中华人民共和国国家生态环境标准HJ1287—2023固定污染源废气烟气黑度的测定林格曼望远镜法Stationarysourceemission—Determinationofblacknessofsmokeplumes—Ringelmannsmoketelescope本电子版为正式标准文本，由生态环境部环境标准研究所审校排版。2023-02-09发布2023-08-01实施生态环境部发布HJ1287—2023i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观测方法...........................................................................................................................................................27现场观测记录...................................................................................................................................................38结果计算与表示...............................................................................................................................................39精密度...............................................................................................................................................................410质量保证和质量控制..................................................
