DS/EN ISO 13903-2005

Animal feeding stuffs – Determination of amino acids content

DS/EN ISO 13903-2005 发布历史

This standard describes the determination of free (synthetic and natural) and total (peptide bound and free) amino acids in feedingstuffs, using an amino acid analyser or HPLC equipment. It is applicable to the following amino acids: - sum of cystine and cysteine; - methionine; - lysine; - threonine; - alanine; - arginine; - aspartic acid; - glutamic acid; - glycine; - histidine; - isoleucine; - leucine; - phenylalanine; - proline; - serine; - tyrosine; - valine. The method does not distinguish between the salts of amino acids and it cannot differentiate between D and L forms of amino acids. It is not valid for the determination of tryptophan or hydroxy ana

DS/EN ISO 13903-2005由丹麦标准化协会 DK-DS 发布于 2005-08-26，并于 2005-08-26 实施。

DS/EN ISO 13903-2005在国际标准分类中归属于: 65.120 饲料。

DS/EN ISO 13903-2005的历代版本如下：

• 2005年08月26日 DS/EN ISO 13903-2005

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标准号

DS/EN ISO 13903-2005

发布日期

2005年08月26日

实施日期

2005年08月26日

废止日期

无

国际标准分类号

65.120

发布单位

DK-DS

适用范围

This standard describes the determination of free (synthetic and natural) and total (peptide bound and free) amino acids in feedingstuffs, using an amino acid analyser or HPLC equipment. It is applicable to the following amino acids: - sum of cystine and cysteine; - methionine; - lysine; - threonine; - alanine; - arginine; - aspartic acid; - glutamic acid; - glycine; - histidine; - isoleucine; - leucine; - phenylalanine; - proline; - serine; - tyrosine; - valine. The method does not distinguish between the salts of amino acids and it cannot differentiate between D and L forms of amino acids. It is not valid for the determination of tryptophan or hydroxy ana