中华人民共和国国家环境保护标准HJ894-2017水质可萃取性石油烃（C10-C40）的测定气相色谱法Water quality—Determination of extractable petroleum hydrocarbons(C10-C40)—Gas chromatography（发布稿）本电子版为发布稿请以中国环境出版社出版的正式标准文本为准2017-12-21发布2018-02-01实施发布环境保护部目次前言.................................................................................................................................................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试剂和材料...................................................................................................................................16仪器和设备...................................................................................................................................27样品...............................................................................................................................................28分析步骤.......................................................................................................................................39结果计算与表示...........................................................................................................................410精密度和准确度.........................................................................................................................511质量保证和质量控制..............