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硫化氫H2S氣體測毒管120SE HYDROGEN SULPHIDE 0.5-40ppm，硫化氫氣體檢測管,氣體檢測管,檢測管價格,惡臭氣體檢測管，我公司面專業(yè)代理銷售日本硫化氫(120UT)氣體檢測管,并提供日本硫化氫(120UT)氣體檢測管的價格、報價以及日本硫化氫(120UT)氣體檢測管的使用方法等技術(shù)資料，供應(yīng)甲醛、苯、氨、TVOC、硫化氫、二氧化碳氣體檢測管
更新時間：2025-01-01
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硫化氫H2S氣體測毒管120SE HYDROGEN SULPHIDE 0.5-40ppm
1. PERFORMANCE
1） Measuring range ：2-40 ppm 1-20 ppm 0.5-10 ppm
Number of pump strokes 1/2（50ml） 1（100ml） 2（200ml）
2） Sampling time ：1 minute/1 pump stroke
3） Detectable limit ：0.2 ppm（200ml）
4） Shelf life ：2 years
5） Operating temperature ：0～40℃
6） Reading ：Direct reading from the scale calibrated by 1 pump stroke
7） Colour change ：Yellow→Pink
2. RELATIVE STANDARD DEVIATION
RSD-low：10％ RSD-mid.：5％ RSD-high：5％
3. CHEMICAL REACTION
By reacting with mercuric chloride, Hydrogen chloride is produced and PH indicator is discoloured.
H2S＋HgCI2→HgS＋2HCI
4. CALIBRATION OF THE TUBE
PERMEATION TUBE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
20
15
10
5
1
100ml
ppm
（White）
DEHUMIDIFIER
????
Tube No.
120SE HYDROGEN SULPHIDE
Substance Interference Coexistence
Phosphine Similar stain is produced. Higher readings are given.
Mercaptans 〃〃
Nitrogen dioxide Not affected. Lower readings are given.
Ammonia 〃〃
Arsine Higher readings are given.
Hydrogen selenide 〃
Hydrogen cyanide 〃
Sulphur dioxide If possible to read, not affected.
（NOTE）
In case of 1 / 2 and 2 pump strokes, the following equation is available for the actual concentration.
1/2 pump stroke：Actual concentration＝Reading value×2
2 pump strokes：Actual concentration＝Reading value÷2
Coexistence
Interference
0
Methyl mercaptan〔ppm〕?
FIG.1 Influence of Methyl mercaptan
H2S indicating value 〔ppm〕
4
4
2
2
Coexistence
Interference
0
Phosphine〔ppm〕?
FIG.2 Influence of Phosphine
上一篇：120SD硫化氫H2S氣體檢知管120SD HYDROGEN SULPHIDE 1-60ppm
下一篇：120SF硫化氫H2S氣體觀測管120SF HYDROGEN SULPHIDE 25-2000ppm
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