GB14882-1994

Limited concentrations of radioactive materials in foods

食品中放射性物质限制浓度标准

GB 14882-1994 é uma norma nacional chinesa obrigatória vigente: Limited concentrations of radioactive materials in foods. Setor: Alimentos. Foco: Segurança de produtos. Entrada em vigor: 1 de set. de 1994.

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 various food categories including grains, tubers (such as sweet potatoes, potatoes, and cassava), vegetables and fruits, meat, fish, shrimp, and dairy products. It is mandatory for all food producers and importers dealing with these categories in the Chinese market. The standard does not apply to non-food items or industrial materials.

Requisitos técnicos

The standard specifies the derived limit concentrations (referred to as limit concentrations) for 12 types of radioactive substances in major food categories. These include both artificial radionuclides (such as 3H, 89Sr, 90Sr, 131I, 137Cs, 147Pm, and 239Pu) and natural radionuclides (such as 210Po, 226Ra, 228Ra, natural thorium, and natural uranium). The limit concentrations are derived based on the assumption that a single food category is contaminated by a single radionuclide, calculated using the Annual Limit on Intake (ALI) and the average daily consumption of the most consuming population group. For natural radionuclides, the limit includes the average background concentration of that food category. For scenarios involving multiple foods and/or multiple radionuclides, a comprehensive radiological health evaluation must be conducted to ensure the sum of the ratios of actual concentration to limit concentration does not exceed 1. This evaluation must also account for other irradiation pathways to ensure overall safety.

Métodos de ensaio

Testing and inspection procedures for radioactive substances in foods should be conducted in accordance with the referenced standards GB 14883.1~14883.10. The standard provides the framework for calculating compliance but relies on these specific testing methodologies for actual measurement and verification of radionuclide concentrations.

Perguntas frequentes

What products are regulated under GB 14882-1994?

GB 14882-1994 regulates the limited concentrations of radioactive materials in major food categories, including grains, tubers, vegetables, fruits, meat, fish, shrimp, and dairy products.

How are the limit concentrations derived in GB 14882-1994?

The limit concentrations are derived based on the Annual Limit on Intake (ALI) and the average daily consumption of the most consuming population group, assuming single food and single radionuclide contamination. For natural radionuclides, the background concentration is added.

What happens if multiple foods or radionuclides are involved?

If multiple foods and/or radionuclides are involved, a comprehensive radiological health evaluation is required. The sum of the ratios of actual concentration to the respective limit concentration must not exceed 1, and other irradiation pathways must also be considered.

The summary above provides a high-level overview of GB 14882-1994. 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 14882-1994 today to access all detailed parameters, tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Saúde e higiene
CCS: C53
ICS: 67.040
Órgão competente: National Health Commission
Comitê técnico: National Health Commission