核设施烟囱和管道气载放射性排放物的取样监测——美国新标准介绍(一)

Sampling and Monitoring Releases of Airborne Radioactive Substances from the Stacks and Ducts of Nuclear Facilities- Introduction to New Standards of the America: Part I

对于核设施烟囱和管道的气载放射性排放物的取样监测 ,美国发布了新的标准。该标准对烟囱的取样位置和烟囱取样系统给出了有关的性能标准 ;对取样入口、传输管道 (取样管 )、取样收集介质、样品测量仪器以及流量测定方法提供了技术规范 ,同时 ,该标准对取样程序、质量保证、取样系统的优化更新以及系统的检测维修等问题也给予了论证。美国的这一新标准将可能是修订目前一直沿用着的 ISO2 889-1 975标准的蓝本 ,因此 。

New standards have been published in America for sampling and monitoring the emissions of airborne radioactive substances in the stacks or ducts of nuclear facilities. The standards provided performance criteria for the sampling location in stacks or ducts and the sampling and monitoring system of stacks or ducts. These criteria cover the air sampling probes, transport lines, sampling collectors and samples monitoring instruments and gas flow measuring methods. The standards also discusse sampling program objectives, quality assurance, sampling system optimization and system performance verification, et al. The standards would be the original version to revise the ISO standards (ISO 2889 1975) that has been used since 1975. It would be useful to understand this standard.