中华人民共和国国家生态环境标准HJ1226—2021水质硫化物的测定亚甲基蓝分光光度法Waterquality—Determinationofsulfide—Methylenebluespectrophotometricmethod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。2021-12-16发布2022-03-01实施生态环境部发布MinistryofEcologyandEnvironmentHJHJ1226—2021i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干扰和消除....................................................................................................................................................26试剂和材料....................................................................................................................................................27仪器和设备....................................................................................................................................................38样品................................................................................................................................................................49分析步骤........................................................................................................................................................410结果计算与表示.................................................................
