HJ636-2012-水质总氮的测定碱性过硫酸钾消解紫外分光光度法.pdf

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1、中华人民共和国国家环境保护标准HJ636—2012代替GB11894—89水质总氮的测定碱性过硫酸钾消解紫外分光光度法Waterquality-Determinationoftotalnitrogen-AlkalinepotassiumpersulfatedigestionUVspectrophotometricmethod（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。2012-02-29发布2012-06-01实施环境保护部发布目次前言......................................

2、.......................................................................................................II1适用范围.....................................................................................................................................12规范性引用文件.....................

3、....................................................................................................13术语和定义.................................................................................................................................14方法原理...............................

4、......................................................................................................15干扰和消除.................................................................................................................................16试剂和材料............................

5、.....................................................................................................17仪器和设备.................................................................................................................................28样品................................

6、.............................................................................................................29分析步骤.....................................................................................................................................310结果计算与表示...............

7、........................................................................................................311精密度和准确度.......................................................................................................................412质量保证和质量控制............................

8、...................................................................................413注意事