GB29384-2012

Acephate technical material

乙酰甲胺磷原药

GB 29384-2012 é uma norma nacional chinesa obrigatória vigente: Acephate technical material. Setor: Alimentos. Foco: Segurança de produtos. Entrada em vigor: 1 de jul. de 2013.

A aplicabilidade depende do escopo do produto, da via de certificação, dos avisos da autoridade competente e das regras de transição. Solicite uma tradução ou verifique a fonte antes de usar este registro em uma decisão de conformidade.

Visão geral de conformidade

Esta visão geral está disponível por enquanto apenas em inglês.

Escopo e aplicabilidade

This standard is applicable to acephate technical material composed of acephate and its production-related impurities. It is mandatory for manufacturers producing acephate technical material for the Chinese market. The standard does not apply to formulated pesticide products, but strictly to the technical material (raw active ingredient) itself.

Requisitos técnicos

The standard specifies the physical and chemical requirements for acephate technical material. Appearance requirements dictate that the product must be a white crystalline powder without visible foreign impurities. Technically, the standard sets strict mass fraction limits for the active ingredient acephate, as well as maximum allowable limits for specific related impurities including acetamide, methamidophos, and O,O,S-trimethyl phosphorothioate. Compliance with these impurity thresholds is critical for product registration and market access. Additionally, the standard regulates the water content and acidity (calculated as H2SO4) of the technical material to ensure chemical stability during storage. The standard also outlines requirements for packaging, labeling, storage, and transportation, referencing GB 3796 for general pesticide packaging rules.

Métodos de ensaio

Identification and quantification are primarily performed using Reversed-Phase High-Performance Liquid Chromatography (HPLC) equipped with a UV detector. This method is used to determine the mass fractions of acephate, acetamide, methamidophos, and O,O,S-trimethyl phosphorothioate. Identification is also confirmed via Infrared Spectroscopy (IR) by comparing the sample's absorption spectrum with that of a standard reference. Water content is determined using the Karl Fischer titration method, while acidity is measured via acid-base titration using a sodium hydroxide standard solution.

Perguntas frequentes

What products are regulated under GB 29384-2012?

GB 29384-2012 regulates acephate technical material (the raw active ingredient), including its active component and production-related impurities. It does not cover finished, formulated pesticide products.

Is GB 29384-2012 a mandatory standard?

Yes, Chapters 3 and 5 of GB 29384-2012 are mandatory, while the remaining chapters are recommended. Manufacturers must comply with the technical requirements and labeling/packaging rules to sell in China.

What are the key impurities controlled in acephate technical material under this standard?

The standard sets maximum limits for three specific impurities: acetamide, methamidophos, and O,O,S-trimethyl phosphorothioate. It also limits water content and overall acidity.

The summary above provides a high-level overview of GB 29384-2012. To ensure complete compliance for your acephate 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 29384-2012 today to access all detailed parameters, tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Produto
CCS: G25
ICS: 65.100.10
Órgão competente: Ministry of Agriculture and Rural Affairs
Comitê técnico: Ministry of Agriculture and Rural Affairs