination of monensin, narasin and salinomycin contents - Liquid chromatographic method using post-column derivatization - Technical Corrigendum 1 (ISO 14183:2005/Cor 1:2010)

60.60 Standard published

CEN/TC 327

Animal feeding stuffs - Determination of vitamin A content - Method using high-performance liquid chromatography (ISO 14565:2000)

90.93 Standard confirmed

CEN/TC 327

Animal feeding stuffs - Determination of trypsin inhibitor activity of soya products (ISO 14902:2001)

90.93 Standard confirmed

CEN/TC 327

Animal feeding stuffs - Determination of carbadox content - Method using high-performance liquid chromatography (ISO 14939:2001)

90.92 Standard to be revised

CEN/TC 327

Animal feeding stuffs - Enzymatic determination of total starch content (ISO 15914:2004)

60.60 Standard published

CEN/TC 327

Animal feeding stuffs - Determination of amylase-treated neutral detergent fibre content (aNDF) (ISO 16472:2006)

60.60 Standard published

CEN/TC 327

Microbiology of food and animal feeding stuffs - Horizontal method for the detection of Escherichia coli O157 (ISO 16654:2001)

60.60 Standard published

CEN/TC 463

Microbiology of food and animal feeding stuffs - Horizontal method for the detection of Escherichia coli O157 - Amendment 1: Annex B: Result of interlaboratory studies (ISO 16654:2001/Amd 1:2017)

60.60 Standard published

CEN/TC 463

Animal feeding stuffs - Determination of lysine, methionine and threonine in commercial amino acid products and premixtures (ISO 17180:2013)

60.60 Standard published

CEN/TC 327

Animal feeding stuffs - Determination of aflatoxin B1 (ISO 17375:2006)

60.60 Standard published

CEN/TC 327

Microbiology of food and animal feeding stuffs - Polymerase chain reaction (PCR) for the detection of food-borne pathogens - Requirements for sample preparation for qualitative detection (ISO 20837:2006)

60.60 Standard published

CEN/TC 463

Microbiology of food and animal feeding stuffs - Polymerase chain reaction (PCR) for the detection of food-borne pathogens - Requirements for amplification and detection for qualitative methods (ISO 20838:2006)

60.60 Standard published

CEN/TC 463

Microbiology of food and animal feeding stuffs - Horizontal method for the detection of Shigella spp. (ISO 21567:2004)

90.93 Standard confirmed

CEN/TC 463

Microbiology of food and animal feeding stuffs - Horizontal method for the determination of low numbers of presumptive Bacillus cereus - Most probable number technique and detection method (ISO 21871:2006)

60.60 Standard published

CEN/TC 463

Microbiology of food and animal feeding stuffs - Polymerase chain reaction (PCR) for the detection and quantification of food-borne pathogens - Performance characteristics (ISO 22118:2011)

60.60 Standard published

CEN/TC 463

Microbiology of food and animal feeding stuffs - Real-time polymerase chain reaction (PCR) for the detection of food-borne pathogens - General requirements and definitions (ISO 22119:2011)

60.60 Standard published

CEN/TC 463

Microbiology of food and animal feeding stuffs - Polymerase chain reaction (PCR) for the detection of food-borne pathogens - General requirements and definitions (ISO 22174:2005)

90.93 Standard confirmed

CEN/TC 463

Animal feeding stuffs - Determination of phytase activity (ISO 30024:2009)

60.60 Standard published

CEN/TC 327

Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005)

60.60 Standard published

CEN/TC 327

Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005/Cor 1:2008)

60.60 Standard published

CEN/TC 327

Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 2: Block digestion and steam distillation method (ISO 5983-2:2009)

60.60 Standard published

CEN/TC 327

Animal feeding stuffs - Sampling (ISO 6497:2002)

60.60 Standard published

CEN/TC 327

Animal feeding stuffs - Guidelines for sample preparation (ISO 6498:2012)

60.60 Standard published

CEN/TC 327

Animal feeding stuffs - Determination of crude fibre content - Method with intermediate filtration (ISO 6865:2000)

90.93 Standard confirmed

CEN/TC 327

Animal feeding stuffs - Determination of vitamin E content - Method using high-performance liquid chromatography (ISO 6867:2000)

90.93 Standard confirmed

CEN/TC 327

Animal feeding stuffs - Determination of the contents of calcium, copper, iron, magnesium, manganese, potassium, sodium and zinc - Method using atomic absorption spectrometry (ISO 6869:2000)

90.93 Standard confirmed

CEN/TC 327

Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of coagulase-positive staphylococci (Staphylococcus aureus and other species) - Part 3: Detection and MPN technique for low numbers (ISO 6888-3:2003)

90.93 Standard confirmed

CEN/TC 463

Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of coagulase-positive staphylococci (Staphylococcus aureus and other species) - Part 3: Detection and MPN technique for low numbers (ISO 6888-3:2003)

60.60 Standard published

CEN/TC 463

Microbiology of food and animal feeding stuffs - General requirements and guidance for microbiological examinations (ISO 7218:2007)

