GB7300.303-2022
Feed additives—Part 3： Minerals and their complexes (or chelates)—Potassium iodate
饲料添加剂 第3部分：矿物元素及其络（螯）合物 碘酸钾
GB 7300.303-2022 is a current mandatory Chinese national standard for Feed additives—Part 3： Minerals and their complexes (or chelates)—Potassium iodate. It appears in the Food compliance cluster with a product safety focus and has an implementation date of Jan 1, 2024.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to feed additive potassium iodate produced using iodine and potassium chlorate or potassium hydroxide as raw materials through oxidation or electrolysis methods. It is mandatory for manufacturers producing mineral feed additives for the Chinese market. It does not apply to other forms of iodine or non-feed-grade chemical reagents.
Technical requirements
The standard specifies the physical and chemical requirements for potassium iodate (KIO3). It defines the appearance as a white crystalline powder without odor. Technically, it mandates strict purity levels for the active ingredient on a dry basis, alongside specific limits for loss on drying and pH value. Furthermore, the standard sets crucial safety thresholds for harmful impurities, including chlorides, chlorates, iodides, heavy metals (as Pb), and total arsenic. Compliance with these chemical and physical limits is essential to ensure animal feed safety. The document also outlines the rules for labeling, packaging, transportation, and storage to maintain product integrity.
Testing methods
The standard outlines specific analytical procedures to verify compliance. It includes sensory evaluation for appearance and odor, and chemical identification tests for iodate and potassium ions. Quantitative analysis involves a titrimetric method using sodium thiosulfate to determine the exact potassium iodate content. Impurity levels are evaluated using nephelometry and colorimetry for chlorides, iodides, and heavy metals. Total arsenic is measured via the silver diethyldithiocarbamate (Ag-DDTC) spectrophotometric method, referencing GB/T 13079-2006. Manufacturers must follow these prescribed laboratory procedures for batch release and type testing.
FAQs
What products are regulated under GB 7300.303-2022?
This standard regulates potassium iodate used as a mineral feed additive for animals. It applies specifically to products manufactured via oxidation or electrolysis methods using iodine and potassium chlorate or potassium hydroxide as raw materials.
How does GB 7300.303-2022 relate to other feed additive standards?
It is part of the broader GB 7300 series for feed additives, specifically falling under Part 3, which focuses on minerals and their complexes (or chelates). It sets mandatory quality and safety limits for this specific iodine source.
What are the mandatory factory inspection items before product release?
The standard requires strict batch testing for appearance, potassium iodate content, loss on drying, iodides, and heavy metals. Any non-compliant item requires double sampling for re-testing, and failure results in the entire batch being rejected.
The summary above provides a high-level overview of GB 7300.303-2022. 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 7300.303-2022 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Product
- CCS
- B46
- ICS
- 65.120
- Competent department
- Ministry of Agriculture and Rural Affairs
- Technical committee
- Ministry of Agriculture and Rural Affairs