GB7300.302-2019
Feed additives—Part 3：Minerals and their complexes (or chelates)—Sodium selenite
饲料添加剂 第3部分：矿物元素及其络（螯）合物 亚硒酸钠
GB 7300.302-2019 is a current mandatory Chinese national standard for Feed additives—Part 3：Minerals and their complexes (or chelates)—Sodium selenite. It appears in the Food compliance cluster with a product safety focus and has an implementation date of Jul 1, 2020.
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 sodium selenite generated by the reaction of sodium hydroxide and selenious acid. It covers the technical requirements, testing methods, inspection rules, labeling, packaging, and storage for this specific product. This standard is mandatory for all manufacturers of sodium selenite feed additives in China. It is not applicable to other mineral feed additives.
Technical requirements
The standard specifies the physical and chemical requirements for sodium selenite, including its appearance as a white powder and positive identification reactions for selenite and sodium ions. It establishes strict technical indicators for the main active ingredient content, calculated on a dry basis. Furthermore, it sets maximum limits for heavy metals and impurities, specifically lead, cadmium, arsenic, and mercury, as well as a limit for loss on drying. Compliance with these technical indicators is mandatory for market access. The product must also pass a solubility test, requiring it to be fully dissolved and clear in solution.
Testing methods
Testing involves sensory inspection and chemical identification procedures. The main content of sodium selenite is determined via titration using sodium thiosulfate as the standard solution. Heavy metals such as lead and cadmium are quantified using atomic absorption spectrophotometry with an air-acetylene flame. Arsenic content is measured according to the procedures in GB/T 13079-2006, while mercury content is determined using ICP-OES (Inductively Coupled Plasma Optical Emission Spectrometry).
FAQs
What products are regulated under GB 7300.302-2019?
It regulates feed additive sodium selenite produced from the reaction of sodium hydroxide and selenious acid.
Is GB 7300.302-2019 mandatory?
Yes, Chapters 1, 4, 5, and 6 of this standard are mandatory, covering scope, technical requirements, testing methods, and inspection rules.
What are the key impurities limited by this standard?
The standard sets maximum limits for heavy metals including lead, cadmium, arsenic, and mercury to ensure the safety of the feed additive.
The summary above provides a high-level overview of GB 7300.302-2019. 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 7300.302-2019 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