GB11930-2010

Radiation protection regulations for handling unsealed source

操作非密封源的辐射防护规定

GB 11930-2010 é uma norma nacional chinesa obrigatória vigente: Radiation protection regulations for handling unsealed source. Setor: Médico. Foco: Segurança de produtos. Entrada em vigor: 1 de set. de 2011.

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

GB 11930-2010 establishes the radiation protection principles and requirements for handling unsealed sources. It specifically applies to laboratory activities involving the production and application of radioactive isotopes. Other activities involving unsealed sources may refer to this standard, but it does not apply to sealed radioactive sources.

Requisitos técnicos

This standard outlines the fundamental principles of radiation protection, emphasizing dose limits, radiation protection optimization (ALARA), and defense-in-depth. It mandates that personal doses, surface contamination control levels, and dose constraints strictly follow the requirements of GB 18871-2002. Facilities must implement multiple layers of protective measures, including interlocks and confinement barriers, to prevent radioactive leakage. For operational safety, the standard requires strict zoning and grading management of workplaces. It details specific conditions for handling radioactive materials, such as using fume hoods, glove boxes, and negative pressure suction devices. Workers must never use bare hands to directly contact radioactive substances and must utilize appropriate personal protective equipment (PPE). The standard also sets comprehensive requirements for radioactive waste management. It prohibits discharging radioactive liquid waste into ordinary sewers and mandates the use of decay methods for short-lived nuclides. Facilities must minimize waste generation from the source and maintain strict accounting for all unsealed sources to prevent loss or theft.

Métodos de ensaio

The standard mandates comprehensive radiation protection monitoring, including personal monitoring (internal and external exposure), workplace monitoring, effluent monitoring, and environmental monitoring. Routine monitoring involves checking surface radioactive contamination, airborne radionuclide concentrations, and radiation levels. Specific monitoring frequencies are determined by the workplace grade (Tier 1, 2, or 3), with higher-tier facilities requiring more frequent assessments.

Perguntas frequentes

What products and activities are regulated under GB 11930-2010?

This standard applies to laboratory activities involving the handling of unsealed sources during the production and application of radioactive isotopes. It is primarily designed for non-sealed radioactive materials rather than solid, encapsulated sealed sources.

Are there any significant updates from the previous GB 11930-1989 version?

The 2010 version introduces new sections for terms and definitions, workplace classification requirements, and accident prevention/emergency response. It also incorporates dose limits and defense-in-depth principles, while removing the previous safety management chapter.

How does GB 11930-2010 relate to international standards like ISO?

The standard heavily references GB 18871-2002 for basic ionizing radiation protection and safety limits. It aligns with international radiation protection principles, requiring dose constraints, ALARA (As Low As Reasonably Achievable) optimization, and strict controlled area zoning.

The summary above provides a high-level overview of GB 11930-2010. To ensure complete compliance for your radioactive isotope operations entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 11930-2010 today to access all detailed parameters, classification tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Segurança
CCS: F70
ICS: 13.280
Órgão competente: Ministry of Ecology and Environment
Comitê técnico: Ministry of Ecology and Environment

Relações

Substitui:GB 11930-1989