简单介绍： 1-丁醇气体检测管114 1-butanol，1-丁醇气体检测管114 ch3ch2ch2ch2oh (ch3(ch2)3oh) 1-butanol，measuring range 10 to 150 ppm number of pump strokes 3 correction factor 1 sampling，1-......
1-丁醇气体检测管114 1-butanol 产品详情
详情介绍：
1-丁醇气体检测管114 1-butanol
1-butanol 14ch3ch2ch2ch2oh (ch3(ch2)3oh)performance
measuring range
10 to 150 ppm
number of pump strokes
3
correction factor
1
sampling time
3 minutes per pump stroke
detecting limit
1 ppm (n=3)
color change
yellow → pale blue
reaction principle
ch3(ch2)3oh + cr6++ h3po4 → cr3+
coefficient of variation 15% (for 2.5 to 30 ppm), 10% (for 30 to 150 ppm)
shelf life 3 years
corrections for
temperature & humidity temperature correction is necessary
store the tubes at cool and dark place.
possible coexisting substances and their interferences (note)
substance
concentration
interference
change color by itself
alcohols
- plus error
produce similar stain by themselves.
calibration gas generation diffusion tube method
tlv-twa tlv-stel explosive range
20ppm - 1.4 to 11.2%