检测认证人脉交流通讯录
- 二氧化硫检测管5DH sulphur dioxide SO2，Measuring Range 10 to 600 ppm Sampling Hours 1 to 5 hours Detecting Limit 1 ppm (5 hours) Color Change Bluish purple → White Reaction Principle二氧化硫检测管价格
二氧化硫检测管5DH sulphur dioxide的详细介绍
二氧化硫检测管5DH sulphur dioxide sulphur dioxide No.5DH
SO2
Performance
Measuring Range
10 to 600 ppm
Sampling Hours
1 to 5 hours
Detecting Limit
1 ppm (5hours)
Color Change
Bluishpurple → White
Reaction Principle
SO2 + I2+H2O → 2HI + H2SO4
Coefficient ofVariation 10%(for 50 to 600 ppmr)
ShelfLife 3 Year
Correctionsfor
temperature & humidity Temperature correction isnecessary
Store the tubes atcool and dark place.
Possible coexisting substances and theirinterferences (NOTE)
Substance
Concentration
Interference
Change color by itself
Nitrogendioxide
-
No
Hydrogen sulphide
+
White
Calibration gasgeneration Diffusion tubemethod
TLV-TWA TLV-STEL Explosive range
2 ppm 5 ppm -
