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Gastec 1La 빠른 측정 감지기 튜브 일산화탄소 CO (8 ~ 1000ppm)

Indicator: 25~500ppm
Measuring Range: 
+ 8 to 12.5 ppm, Number of Pump Strokes 3
+ 12.5 to 25 ppm, Number of Pump Strokes 2
+  25 to 500 ppm, Number of Pump Strokes 1
+ 500 to 1000 ppm, Number of Pump Strokes 1/2
Sampling Time:  2 minutes per pump stroke
Colour Change: Yellow → Blackish brown
Reaction Principle: CO + Na2Pd(SO3)2 → Pd + CO2 + SO2+Na2SO3
Coefficient of Variation: 10% (for 25 to 100 ppm), 5% (for 100 to 500 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Details

Catalog

Manual

Manual tube

Performance
Measuring Range
8 to 12.5 ppm 12.5 to 25 ppm 25 to 500 ppm 500 to 1000 ppm
Number of Pump Strokes
3 2 1 1/2
Correction Factor
1/3 1/2 1 2
Sampling Time 2 minutes per pump stroke
Detecting Limit 2 ppm (n=3)
Colour Change Yellow → Blackish brown
Reaction Principle CO + Na2Pd(SO3)2 → Pd + CO2 + SO2+Na2SO3
Coefficient of Variation 10% (for 25 to 100 ppm), 5% (for 100 to 500 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 colour by itself to
Acetylene 1/50 time + Blackish brown
Ethylene 2000 ppm No Few minutes later, whole layer turns to brown.
Hydrogen 5000 ppm + Blackish brown (whole layer)(1%)
sulphur dioxide 1/10 time + Blackish brown
Nitrogen dioxide 40 ppm + Red (60 ppm)
Carbon disulphide 1/50 time + Blackish brown
Halogens 1/5 time + Blackish brown
Mercaptans 1/5 time + Blackish brown
Hydrogen sulphide 1/5 time + Blackish brown
Calibration gas generation High pressure gas cylinder method
TLV-TWA TLV-STEL Explosive range
25 ppm(2014) - 12.5 to 74%

 

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