Gastec 2HH 快速二氧化碳测量探测管CO2（2.5~40％）

制造商: Gastec
Model: 2HH
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技术规格
制造商消息

Indicator: 5~40%
Measuring Range:
+ 2.5 to 5%, Number of Pump Strokes 1
+ 5 to 40%, Number of Pump Strokes 1/2
Sampling Time: 45 seconds
Colour Change: Orange → Yellow
Reaction Principle: CO2 + 2KOH → K2CO3 + H2O
Coefficient of Variation: 10% (for 5 to 10 %), 5% (for 10 to 40 %)
Nr. of tests: 10
Pump: GV-100S/110S

Details

Performance

Measuring Range

2.5 to 5%

5 to 40%

Number of Pump Strokes

1	1/2 (50 mL)

Correction Factor

Sampling Time

45 seconds

Detecting Limit

0.04% (n=1)

Colour Change

Orange → Yellow

Reaction Principle

CO2 + 2KOH → K2CO3 + H2O

Coefficient of Variation

10% (for 5 to 10 %), 5% (for 10 to 40 %)

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

Ammonia	8%	No	No
Carbon monoxide		No	No
Hydrogen chloride	3%	No	White ( 4000 ppm)
Chlorine	1%	No	White ( 1000 ppm)
Nitrogen dioxides	1/5	No	Pale yellow ( 50 ppm)
Sulphur dioxide	2%	No	Pale yellow ( 2400 ppm)
Ethanol	7%	No	Pale yellow ( 2 %)
Acetic acid	2%	No	Pale yellow ( 4500 ppm)
Hydrogen sulphide	1/15	No	Pale yellow ( 1200 ppm)
Ttimethylamine	10%	No	No
Nitoric oxide		No	No
Ethylene , Propane		No	No