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主页 有毒有害气体快速检测管（用泵） Gastec 14M 便携式气体检测管氯化氢检测管（10-1000ppm）

Gastec 14M 便携式气体检测管氯化氢检测管（10-1000ppm）

Indicator: 20 to 500 ppm
Measuring Range: 
+ 10 to 20 ppm, Number of Pump Strokes 2
+ 20 to 500 ppm, Number of Pump Strokes 1
+ 500 to 1000 ppm, Number of Pump Strokes 1/2
Sampling Time: 45 seconds per pump stroke
Colour Change: Yellow → Red
Coefficient of Variation: 10% (for 20 to 100 ppm), 5% (for 100 to 500 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Details

Catalog

Manual

Performance
Measuring Range
10 to 20 ppm 20 to 500 ppm 500 to 1000 ppm
Number of Pump Strokes
2 1 1/2
Correction Factor
1/2 1 2
Sampling Time 45 seconds per pump stroke
Detecting Limit 2.5 ppm (n=2)
Colour Change Yellow → Red
Reaction Principle Hydrogen chloride reacts with indicator to produce red stain.
HCl + Indicator → Chemical reaction compound
Coefficient of Variation 10% (for 20 to 100 ppm), 5% (for 100 to 500 ppm)
Shelf Life 3 Years
Corrections for temperature & humidity Unnecessary
Store the tubes at cool and dark place.
Possible coexisting substances and their interferences (NOTE)
Substance Concentration Interference Change colour by itself to
Hydrogen fluoride 600 ppm No Red(600 ppm)
Nitric Acid 1/10 time + Red
Nitrogen dioxide 1/2 time No Red(500 ppm)
Calibration gas generation High pressure gas cylinder method
TLV-TWA TLV-STEL Explosive range
- C 2 ppm(2014) -

 

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