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>> 126B二氧化物氣體檢測管126B Carbon dioxide CO2 0.01-0.7%
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
二氧化物氣體檢測管126B Carbon dioxide CO2 0.01-0.7%
1. PERFORMANCE
1) Measuring range :0.03-0.7% 100-1,500 ppm
Number of pump strokes 1(100ml) 3(300ml)
2) Sampling time :5 minutes/1 pump stroke
3) Detectable limit :20 ppm(300mr)
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Concentration chart method
8) Colour change :Purplish 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→Na2CO3+H2O
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
Tube No.
126B CARBON DIOXIDE
60
Chart True Concentration (%)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(%) (32°F) (50°F) (68°F) (86°F) (104°F)
0.7 0.8 0.75 0.7 0.65 0.6
0.6 0.7 0.65 0.6 0.55 0.5
0.5 0.6 0.55 0.5 0.45 0.4
0.4 0.45 0.4 0.4 0.4 0.35
0.3 0.35 0.3 0.3 0.3 0.25
0.2 0.25 0.2 0.2 0.2 0.2
TEMPERATURE CORRECTION TABLE(3 pump strokes)
Chart True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
1,500 1,800 1,650 1,500 1,400 1,350
1,400 1,700 1,550 1,400 1,300 1,250
1,300 1,550 1,400 1,300 1,250 1,150
1,200 1,450 1,300 1,200 1,150 1,100
1,100 1,300 1,200 1,100 1,050 1,000
1,000 1,200 1,100 1,000 950 900
900 1,100 1,000 900 850 800
800 950 900 800 750 700
700 850 750 700 650 600
600 700 650 600 550 500
500 600 550 500 500 450
400 500 450 400 400 350
300 350 300 300 300 250
200 250 200 200 200 200
TEMPERATURE CORRECTION TABLE (1 pump stroke)
X?
X?
1,500?
1,200?
1,000?
800?
600?
400?
300?
200?
100?
0?
1,500?
1,200?
1,000?
800?
600?
400?
300?
200?
100?
0?
CARBON DIOXIDE?
LOW RANGE?
FOR 3 PUMP STROKES(300mR)?
ppm IN AIR CONCENTRATION
X?
X?
0.7?
0.6?
0.5?
0.4?
0.3?
0.2?
0.15?
0.1?
0.05?
0.03?
0?
0.7?
0.6?
0.5?
0.4?
0.3?
0.2?
0.15?
0.1?
0.05?
0.03?
0?
CARBON DIOXIDE?
LOW RANGE?
FOR 1 PUMP STROKE(100mR)?
PER CENT. IN AIR CONCENTRATION
Substance ppm Interference ppm Coexistence
Chlorine 20 Pale yellowish blue stain is produced.
Sulphur dioxide 100 〃〃
Hydrogen cyanide The accuracy of readings not affected. 〃
Hydrogen sulphide 〃〃
Nitrogen dioxide 30 Pale yellowish blue stain is produced. 〃
When CO2 comcentration is more than 300 ppm,
the accuracy of readings is not affected.
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