题目内容

靛酚蓝分光光度法测氨，当采气体积为5L时，本方法最低检出浓度为0.01mg/m3，测量范围为()
A0.01mg/m3～0.15mg/m3
B0.01mg/m3～2mg/m3
C0.1mg/m3～2.0mg/m3
D0.15mg/m3～1mg/m3

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土壤中氡浓度的检测，测量区域范围应于工程地质勘察范围相同。布点数不应少于()个。
A4
B8
C16
D32

材料中游离甲醛释放量测定的采样体积为()L
A5
B10
C20
D10～20

土壤中氡浓度得测定，每个测试点孔的深度宜为()
A20mm-40mm
B10mm-20mm
C40mm-60mm
D60mm-80mm

甲醛检测的酚试剂分光光度法的测量范围是()
A0.1～1.5g/5ml;V=10L,0.01～0.15mg/m3B
0.2～3.2g/2ml;V=20L,0.02～0.3mg/m3
C1.0～35.0g/10ml;V=10L,0.02～0.7mg/m3
D0.5～10g/2ml;V=20L,0.02～0.3mg/m3