Standard No.:	GB 7300.201-2019
English Name:	Feed additives—Part 2：Vitamins,provitamins and chemically well-defined substances having similar effect—L-Ascorbyl-2-phosphate
Chinese Name:	饲料添加剂 第2部分：维生素及类维生素 L-抗坏血酸-2-磷酸酯盐
Chinese Classification:	B46    Livestock and poultry feed and additive
Professional Classification:	GB    National Standard
Source Content Issued by:	SAMR; SAC
Issued on:	2019-12-17
Implemented on:	2020-7-1
Status:	valid
Superseding:	GB/T 19422-2003 Feed aditive—L-Ascorbic acid-2-phosphate
Target Language:	English
File Format:	PDF
Word Count:	5000 words
Translation Price(USD):	150.0
Delivery:	via email in 1 business day

GB 7300.201-2019 Feed additives — Part 2: Vitamins, provitamins and chemically well-defined substances having similar effect — L-Ascorbyl-2-phosphate 1 Scope This part of GB 7300 specifies the technical requirements, test methods, inspection rules as well as labeling, packaging, transportation, storage and shelf life of L-Ascorbyl-2-phosphate for feed additive. This part is applicable to the L-Ascorbyl-2-phosphate prepared by the reaction of L-Ascorbic acid with metaphosphate (sodium, calcium, magnesium, etc.). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated reference, only the edition cited applies. For undated references, the latest edition of the referenced documents (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 6435 Determination of moisture in feedstuffs GB/T 6437 Determination of phosphorus in feed - Spectphotometry GB/T 6682 Water for analytical laboratory use - Specification and test methods GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values GB 10648 Feed label GB/T 13079-2006 Determination of total arsenic in feeds GB/T 13080 Determination of lead in feeds - Method using atomic absorption spectrometry GB/T 14699.1 Feeding stuffs - Sampling GB/T 18634 Determination of feed phytase activity - Spectrothotometric method 3 Technical requirements 3.1 Appearance and property This product is a white or light yellow powder. 3.2 Product specification The product specifications can be determined according to the contract requirements, but the content of L-Ascorbate-2-phosphate (as measured by L-Ascorbate) shall not be less than 35%. 3.3 Identification It shall conform to the maximum ultraviolet absorption wavelength of L-Ascorbate-2-phosphate, or the characteristics of the chemical reaction described in 4.4. 3.4 Technical indexes The technical indexes shall meet those specified in Table 1.

Foreword II 1 Scope 2 Normative references 3 Technical requirements 4 Test methods 5 Inspection rules 6 Labeling, packaging, transportation, storage, and shelf life Annex A (Informative) Chromatogram of L-Ascorbate-2-monophosphate