GB12379-1990

Regulations of monitoring for environmental nuclearradiations

环境核辐射监测规定

GB 12379-1990 — действующий обязательный национальный стандарт Китая: Regulations of monitoring for environmental nuclearradiations. Отрасль: Медицина. Тема: Безопасность продукции. Дата вступления в силу: 1 дек. 1990 г..

Применимость зависит от продукции, схемы сертификации, уведомлений компетентных органов и переходных правил. Закажите перевод или проверьте источник, прежде чем использовать эту запись в решениях по соответствию.

Обзор требований

Этот обзор пока доступен только на английском языке.

Область применения

This standard establishes the general guidelines for environmental nuclear radiation monitoring within China. It applies to all practices involving the release of radioactive materials into the environment, specifically targeting nuclear facilities (such as uranium mining, fuel manufacturing, and waste disposal) and isotope applications. It is mandatory for all source term units and environmental protection supervision departments conducting such monitoring. The standard does not apply to non-radiological environmental monitoring.

Технические требования

GB 12379-90 outlines the organizational and procedural framework for radiation monitoring. It requires source term units to establish independent monitoring institutions responsible for baseline surveys, routine monitoring, and emergency monitoring. The standard mandates the creation of comprehensive monitoring programs based on the ALARA (As Low As Reasonably Achievable) principle, taking into account factors like discharge levels, critical radionuclides, and population distribution. Facilities must conduct pre-operational environmental baseline surveys for at least two consecutive years to establish reference data. For operational monitoring, sampling points must align with pre-operational survey locations to ensure data continuity. The standard also specifies detailed requirements for sample collection across various environmental media, including air, water, soil, and biological samples, emphasizing the need for representative sampling and contamination prevention.

Методы испытаний

The standard details methodologies for in-situ measurements and laboratory analyses. In-situ measurements require careful planning regarding instrument selection and environmental conditions, with a focus on preventing instrument contamination. Laboratory analysis covers radiochemical separation and radiation measurement, requiring the use of standard procedures, parallel samples, and spiked samples to ensure accuracy. Instruments must be calibrated using standard sources traceable to national standards, and statistical methods must be applied for data distribution testing and central value estimation.

Частые вопросы

What products and facilities are regulated under GB 12379-90?

The standard applies to all environmental nuclear radiation monitoring activities within China. It regulates source term units such as nuclear facilities (from uranium mining to waste disposal) and isotope application sites, as well as the environmental protection supervision departments overseeing them.

Does GB 12379-90 specify specific radiation dose limits for the public?

It establishes general guidelines for monitoring institutions, sampling procedures, and data evaluation. It does not provide specific numerical emission limits, which are typically found in companion documents like GB 8703.

How does GB 12379-90 address quality assurance in radiation monitoring?

The standard mandates that all monitoring instruments be regularly calibrated using standard sources traceable to national standards. It also requires the use of quality control charts, inter-laboratory comparisons, and trained personnel to ensure data reliability.

The summary above provides a high-level overview of GB 12379-90. To ensure complete compliance for your nuclear facilities or isotope applications entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 12379-90 today to access all detailed parameters, sampling procedures, and evaluation methodologies.

Подсказки по применимости

Тип: Метод
CCS: F73
ICS: 13.280
Компетентное ведомство: Ministry of Ecology and Environment
Технический комитет: Ministry of Ecology and Environment