GB7300.312-2025
Feed additives—Part 3:Minerals and their complexes (or chelates)—Tricalcium phosphate
饲料添加剂 第3部分：矿物元素及其络（螯）合物 磷酸三钙
GB 7300.312-2025 is an upcoming mandatory Chinese national standard for Feed additives—Part 3:Minerals and their complexes (or chelates)—Tricalcium phosphate. It appears in the Food compliance cluster with a product safety focus and has an implementation date of Jan 1, 2027.
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 tricalcium phosphate produced via high-temperature sintering, chemical precipitation, and calcium phytate hydrolysis processes. It is designed for manufacturers and importers of mineral feed additives in the animal nutrition industry. It is mandatory for all tricalcium phosphate feed additives entering the Chinese market.
Technical requirements
The standard specifies the chemical name, molecular formula (Ca3(PO4)2), and relative molecular mass for tricalcium phosphate. It defines the physical appearance, requiring the product to be a white, grayish-white, or brown powder or granule. It establishes strict physicochemical requirements, including minimum limits for calcium and total phosphorus content, alongside maximum thresholds for acid-insoluble substances, sulfates, and drying loss. The standard also sets a specific particle size criterion to ensure proper feed processing. Furthermore, the standard outlines critical hygiene parameters to ensure animal and human food safety. This includes maximum limits for heavy metals and toxic elements such as fluorine, total arsenic, lead, and chromium. Specifically, products derived from phosphate rock via high-temperature sintering have a distinct, higher tolerance limit for fluorine content.
Testing methods
The standard mandates specific testing procedures to verify compliance. Identification tests confirm the presence of calcium ions and phosphate radicals through chemical precipitation reactions. Quantitative analysis includes EDTA complexometric titration for calcium content, and a gravimetric method using quinoline molybdate reagent for total phosphorus. Gravimetric analysis is also used for determining acid-insoluble substances and sulfates. Hygiene parameters are evaluated using referenced national methods, such as GB/T 13083 for fluorine determination via ion-selective electrode, and GB/T 13080 for lead determination using atomic absorption spectroscopy. Manufacturers must conduct routine出厂检验 covering appearance, calcium, total phosphorus, drying loss, and fluorine before market release.
FAQs
What products are regulated under GB 7300.312-2025?
This standard regulates tricalcium phosphate used as a feed additive. It applies specifically to products manufactured via high-temperature sintering, chemical precipitation, or calcium phytate hydrolysis processes.
Are there any updates from the previous version of GB 7300.312-2025?
The main updates include changes to the appearance and性状 requirements, revised technical limits for fluorine and lead, updated testing methods for fluorine and total arsenic, and modified batching rules. Manufacturers previously complying with the 2017 version must update their compliance to meet the new 2025 thresholds.
How does GB 7300.312-2025 differ from international ISO standards for feed phosphates?
GB 7300.312-2025 is a mandatory Chinese national standard specifically tailored for the domestic feed additive market. It references its own designated testing methods (such as GB/T 13083 for fluorine) and includes specific hygiene limits, such as a distinct fluorine threshold for products manufactured via the high-temperature sintering process using phosphate rock.
The summary above provides a high-level overview of GB 7300.312-2025. 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 7300.312-2025 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 34457-2017 (Current)