標準編號:	GB 7300.103-2020
中文名稱:	飼料添加劑 第1部分：氨基酸、氨基酸鹽及其類似物 蛋氨酸羥基類似物
英文名稱:	Feed additives―Part 1：Amino acids, their salts and analogues―Methionine hydroxy analogue
中標分類:	B46    畜禽飼料與添加劑
行業(yè)分類:	GB    國家標準
ICS分類:	65.120 65.120    飼料 65.120
發(fā)布機構(gòu):	國家市場監(jiān)督管理總局 國家標準化管理委員會
發(fā)布日期:	2020-05-29
實施日期:	2020-12-1
標準狀態(tài):	valid
替代舊標準:	GB/T 19371.1-2003 飼料添加劑 液態(tài)蛋氨酸羥基類似物
翻譯語言:	英文
文件格式:	PDF
中文字符數(shù):	11000 字
翻譯價格(元):	770.0
交付時間:	付款后 1 個工作日

GB 7300.103-2020 Feed additives — Part 1: Amino acids, their salts and analogues — Methionine hydroxy analogue 1 Scope This part of GB 7300 specifies the requirements, test methods, inspection rules as well as labelling, packaging, transportation, storage and shelf life of methionine hydroxy analogue for feed additives. This part is applicable to methionine hydroxy analogue of feed additives produced through chemical synthesis with acrolein, methyl mercaptan and hydrocyanic acid as the main raw materials. Chemical name: 2-hydroxy-4-methylthio-butyric acid Molecular formula: C5H10O3S Relative molecular mass: 150.2 (calculated as C5H10O3S, in accordance with the International Standard Table of Relative Atomic Weights 2016) 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 601 Chemical reagent - Preparations of reference titration solutions GB/T 602 Chemical reagent - Preparations of standard solutions for impurity GB/T 603 Chemical reagent - Preparations of reagent solutions for use in test methods GB/T 6680 General rules for sampling liquid chemical products GB/T 6682 Water for analytical laboratory use - Specification and test methods GB 10648 Feed label GB/T 13079-2006 Determination of total arsenic in feeds 3 Requirements 3.1 Appearance and property This product is a brown or dark brown viscous liquid with a special odor and is highly soluble in water. Warning: This product is highly corrosive. Avoid contact with eyes and skin. If it accidentally comes into contact with skin, rinse immediately with plenty of water. 3.2 Technical indexes The technical indexes of methionine hydroxy analogue shall meet those specified in Table 1. Table 1 Technical index

Foreword I 1 Scope 2 Normative references 3 Requirements 4 Test methods 5 Inspection rules 6 Labelling, packaging, transportation and storage 7 Shelf life