乙硫醇C2H5SH氣體檢知管165SA ETHYL MERCAPTAN 1-160ppm 返回列表頁

乙硫醇C2H5SH氣體檢知管165SA ETHYL MERCAPTAN 1-160ppm

Tube 65SA
1. PERFORMANCE
1） Measuring range ：4-160 ppm 2-80 ppm 1-40 ppm
Number of pump strokes ：1（100ml） 2（200ml） 4（400ml）
2） Sampling time ：3 minutes/2 pump strokes
3） Detectable limit ：0.2 ppm（200ml）
4） Shelf life ：2 years
5） Operating temperature ：0～40℃
6） Temperature compensation ：Necessary（0～20℃）（See "TEMPERATURE CORRECTION TABLE"）
7） Reading ：Direct reading from the scale calibrated by 2 pump strokes
8） Colour change ：White→Yellow
2. RELATIVE STANDARD DEVIATION
RSD-low：10％　RSD-mid.：10％　RSD-high：5％
3. CHEMICAL REACTION
Ethyl mercaptan reacts with Palladium sulphate.
C2H5SH＋PdSO4→（C2H5S）2Pd＋H2SO4
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
80
70
60
50
40
30
20
10
5 2
200ml
ppm
（White）
H2S REMOVER * * H2S remover is effective up to 40 ppm H2S
165SA ETHYL MERCAPTAN
Substance ppm Interference ppm Coexistence
Carbon monoxide 150 Dark grey stain is produced.
Ethylene 200
Hydrogen sulphide 40 Dark brown stain is produced.
Acetylene Pale brown stain is produced
Methyl mercaptan Reddish yellow stain is produced.
Methyl sulphide 1 Lower readings are given.
Nitrogen dioxide 1 〃
Chlorine 0.2 〃
（NOTE）
1）Max. 40 ppm of Hydrogen sulphide is eliminated by pretreat reagent.
2）In case of 1 or 4 pump strokes, following formula is available for the actual concentration.
Actual concentration＝Temperature corrected value×
TEMPERATURE CORRECTION TABLE
Scale True Concentration （ppm）
Readings 0℃ 10℃ 20-40℃
（ppm） （32°F） （50°F） （68-104°F）
80 91 85 80
70 80 75 70
60 69 64 60
50 57 53 50
40 45 42 40
30 33 31 30
20 21 20 20
2
Number of strokes