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硫化氫H2S氣體檢知管120SD HYDROGEN SULPHIDE 1-60ppm，接觸高濃度硫化氫后以腦病表現為顯蓍，出現頭痛、頭暈、易激動(dòng)、步態(tài)蹣跚、煩躁、意識模糊、譫妄、癲癇樣抽搐可呈全身性強直一陣攣發(fā)作等；可突然發(fā)生昏迷；也可發(fā)生呼吸困難或呼吸停止后心跳停止。眼底檢查可見(jiàn)個(gè)別病例有視神經(jīng)乳頭水腫。部分病例可同時(shí)伴有肺水腫。
更新時(shí)間：2024-07-14
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硫化氫H2S氣體檢知管120SD HYDROGEN SULPHIDE 1-60ppm
1. PERFORMANCE
1） Measuring range ：2-60 ppm 1-30 ppm
Number of pump strokes 1/2（50ml） 1（100ml）
2） Sampling time ：1 minute/1 pump stroke
3） Detectable limit ：0.2 ppm（100ml）
4） Shelf life ：3 years
5） Operating temperature ：0～40℃
6） Reading ：Direct reading from the scale calibrated by 1 pump stroke
7） Colour change ：White→Pale brown
2. RELATIVE STANDARD DEVIATION
RSD-low：10％ RSD-mid.：5％ RSD-high：5％
3. CHEMICAL REACTION
By reacting with Lead acetate（II）, Lead sulphide is produced.
H2S＋Pb（CH3COO）2→PbS＋2CH3COOH
4. CALIBRATION OF THE TUBE
PERMEATION TUBE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
135
10
15
20
25
30
100ml
ppm
????
Tube No.
120SD HYDROGEN SULPHIDE
（NOTE）
In case of 1 /2 pump strokes, following formula is available for the actual concentration.
Actual concentration＝2×Reading value
Substance Interference ppm Coexistence
Sulphur dioxide FIG.1 aTfhfeec atecdc.uracy of readings is not 10 Higher readings are given.
Mercaptans FIG.2 〃300 〃
Nitrogen dioxide FIG.3 〃2 Lower readings are given.
0
60
80
20
40
Sulphur dioxide〔ppm〕?
FIG.1 Influence of Sulphur dioxide
Hydrogen sulphide indicating value 〔ppm〕
200 400
100ml
0
60
80
20
40
Ethyl mercaptan〔ppm〕?
FIG.2 Influence of Ethyl mercaptan
Hydrogen sulphide indicating value 〔ppm〕
200 400 600
100ml
0
150
50
100
Nitrogen dioxide〔ppm〕?
FIG.3 Influence of Nitrogen dioxide
上一篇：120SC硫化氫H2S氣體檢測管120SC HYDROGEN SULPHIDE 0.005-0.16%
下一篇：120SE硫化氫H2S氣體測毒管120SE HYDROGEN SULPHIDE 0.5-40ppm
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