GB/T 16129- 1995 居住区大气中甲醛卫生检验标准方法分光光度法标准曲线绘制拥有不 同含量甲醛且有 2mL 溶液具塞比色管中加入( )5moL/L 氢氧化钾溶液,( )0.5%AHMT 溶液,盖上管塞,轻轻颠倒混匀三次,放置 20min。
A.1.0mL ,1.0mL B.1.5mL ,0.5mL C.0.5mL ,0.5mL D.0.5mL ,1.5mL正确答案A
GB/T 16129- 1995 居住区大气中甲醛卫生检验标准方法分光光度法标准曲线绘制拥有不 同含量甲醛且有 2mL 溶液具塞比色管中加入( )5moL/L 氢氧化钾溶液,( )0.5%AHMT 溶液,盖上管塞,轻轻颠倒混匀三次,放置 20min。
A.1.0mL ,1.0mL B.1.5mL ,0.5mL C.0.5mL ,0.5mL D.0.5mL ,1.5mL正确答案A
