Gastec 6LP 水蒸气检测管Water vapor气体探测管(3-100LB / MMCF)

Indicator: 3 to 40 LB/MMCF
Measuring Range: 
+ 3 to 40 LB/MMCF, Number of Pump Strokes 1
+ 40 to 100 LB/MMCF, Number of Pump Strokes 1/2
Sampling Time: 1.5 minute  per pump stroke
Colour Change: Yellow → Green
Reaction Principle: H2O + Mg(ClO4)2 → Mg(ClO4)2 H2O
Coefficient of Variation: 10% (for 3 to 10 LB/MMCF), 5% (for 10 to 40 LB/MMCF)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Manual tube

Performance
Measuring Range
3 to 40 LB/MMCF 40 to 100 LB/MMCF
Number of Pump Strokes
1 1/2
Correction Factor
1 2.5
Sampling Time 1.5 minutes per pump stroke
Detecting Limit 2 LB/MMCF (n=1)
Colour Change Yellow → Green
Reaction Principle H2O + Mg(ClO4)2 → Mg(ClO4)2 H2O
Coefficient of Variation 10% (for 3 to 10 LB/MMCF), 5% (for 10 to 40 LB/MMCF)
Shelf Life 3 Years
Corrections for temperature & humidity Temperature correction is necessary
Store the tubes at cool and dark place.
*(may become purple with high humidity)
Possible coexisting substances and their interferences (NOTE)
Substance Concentration Interference Change colour by itself to
Sulphur dioxide ≦ 15ppm No No
Nitrogen dioxide,Hydrogen sulphide ≦ 30ppm No No
Hydrogen cyanide ≦ 45ppm No No
Methyl ethyl ketone ≦ 70ppm No No
Ethyl acetate ≦ 100ppm No No
Acrylonitrile ≦ 55ppm No No
Acetaldehyde 50 ppm No No
Methanol ≧ 100 ppm + Green
Triethylene glycol   No No

 

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