题目内容
(请给出正确答案)
[主观题]
环境测试舱法测试地毯、帷幕的游离甲醛释放量时,试样在试验条件下,在测试舱内持续放置时间应
为()
A12h
B24h
C48h
D7天
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A12h
B24h
C48h
D7天
第3题
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
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