一氧化碳CO氣體檢測管100 Carbon monoxide 5-1000ppm 返回列表頁

一氧化碳CO氣體檢測管100 Carbon monoxide 5-1000ppm

Tube No.
1. PERFORMANCE
1） Measuring range ：25-1,000 ppm 5-300 ppm
Number of pump strokes 1（100ml） 3（300ml）
2） Sampling time ：3 minutes/1 pump stroke
3） Detectable limit ：1 ppm（300mr）
4） Shelf life ：3 years
5） Operating temperature ：0～40℃
6） Reading ：Concentration chart method
7） Colour change ：Yellow→Dark brown
2. RELATIVE STANDARD DEVIATION
RSD-low：5％　RSD-mid.：5％　RSD-high：5％
3. CHEMICAL REACTION
Pottasium disulphate palladate（II）is reduced, and Palladium is liberated.
CO＋K2Pd（SO3）2→K2（SO3）2PdCO
K2（SO3）2PdCO→CO2＋SO2＋Pd＋K2SO3
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
100 CARBON MONOXIDE
Substance ppm Interference ppm Coexistence
Ethylene 5,000 Pale grey stain is produced. 5,000 The top of discoloured layerbecomes
unclear and higher readings are given.
Whole layer is discoloured to Greyish
Hydrogen 5,000 Greyish yellow stain is produced. 5,000 yellow and the top of discoloured layer
becomes unclear.
Acetylene 1.5 Dark green stain isproduced. C×O c1o/n5c. Higher readings are given.
Sulphur dioxide 100 Original colour is faded. 〃〃
Nitrogen dioxide Tafhfeec atecdc.uracy of readings is not 〃〃
TEMPERATURE CORRECTION TABLE
Chart Correct Concentration （ppm）
Readings 0℃ 10℃ 20℃ 30℃ 40℃
（ppm） （32°F） （50°F） （68°F） （86°F） （104°F）
1,000 870 930 1,000 1,030 1,060
900 780 840 900 930 960
800 690 750 800 830 850
700 610 660 700 720 740
600 520 560 600 620 640
500 430 470 500 520 540
400 350 370 400 410 430
300 260 280 300 310 320
200 180 190 200 210 220
100 90 100 100 100 110
X
1000
900
800
700
600
500
400
300
200
100
50
0
25
X
1000
900
800
700
600
500
400
300
200
100
50
0
25
CARBON MONOXIDE?
LENGTH-OF-STAIN?
?
FOR 1 PUMP STROKE（100ml）?
ppm IN AIR CONCENTRATION
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