中华人民共和国国家环境保护标准HJ656-2013环境空气颗粒物（PM2.5）手工监测方法（重量法）技术规范TechnicalSpecificationsforgravimetricmeasurementmethodsforPM2.5inambientair（发布稿）本电子版为发布稿。请以中国环境科学出版社出版的正式标准文本为准。2013-07-30发布2013-08-01实施环境保护部发布I目次前言..............................................................................................................................................II1适用范围.......................................................................................................................................12规范性引用文件...........................................................................................................................13术语和定义...................................................................................................................................14方法原理.......................................................................................................................................15仪器和设备...................................................................................................................................26采样...............................................................................................................................................37称量...............................................................................................................................................38结果计算与表述...........................................................................................................................49质量保证与质量控制...................................................................................................................4附录A（资料性附录）气密性检查方法.................................................................................6附录B（资料性附录）采样器流量检查校准方法...................................................................7附录C（资料性附录）有机滤膜要求.....................
