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GB7296-2018
Feed additive—Thiamine mononitrate（Vitamin B1）
饲料添加剂 硝酸硫胺 （维生素B1）
GB 7296-2018 — действующий обязательный национальный стандарт Китая: Feed additive—Thiamine mononitrate（Vitamin B1）. Отрасль: Пищевая. Тема: Безопасность продукции. Дата вступления в силу: 1 янв. 2020 г..
Применимость зависит от продукции, схемы сертификации, уведомлений компетентных органов и переходных правил. Закажите перевод или проверьте источник, прежде чем использовать эту запись в решениях по соответствию.
Обзор требований
Этот обзор пока доступен только на английском языке.
Область применения
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.
Технические требования
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.
Методы испытаний
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.
Частые вопросы
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.
Подсказки по применимости
- Тип
- Продукция
- CCS
- B46
- ICS
- 65.120
- Компетентное ведомство
- Ministry of Agriculture and Rural Affairs
- Технический комитет
- Ministry of Agriculture and Rural Affairs
Связи
Заменяет:GB/T 7296-2008