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二氧化碳CO2气体测毒管126SG CARBON DIOXIDE 0.02-1.4%
1. PERFORMANCE
1) Measuring range :0.02-0.7% 0.04-1.4%
Number of pump strokes 1(100ml) 1/2(50ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :0.001%
4) Shelf life :1 year
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 1 pump stroke
7) Colour change :Pink→Yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
CO2+ 2NaOH→Na2CO3+H2O
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
0.4
0.5
0.6
0.7
0.3
0.2
0.1
0.08
0.06
0.04
0.02
%�
(White)
DEHUMIDIFIER
Tube No.
126SG CARBON DIOXIDE
Substance Interference Coexistence
Hydrogen cyanide Similar stain is produced. Higher readings are given.
Hydrogen chloride Under the TLV conc. The accuracy of readings is not affected.
Chlorine 〃〃
Hydrogen sulphide 〃〃
Nitrogen dioxide 〃〃
Sulphur dioxide 〃〃
Ammonia 〃〃
(NOTE)
In case of 1 / 2 pump strokes, following formula is available for the actual concentration.
Actual concentration=2×Reading value
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