GB7294-2017

Feed additive-Menadione sodium bisulfite(vitamin K3)

饲料添加剂亚硫酸氢钠甲萘醌（维生素K3）

GB 7294-2017 é uma norma nacional chinesa obrigatória vigente: Feed additive-Menadione sodium bisulfite(vitamin K3). Setor: Alimentos. Foco: Segurança de produtos. Entrada em vigor: 1 de mai. de 2018.

A aplicabilidade depende do escopo do produto, da via de certificação, dos avisos da autoridade competente e das regras de transição. Solicite uma tradução ou verifique a fonte antes de usar este registro em uma decisão de conformidade.

Visão geral de conformidade

Esta visão geral está disponível por enquanto apenas em inglês.

Escopo e aplicabilidade

This standard applies to feed additive Menadione sodium bisulfite (vitamin K3) produced by chemical synthesis, containing 1 to 3 crystal waters. It is mandatory for manufacturers producing vitamin K3 additives for the animal feed industry in China. The standard does not apply to other forms of vitamin K or feed additives not synthesized via this specific chemical process.

Requisitos técnicos

The standard specifies the physical and chemical requirements for Menadione sodium bisulfite. It outlines the required appearance, which should be a white crystalline powder with specific solubility and hygroscopic properties. Furthermore, the standard sets mandatory technical limits for various chemical parameters. These include the minimum active content of menadione, maximum limits for free sodium bisulfite, and moisture content. Manufacturers must strictly adhere to these limits to ensure product efficacy and safety. Safety and purity are also heavily regulated, with strict maximum limits set for heavy metals (such as Lead), total Arsenic, and Chromium. The standard also requires that the solution color and specific chemical reactions (like the menadione sulfonate test) meet defined criteria to prevent impurities.

Métodos de ensaio

- Sensory and Identification Tests: Visual inspection of appearance and chemical identification reactions, including melting point determination according to GB/T 21781. - Content Determination: High-Performance Liquid Chromatography (HPLC) is used as the arbitration method, alongside an alternative Ultraviolet-Visible (UV-Vis) spectrophotometry method to determine the active menadione content. - Impurity and Safety Testing: Includes iodometric titration for free sodium bisulfite, Karl Fischer titration for moisture, and atomic absorption spectroscopy (flame method) for Chromium as per GB/T 13088. Heavy metals and total arsenic are evaluated using specific colorimetric comparison methods.

Perguntas frequentes

What products are regulated under GB 7294-2017?

It regulates Menadione sodium bisulfite (vitamin K3) used as a feed additive, specifically those manufactured via chemical synthesis with 1 to 3 crystal waters.

Are there any updates from the previous version of GB 7294-2017?

Yes, compared to the previous version, this standard changes the arsenic limit from a percentage to a specific mg/kg value, updates the arsenic testing method, and modifies the content calculation to use relative deviation.

What are the mandatory sections of GB 7294-2017?

Chapters 1, 3, and 5 are mandatory, covering the scope, technical requirements, and inspection rules. The remaining chapters are recommended.

The summary above provides a high-level overview of GB 7294-2017. To ensure complete compliance for your 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 7294-2017 today to access all detailed parameters, tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Produto
CCS: B46
ICS: 65.120
Órgão competente: Ministry of Agriculture and Rural Affairs
Comitê técnico: Ministry of Agriculture and Rural Affairs

Relações

Substitui:GB/T 7294-2009