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二氧化碳CO2检测管126SH CARBON DIOXIDE 1-20%

简要描述:

二氧化碳CO2气体测毒管126SG CARBON DIOXIDE 0.02-1.4% 126SH CARBON DIOXIDE 1-20% 气体检测管,迅速、简单、准确地对所有气体进行检测和测定的直读式气体检测管。直读式气体检测管

更新时间:2017-07-14

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二氧化碳CO2检测管126SH CARBON DIOXIDE 1-20%

二氧化碳CO2检测管126SH CARBON DIOXIDE 1-20%

Tube No.
1. PERFORMANCE
1) Measuring range :1-20%
Number of pump strokes 1(100ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :0.2%
4) Shelf life :2 years
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:5% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
By reacting with alkali, PH indicator is discoloured.
CO2+2KOH→K2CO3+H2O
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
%
12
4
6
8
10
12
14
16
18
20
GAS To pump
126SH CARBON DIOXIDE
Substance ppm Interference ppm Coexistence
Similar stain is produced,but if there
Nitrogen dioxide FIG.1 50 White stain is produced. 50 is more than 3%of CO2,the accuracy
of readings is not affected.
Sulphur dioxide FIG.2 3,000 Similar stain is produced. 3,000 Higher readings are given.
Hydrogen sulphide FIG.3 4,000 〃3,000 〃
0
10
5
Sulphur dioxide〔ppm〕�
FIG.2 Influence of Sulphur dioxide
Carbon dioxide
indicating value 〔%〕
2000 4000 6000
Coexistence
Interference
0
10
5
Nitrogen dioxide〔ppm〕�
FIG.1 Influence of Nitrogen dioxide
Carbon dioxide
indicating value 〔%〕
500 1000
Coexistence
Interference
0
10
5
Hyrogen sulphide〔ppm〕�
FIG.3 Influence of Hydrogen sulphide
Carbon dioxide
indicating value 〔%〕
2000 4000 6000
Coexistence
Interference
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