90.93 Standard confirmed

CEN/TC 463

Microbiology of food and animal feeding stuffs - General requirements and guidance for microbiological examinations - Amendment 1 (ISO 7218:2007/Amd 1:2013, Corrected version 2014-04-15)

60.60 Standard published

CEN/TC 463

Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of presumptive Bacillus cereus - Colony-count technique at 30 °C (ISO 7932:2004)

90.93 Standard confirmed

CEN/TC 463

Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of presumptive Bacillus cereus - Colony-count technique at 30 degrees C - Amendment 1: Inclusion of optional tests (ISO 7932:2004/Amd 1:2020, Corrected version 2020-08)

60.60 Standard published

CEN/TC 463

Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of Clostridium perfringens - Colony-count technique (ISO 7937:2004)

90.93 Standard confirmed

CEN/TC 463



Animal feeding stuffs —

Cereals, cereals-based products and animal feeding stuffs — Determination of crude fat and total fat content by the Randall extraction method

90.60 Close of review

ISO/TC 34/SC 4

Animal feeding stuffs — Determination of amino acids content

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of tryptophan content

90.60 Close of review

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of acid detergent fibre (ADF) and acid detergent lignin (ADL) contents

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of residues of organochlorine pesticides — Gas chromatographic method

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of residues of organophosphorus pesticides — Gas chromatographic method

90.60 Close of review

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of monensin, narasin and salinomycin contents — Liquid chromatographic method using post-column derivatization

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of monensin, narasin and salinomycin contents — Liquid chromatographic method using post-column derivatization — Technical Corrigendum 1

60.60 Standard published

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of vitamin A content — Method using high-performance liquid chromatography

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of aflatoxin B1 content of mixed feeding stuffs — Method using high-performance liquid chromatography

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of furazolidone content — Method using high-performance liquid chromatography

90.60 Close of review

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of trypsin inhibitor activity of soya products

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of carbadox content — Method using high-performance liquid chromatography

90.93 Standard confirmed

ISO/TC 34/SC 10

Microbiology of food and animal feeding stuffs — Horizontal method for the enumeration of sulfite-reducing bacteria growing under anaerobic conditions

90.92 Standard to be revised

ISO/TC 34/SC 9

Microbiology of food and animal feeding stuffs — Horizontal method for the enumeration of mesophilic lactic acid bacteria — Colony-count technique at 30 degrees C

90.93 Standard confirmed

ISO/TC 34/SC 9

Animal feeding stuffs — Enzymatic determination of total starch content

90.60 Close of review

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of amylase-treated neutral detergent fibre content (aNDF)

90.60 Close of review

ISO/TC 34/SC 10

Microbiology of food and animal feeding stuffs — Horizontal method for the enumeration of beta-glucuronidase-positive Escherichia coli — Part 2: Colony-count technique at 44 degrees C using 5-bromo-4-chloro-3-indolyl beta-D-glucuronide

90.93 Standard confirmed

ISO/TC 34/SC 9

Microbiology of food and animal feeding stuffs — Horizontal method for the detection of Escherichia coli O157

90.93 Standard confirmed

ISO/TC 34/SC 9

Microbiology of food and animal feeding stuffs — Horizontal method for the detection of Escherichia coli O157 — Amendment 1: Annex B: Result of interlaboratory studies

60.60 Standard published

ISO/TC 34/SC 9

Animal feeding stuffs — Determination of lysine, methionine and threonine in commercial amino acid products and premixtures

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of zearalenone by immunoaffinity column chromatography and high performance liquid chromatography

90.60 Close of review

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of zearalenone by immunoaffinity column chromatography and high performance liquid chromatography — Amendment 1: Limitation of the scope

60.60 Standard published

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of aflatoxin B1

90.60 Close of review

ISO/TC 34/SC 10

Animal feeding stuffs — Vocabulary

60.60 Standard published

ISO/TC 34/SC 10

Microbiology of food and animal feeding stuffs — Polymerase chain reaction (PCR) for the detection of food-borne pathogens — Requirements for sample preparation for qualitative detection

90.92 Standard to be revised

ISO/TC 34/SC 9

Microbiology of food and animal feeding stuffs — Polymerase chain reaction (PCR) for the detection of food-borne pathogens — Requirements for amplification and detection for qualitative methods

90.92 Standard to be revised

ISO/TC 34/SC 9

Microbiology of food and animal feeding stuffs — Horizontal method for the enumeration of yeasts and moulds — Part 1: Colony count technique in products with water activity greater than 0,95

90.93 Standard confirmed

ISO/TC 34/SC 9

Microbiology of food and animal feeding stuffs — Horizontal method for the enumeration of yeasts and moulds — Part 2: Colony count technique in products with water activity less than or equal to 0,95

90.93 Standard confirmed

ISO/TC 34/SC 9

Microbiology of food and animal feeding stuffs — Horizontal method for the detection of Shigella spp.

