GB7296-2018

Feed additive—Thiamine mononitrate（Vitamin B1）

饲料添加剂硝酸硫胺（维生素B1）

GB 7296-2018 é uma norma nacional chinesa obrigatória vigente: Feed additive—Thiamine mononitrate（Vitamin B1）. Setor: Alimentos. Foco: Segurança de produtos. Entrada em vigor: 1 de jan. de 2020.

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 is applicable to feed additive Thiamine mononitrate (Vitamin B1) produced via chemical synthesis using aminopropionitrile as the raw material. It is mandatory for all manufacturers and importers of this specific feed additive in China. The standard covers technical requirements, testing methods, inspection rules, labeling, packaging, transportation, storage, and shelf life. It replaces the previous version GB/T 7296-2008.

Requisitos técnicos

The standard specifies the physical appearance and chemical composition requirements for Thiamine mononitrate. The product must appear as a white or almost white crystalline powder, slightly soluble in water. Key technical parameters include the content of Thiamine mononitrate (dry basis), which must fall within a specific percentage range. The standard also sets strict limits for loss on drying and residue on ignition to ensure product stability and purity. Safety and environmental parameters are strictly regulated, including maximum limits for heavy metals (as Pb) and total arsenic (as As). Additionally, the standard defines acceptable ranges for acidity (pH) and chloride content. Compliance with all these technical indicators is mandatory for batch release.

Métodos de ensaio

The standard outlines several analytical procedures for verification. Identification involves chemical reactions and infrared spectrophotometry. The primary assay for Thiamine mononitrate content is the silicotungstic acid precipitation method (serving as the arbitration method), alongside an alternative potentiometric titration method. Other tests include visual colorimetry for heavy metals, pH measurement for acidity, and gravimetric analysis for loss on drying and residue on ignition. Total arsenic is determined according to the referenced standard GB/T 13079.

Perguntas frequentes

What products are regulated under GB 7296-2018?

GB 7296-2018 regulates feed additive Thiamine mononitrate (Vitamin B1) synthesized from aminopropionitrile. It applies to all such products manufactured or sold within the Chinese market.

Are there any updates from the previous version of GB 7296-2018?

Yes, compared to GB/T 7296-2008, this version changes the 'lead' indicator to heavy metals (as Pb) with a limit of ≤10.0 mg/kg, adds a total arsenic limit of ≤2.0 mg/kg, and tightens the residue on ignition limit to ≤0.1%. It also introduces a potentiometric titration method for content determination.

What is the shelf life for Thiamine mononitrate under this standard?

Under the specified transportation and storage conditions, and in unopened original packaging, the shelf life of the feed additive Thiamine mononitrate is 24 months.

The summary above provides a high-level overview of GB 7296-2018. 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 7296-2018 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 7296-2008