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當前位置:上海境宣實業(yè)有限公司>>日本光明北川式氣體檢測管>>氣體快速檢測管>> 239S羰基硫化物COS氣體檢測管239S CARBONYL SULPHIDE 5-60ppm
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產(chǎn)品型號239S
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所 在 地上海市
更新時間:2025-03-10 18:54:06瀏覽次數(shù):1503次
聯(lián)系我時,請告知來自 化工儀器網(wǎng)室內(nèi)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
羰基硫化物COS氣體檢測管239S CARBONYL SULPHIDE 5-60ppm
Tube No.239S
1. PERFORMANCE
1) Measuring range :5-60 ppm
Number of pump strokes 1(100ml)
2) Sampling time :2 minutes/1 pump stroke
3) Detectable limit :2 ppm
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary under 20℃(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 1 pump stroke
8) Colour change :Pink→Yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:5% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTI0N
By discomposing with an Oxidizer, Sulphur dioxide is produced. Sulphur dioxide reacts with Alkali and PH
indicator is discoloured.
COS+CrO3+H2SO4→SO2
SO2+2NaOH→Na2SO3+H2O
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY??
????
?? ??
GAS To pump
DETECTOR TUBE
(white) (Yellow)
PRETREAT TUBE
5
10
20
30
40
50
60
100ml
ppm
239S CARBONYL SULPHIDE
Substance Interference Coexistence
Sulphur dioxide Higher readings are given.
Hydrogen sulphide 〃
Carbon disulphide 〃
TEMPERATURE CORRECTION TABLE
Scale Corrected Concentration (ppm)
Readings 0℃ 10℃ 20-40℃
(ppm) (32°F) (50°F) (68-104°F)
60 85 70 60
50 75 60 50
40 60 45 40
30 45 35 30
20 30 25 20
10 15 12 10
5 7 6 5
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