當前位置:上海境宣實業有限公司>>日本光明北川式氣體檢測管>>氣體快速檢測管>> 126SA二氧化碳氣體檢知管126SA Carbon dioxide 0.1-5.2%
室內空氣甲醛檢測管No.713 FORMALDEHYDE 0.01-0
氯乙烯CH2=CHCl氣體測毒管132SC VINYL CHLORID
氯乙烯CH2=CHCl氣體檢知管132SB VINYL CHLORID
二氧化碳氣體檢知管126SA Carbon dioxide 0.1-5.2%
1. PERFORMANCE
1) Measuring range :0.2-5.2% 0.1-2.6%
Number of pump strokes 1/2(50ml) 1(100ml)
2) Sampling time :5 minutes/1 pump stroke
3) Detectable limit :100 ppm(100mr)
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 1 pump stroke
8) Colour change :Pale blue→Pale pink
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
By reacting with alkali, PH indicator is discoloured.
CO2+2NaOH→NaCO3+H2O
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.5
0.4
0.3
0.2
0.1
%
100ml
GAS To pump
Tube No.
126SA CARBON DIOXIDE
TEMPERATURE CORRECTION TABLE
Scale True Concentration (%)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(%) (32°F) (50°F) (68°F) (86°F) (104°F)
3.5 5.5 4.6 3.5 3.2 2.8
3.0 4.7 3.9 3.0 2.7 2.4
2.5 3.9 3.2 2.5 2.2 2.0
2.0 3.1 2.6 2.0 1.8 1.6
1.5 2.4 1.9 1.5 1.4 1.2
1.0 1.6 1.3 1.0 0.9 0.8
0.8 1.3 1.0 0.8 0.7 0.7
0.5 0.8 0.7 0.5 0.5 0.4
0.3 0.5 0.4 0.3 0.3 0.3
0.1 0.2 0.1 0.1 0.1 0.1
Substance Interference ppm Coexistence
Hydrogen sulphide Similar stain is produced. 100 Higher readings are given.
Chloride 〃100 〃
Hydrogen cyanide 〃200 〃
Sulphur dioxide 〃500 〃
(NOTE)
In case of 1 / 2 pump strokes, following formula is available for the actual concentration.
Actual concentration=2×Temperature corrected value.
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