GB21694-2017

Feed additive―Zinc methionine complex (chelate)

饲料添加剂蛋氨酸锌络（螯）合物

GB 21694-2017 es una norma nacional china obligatoria vigente: Feed additive―Zinc methionine complex (chelate). Sector: Alimentos. Enfoque: Seguridad de productos. Entrada en vigor: 1 may 2018.

La aplicabilidad depende del alcance del producto, la vía de certificación, los avisos de la autoridad competente y las reglas de transición. Solicite una traducción o verifique la fuente antes de usar esta ficha en una decisión de cumplimiento.

Resumen de cumplimiento

Este resumen está disponible por ahora solo en inglés.

Alcance y aplicabilidad

This standard applies to feed additives specifically formulated as Zinc methionine complex(chelate) with molar ratios of 2:1 or 1:1, synthesized from zinc sulfate and methionine. It is mandatory for manufacturers producing these specific trace mineral supplements for animal nutrition. The standard does not cover other types of zinc additives or non-chelated zinc compounds.

Requisitos técnicos

The standard outlines the physical appearance and chemical composition requirements for Zinc methionine complex(chelate). It specifies that the product must be a white or off-white powder without any caking or mold, possessing a slight characteristic odor of methionine. Manufacturers must adhere to strict technical indicators including minimum thresholds for zinc and methionine content, as well as chelation rates. The standard also defines maximum limits for moisture content and particle size to ensure product stability and handling properties. Crucially, the standard sets mandatory safety limits for heavy metal contaminants, specifically total arsenic, lead, and cadmium. These parameters are critical for ensuring the safety of animal feed and preventing toxic accumulation in the food chain.

Métodos de ensayo

The standard mandates specific testing protocols, including sensory evaluation and chemical identification using reagents like methanol and chloroform. Quantitative analysis involves iodometric titration for methionine content and references HG 2934-2000 for zinc determination. Chelation rate is measured according to GB/T 13080.2, while heavy metals (arsenic, lead, cadmium) are tested using respective national standard methods. Moisture and particle size are determined using GB/T 6435 and GB/T 5917.1.

Preguntas frecuentes

What products are regulated under GB 21694-2017?

It regulates feed additives known as Zinc methionine complex(chelate) with molar ratios of 2:1 or 1:1.

Are there any updates from the previous version of GB 21694-2017?

Yes, it replaces GB/T 21694-2008, adding chelation rate indicators for 1:1 ratio products and tightening limits for moisture, arsenic, lead, and cadmium in 2:1 ratio products.

Is GB 21694-2017 a mandatory standard?

Yes, Chapters 1, 3, and 5 are mandatory, covering scope, technical requirements, and inspection rules.

The summary above provides a high-level overview of GB 21694-2017. 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 21694-2017 today to access all detailed parameters, tables, and testing procedures.

Indicaciones de aplicabilidad

Tipo: Producto
CCS: B46
ICS: 65.120
Organismo competente: Ministry of Agriculture and Rural Affairs
Comité técnico: Ministry of Agriculture and Rural Affairs

Relaciones

Sustituye a:GB/T 21694-2008