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首页>产品中心>日本光明北川式气体检测管>气体快速检测管>120SD硫化氢H2S气体检知管120SD HYDROGEN SULPHIDE 1-60ppm

硫化氢H2S气体检知管120SD HYDROGEN SULPHIDE 1-60ppm

简要描述:

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:2017-12-03

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硫化氢H2S气体检知管120SD HYDROGEN SULPHIDE 1-60ppm

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

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