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硫化氢H2S气体检知管120SD HYDROGEN SULPHIDE 1-60ppm,接触高浓度硫化氢后以脑病表现为显蓍,出现头痛、头晕、易激动、步态蹒跚、烦躁、意识模糊、谵妄、癫痫样抽搐可呈全身性强直一阵挛发作等;可突然发生昏迷;也可发生呼吸困难或呼吸停止后心跳停止。眼底检查可见个别病例有视神经乳头水肿。部分病例可同时伴有肺水肿。
更新时间:2024-10-06
在线留言硫化氢H2S气体检知管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硫化氢H2S气体检测管120SC HYDROGEN SULPHIDE 0.005-0.16%
下一篇:120SE硫化氢H2S气体测毒管120SE HYDROGEN SULPHIDE 0.5-40ppm
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