GB7300.103-2020

Feed additives—Part 1：Amino acids, their salts and analogues—Methionine hydroxy analogue

饲料添加剂第1部分：氨基酸、氨基酸盐及其类似物蛋氨酸羟基类似物

GB 7300.103-2020 es una norma nacional china obligatoria vigente: Feed additives—Part 1：Amino acids, their salts and analogues—Methionine hydroxy analogue. Sector: Alimentos. Enfoque: Seguridad de productos. Entrada en vigor: 1 dic 2020.

La aplicabilidad depende del alcance del producto, la vía de certificación, los avisos de la autoridad competente y las reglas de transición. Solicite una traducción o verifique la fuente antes de usar esta ficha en una decisión de cumplimiento.

Resumen de cumplimiento

Este resumen está disponible por ahora solo en inglés.

Alcance y aplicabilidad

This standard applies specifically to the feed additive methionine hydroxy analogue (2-hydroxy-4-methylthiobutyric acid) produced via chemical synthesis using acrolein, methyl mercaptan, and hydrocyanic acid as primary raw materials. It is applicable to manufacturers and importers of liquid amino acid analogues intended for animal feed within the Chinese market. It does not cover solid methionine products or other amino acid salts.

Requisitos técnicos

The standard specifies stringent physical and chemical requirements for the product. Physically, it must appear as a brown or dark brown viscous liquid with a characteristic odor, and it carries a strong corrosive warning. Chemically, it sets minimum purity thresholds for the active methionine hydroxy analogue content. Furthermore, the standard regulates safety by establishing maximum limits for contaminants such as arsenic and general heavy metals (calculated as Pb). It also restricts the presence of ammonium salts and strictly mandates that cyanides must not be detected. Compliance with these technical indicators is mandatory for market access.

Métodos de ensayo

The standard outlines specific analytical procedures, including an oxidation-reduction titration method to determine the active ingredient content. Contaminant testing involves dry ashing preparation followed by specific determination methods for arsenic (referencing GB/T 13079-2006), and a colorimetric limit test for heavy metals using sodium sulfide. Additionally, it specifies distillation and colorimetric comparison for ammonium salts, and a specific chemical spot test using alkaline ferrous sulfate paper to verify the absence of cyanides.

Preguntas frecuentes

What products are regulated under GB 7300.103-2020?

This standard applies to chemically synthesized feed additive methionine hydroxy analogue produced using acrolein, methyl mercaptan, and hydrocyanic acid as the main raw materials. Manufacturers importing or producing this specific liquid amino acid analogue for animal feed in China must comply.

Are there any updates from the previous version of this standard?

The new standard replaces GB/T 19371.1-2003. Key updates include modifying the arsenic limit, deleting the lead index and replacing it with a general heavy metal requirement, removing the pH value parameter, and extending the shelf life to 60 months.

Is compliance with GB 7300.103-2020 mandatory?

Chapters 1, 3, and 5 of GB 7300.103-2020 are mandatory, while the remaining chapters are recommended. Compliance with the technical requirements in Chapter 3 is legally required.

The summary above provides a high-level overview of GB 7300.103-2020. To ensure complete compliance for your feed additive products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 7300.103-2020 today to access all detailed parameters, tables, and testing procedures.

Indicaciones de aplicabilidad

Tipo: Producto
CCS: B46
ICS: 65.120
Organismo competente: Ministry of Agriculture and Rural Affairs
Comité técnico: Ministry of Agriculture and Rural Affairs

Relaciones

Sustituye a:GB/T 19371.1-2003