90.93 Standard confirmed

ISO/TC 34/SC 9

Microbiology of food and animal feeding stuffs — Horizontal method for the determination of low numbers of presumptive Bacillus cereus — Most probable number technique and detection method

90.93 Standard confirmed

ISO/TC 34/SC 9

Microbiology of food and animal feeding stuffs — Polymerase chain reaction (PCR) for the detection and quantification of food-borne pathogens — Performance characteristics

90.20 Standard under periodical review

ISO/TC 34/SC 9

Microbiology of food and animal feeding stuffs — Real-time polymerase chain reaction (PCR) for the detection of food-borne pathogens — General requirements and definitions

90.92 Standard to be revised

ISO/TC 34/SC 9

Microbiology of food and animal feeding stuffs — Polymerase chain reaction (PCR) for the detection of food-borne pathogens — General requirements and definitions

90.92 Standard to be revised

ISO/TC 34/SC 9

Animal feeding stuffs — Determination of phytase activity

90.92 Standard to be revised

ISO/TC 34/SC 10

Microbiology of food and animal feeding stuffs — Horizontal method for the detection and enumeration of coliforms — Most probable number technique

90.93 Standard confirmed

ISO/TC 34/SC 9

Microbiology of food and animal feeding stuffs — Horizontal method for the enumeration of coliforms — Colony-count technique

90.93 Standard confirmed

ISO/TC 34/SC 9

Animal feeding stuffs — Determination of castor oil seed husks — Microscope method

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of available lysine

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of nitrogen content and calculation of crude protein content — Part 1: Kjeldahl method

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of nitrogen content and calculation of crude protein content — Part 1: Kjeldahl method — Technical Corrigendum 1

60.60 Standard published

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of nitrogen content and calculation of crude protein content — Part 2: Block digestion and steam distillation method

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of crude ash

60.60 Standard published

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of ash insoluble in hydrochloric acid

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of ash insoluble in hydrochloric acid — Amendment 1

60.60 Standard published

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of ash insoluble in hydrochloric acid — Technical Corrigendum 1

60.60 Standard published

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of calcium content — Part 1: Titrimetric method

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of phosphorus content — Spectrometric method

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of fat content

90.60 Close of review

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of starch content — Polarimetric method

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of water-soluble chlorides content — Part 1: Titrimetric method

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of moisture and other volatile matter content

90.60 Close of review

ISO/TC 34/SC 10

Animal feeding stuffs — Sampling

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Guidelines for sample preparation

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of urea content

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of soluble nitrogen content after treatment with pepsin in dilute hydrochloric acid

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of crude fibre content — Method with intermediate filtration

90.20 Standard under periodical review

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of free and total gossypol

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of vitamin E content — Method using high-performance liquid chromatography

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of the contents of calcium, copper, iron, magnesium, manganese, potassium, sodium and zinc — Method using atomic absorption spectrometry

90.60 Close of review

ISO/TC 34/SC 10

Animal feeding stuffs — Qualitative determination of zearalenone

90.93 Standard confirmed

ISO/TC 34/SC 10

Microbiology of food and animal feeding stuffs — Horizontal method for the enumeration of coagulase-positive staphylococci (Staphylococcus aureus and other species) — Part 3: Detection and MPN technique for low numbers

90.92 Standard to be revised

ISO/TC 34/SC 9

Microbiology of food and animal feeding stuffs — General requirements and guidance for microbiological examinations

90.92 Standard to be revised

ISO/TC 34/SC 9

Microbiology of food and animal feeding stuffs — General requirements and guidance for microbiological examinations — Amendment 1

60.60 Standard published

ISO/TC 34/SC 9

Microbiology of food and animal feeding stuffs — Horizontal method for the detection and enumeration of presumptive Escherichia coli — Most probable number technique

90.93 Standard confirmed

ISO/TC 34/SC 9

Animal feeding stuffs — Determination of potassium and sodium contents — Methods using flame-emission spectrometry

90.60 Close of review

ISO/TC 34/SC 10

Microbiology of food and animal feeding stuffs — Horizontal method for the enumeration of presumptive Bacillus cereus — Colony-count technique at 30 degrees C

90.93 Standard confirmed

ISO/TC 34/SC 9

Microbiology of food and animal feeding stuffs — Horizontal method for the enumeration of presumptive Bacillus cereus — Colony-count technique at 30 degrees C — Amendment 1: Inclusion of optional tests

60.60 Standard published

ISO/TC 34/SC 9

Microbiology of food and animal feeding stuffs — Horizontal method for the enumeration of Clostridium perfringens — Colony-count technique

90.92 Standard to be revised

ISO/TC 34/SC 9

Animal feeding stuffs — Determination of the content of fatty acids — Part 1: Preparation of methyl esters

90.93 Standard confirmed

ISO/TC 34/SC 10

Animal feeding stuffs — Determination of the content of fatty acids — Part 2: Gas chromatographic method

90.93 Standard confirmed

ISO/TC 34/SC 10