Gastec 6 水蒸气H2O气体检测管(0.5~32mg / l)

Indicator: 1 to 18 mg/L
Measuring Range: 
+ 0.5 to 1 mg/L, Number of Pump Strokes 2
+ 1 to 18 mg/L, Number of Pump Strokes 1
+ 18 to 32 mg/L, Number of Pump Strokes 1/2
Sampling Time: 45 seconds per pump stroke
Colour Change: Yellowish Green → Purple
Reaction Principle: H2O + Mg(ClO4)2 → Mg(ClO4)2 H2O
Coefficient of Variation: 10% (for 1 to 6 mg/L), 5% (for 6 to 18 mg/L)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Manual tube

Performance
Measuring Range
0.5 to 1 mg/L 1 to 18 mg/L 18 to 32 mg/L
Number of Pump Strokes
2 1 1/2
Correction Factor
1/2 1 by scale
Sampling Time 45 seconds per pump stroke
Detecting Limit 0.1 mg/L (n=2)
Colour Change Yellowish Green → Purple
Reaction Principle H2O + Mg(ClO4)2 → Mg(ClO4)2 H2O
Coefficient of Variation 10% (for 1 to 6 mg/L), 5% (for 6 to 18 mg/L)
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
Alcohols, Ketones, Aldehydes, sulphur dioxide, Hydrogen chloride ≧ 2000 ppm + No
Esters, Acrylonitrile 5000 ppm + No
Ammonia 1000 ppm + No
Nitrogen dioxide,
Hydrogen cyanide
500 ppm + No
Hydrogen sulphide   No No
Calibration gas generation Vaper pressure method
TLV-TWA TLV-STEL Explosive range
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