Gastec 6 水蒸气H2O气体检测管 (0.5~32mg/l)

制造商: Gastec
Model: 6
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技术规格
制造商消息

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

Details

Performance

Measuring Range

0.5 to 1 mg/L

1 to 18 mg/L

18 to 32 mg/L

Number of Pump Strokes

Correction Factor

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

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