简单介绍： 一氧化碳气体检测管1lc carbon monoxide，measuring range 1 to 30 ppm number of pump strokes 1 correction factor 1 sampling time 4 minutes per pump stroke detecting limit，一氧化......
一氧化碳气体检测管1lc carbon monoxide 产品详情
详情介绍：
一氧化碳气体检测管1lc carbon monoxide
carbonmonoxidelccoperformance
measuring range
1to 30ppm
number of pump strokes
1
correction factor
1
sampling time
4 minutes per pumpstroke
detecting limit
0.5 ppm (n=1)
color change white → palepink
reaction principle
co + paradium salt(white) → pale pink product
coefficient ofvariation 10% (for 1 to 10ppm), 5% (for 10 to 30 ppm)
shelflife 2 years
correctionsfor
temperature & humidity temperature correction is necessary
store the tubes at cool and darkplace.
possible coexisting substances and theirinterferences (note)
substance
concentration
interference
change color by itself
ammonia
- no effect
nodiscoloration
sulfurdioxide
1/20 time
minus error
nodiscoloration
nitrogendioxide
1/20 time
plus error
nodiscoloration
calibration gasgeneration diffusion tubemethod
tlv-twa tlv-stel explosive range
25 ppm - 12.5 to 74%