trans-l, 2 – Dic hloroEthylene Standard Solution(1mg/mL Hexane Solution),反-1,2-二氯乙烯标准溶液(1mg/mL己烷溶液中),156-60-6,地表水|trans-l, 2 – Dic hloroEthylene Standard Solution(1mg/mL Hexane Solution)|GB3838-2002《地表水环境质量标准》