GB7300.305-2024
Feed additives—Part 3:Minerals and their complexes(or chelates)—Basic copper chloride
饲料添加剂 第3部分：矿物元素及其络（螯）合物 碱式氯化铜
GB 7300.305-2024 is a current mandatory Chinese national standard for Feed additives—Part 3:Minerals and their complexes(or chelates)—Basic copper chloride. It appears in the Food compliance cluster with a product safety focus and has an implementation date of Oct 1, 2025.
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 specifically to feed additives identified as basic copper chloride [Cu2(OH)3Cl], which falls under the category of mineral elements and their complexes. It is applicable to products manufactured from purified copper-containing raw materials through chemical reactions. This standard is mandatory for all manufacturers producing and distributing basic copper chloride feed additives within China. It replaces the previous recommended standard GB/T 21696-2008.
Technical requirements
The standard specifies comprehensive technical requirements for basic copper chloride, encompassing physical, chemical, and hygienic parameters. The product must appear as a light green to dark green powder or granule. Key chemical indicators include strict minimum percentages for the active compound basic copper chloride and copper (Cu) content, alongside specific limits for chlorine (Cl) and water-soluble chlorides. Parameters for drying loss and fineness (passing rate through a 250μm test sieve) are also regulated. Furthermore, the standard enforces rigorous hygienic limits for heavy metals and toxic elements, including total arsenic, lead, cadmium, and mercury. Compliance with both chemical and hygienic limits is mandatory for market access.
Testing methods
The standard outlines specific testing procedures to verify compliance. Identification tests for copper ions and chloride ions are conducted using designated chemical reactions. The primary assay for basic copper chloride and copper content utilizes an iodometric titration method. Chlorine content and water-soluble chlorides are determined via potentiometric titration, referencing GB/T 3050. Heavy metal contaminants such as arsenic, lead, cadmium, and mercury are tested according to corresponding national standards (e.g., GB/T 13079, GB/T 13080). Manufacturers must ensure their laboratory procedures align with these referenced methodologies.
FAQs
What products are regulated under GB 7300.305-2024?
This standard regulates basic copper chloride [Cu2(OH)3Cl], specifically when used as a mineral element feed additive for animals. It applies to products manufactured from purified copper-containing raw materials.
Are there any updates from the previous version of this standard?
The 2024 version is mandatory (transitioning from the previous recommended standard GB/T 21696-2008). It introduces new technical indicators and testing methods for chlorine (Cl), water-soluble chlorides, drying loss, and mercury (Hg). It also updated the limits for total arsenic and removed the acid-insoluble substances requirement.
How does this standard differ from international ISO standards for copper additives?
While the core chemical identification and titration methods share similarities with international practices, GB 7300.305-2024 incorporates specific Chinese national standards (such as GB/T 13079 for arsenic and GB/T 13080 for lead) for impurity testing. Manufacturers must strictly adhere to these localized testing protocols to achieve compliance.
The summary above provides a high-level overview of GB 7300.305-2024. 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 7300.305-2024 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
- National Technical Committee on Feed Industry of Standardization Administration of China
Relationships
Replaces:GB/T 21696-2008