中华人民共和国国家环境保护标准HJ1068-2019土壤粒度的测定吸液管法和比重计法Soil—Determinationofparticlesizedistribution—Pipettemethodandhydrometermethod（发布稿）本电子版为发布稿。请以中国环境出版集团出版的正式标准文本为准。2019-12-24发布2020-03-24实施生态环境部发布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干扰和消除.....................................................................................................................................16试剂和材料.....................................................................................................................................27仪器和设备.....................................................................................................................................38样品.................................................................................................................................................59分析步骤.........................................................................................................................................610结果计算与表示...........................................................................................................................811精密度.....................................................................................................................
