GB7300.308-2025

Feed additives—Part 3: Minerals and their complexes (or chelates) —Zinc threoninate chelate

饲料添加剂第3部分：矿物元素及其络(螯)合物苏氨酸锌螯合物

GB 7300.308-2025 は施行予定の中国強制国家規格です：Feed additives—Part 3: Minerals and their complexes (or chelates) —Zinc threoninate chelate。業界：食品。テーマ：製品安全。施行日：2026年7月1日。

適用可否は製品範囲、認証ルート、所管当局の通知、移行規定によって異なります。コンプライアンス判断に使う前に、翻訳をご依頼いただくか公式情報源をご確認ください。

コンプライアンス概要

この概要は現在英語のみで提供しています。

適用範囲

This standard applies specifically to feed additive zinc threoninate chelate products synthesized from threonine and zinc oxide. It is mandatory for manufacturers producing mineral element feed additives for the Chinese market. The regulation covers technical requirements, testing rules, labeling, packaging, and storage for this specific zinc chelate product.

技術要求

The standard defines the chemical identity of the product, specifying the molecular formula as C8H16N2O6Zn·2H2O with a relative molecular mass of 337.63. It mandates that the product must appear as colorless semi-transparent crystals or a whitish crystalline powder without off-odors. Identification tests must confirm the presence of threonine, zinc ions, and the specific chelate structure. For physicochemical parameters, the standard sets strict thresholds for active ingredient content, including minimum limits for zinc threoninate (calculated as Zn) and total threonine. It also enforces a minimum chelation rate to ensure product efficacy, alongside limits for loss on drying and specific particle size pass rates. Regarding hygiene and safety, the regulation establishes maximum allowable limits for heavy metals and toxic elements, specifically total arsenic, lead, and cadmium. Compliance with these hygiene limits is critical for animal feed safety.

試験方法

The standard outlines specific analytical procedures, including EDTA complexometric titration for determining zinc content and chelation rates. Total threonine is measured using an amino acid analyzer (as the arbitration method) or the Kjeldahl method for nitrogen determination. Additionally, Infrared Spectroscopy (IR) is utilized to verify the chelate structure. Heavy metals are tested using atomic absorption spectroscopy and colorimetric methods referenced in companion GB/T standards.

よくある質問

What products are regulated under GB 7300.308-2025?

This standard specifically regulates zinc threoninate chelate used as a feed additive. It applies to products synthesized chemically from threonine and zinc oxide.

When does GB 7300.308-2025 become effective and is it a new standard?

It is a newly released standard published on June 30, 2025, and will become mandatory starting July 1, 2026. It establishes the official national requirements for this specific mineral chelate product.

How does GB 7300.308-2025 relate to other testing standards?

The standard references several methodologies aligned with international practices, such as using the Kjeldahl method for nitrogen determination (GB/T 6432) and atomic absorption spectroscopy for lead testing (GB/T 13080). However, it sets specific Chinese national limits for heavy metals and chelation rates that must be strictly followed for CCC or market access.

The summary above provides a high-level overview of GB 7300.308-2025. 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 7300.308-2025 today to access all detailed parameter tables, chemical formulas, and step-by-step testing procedures.

適用のヒント

種別: 製品
CCS: B46
ICS: 65.120
所管部門: Ministry of Agriculture and Rural Affairs
技術委員会: National Technical Committee on Feed Industry of Standardization Administration of China