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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>167S硒化氢H2Se气体检测管167S HYDROGEN SELENIDE 1-600ppm

硒化氢H2Se气体检测管167S HYDROGEN SELENIDE 1-600ppm

简要描述:

硒化氢H2Se气体检测管167S HYDROGEN SELENIDE 1-600ppm,急性中毒:接触数分钟至3小时内,陆续出现中毒症状:流泪、回痛、咳嗽,伴有胸闷、胸痛。重者进一步发展为化学性肺炎或中毒性肺水肿,患者出现呼吸困难,心跳加快,面色苍白,皮肤粘膜紫绀。接触本品可引起皮疹。现场应急监测方法:气体检测管法

更新时间:2017-12-14

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硒化氢H2Se气体检测管167S HYDROGEN SELENIDE 1-600ppm

硒化氢H2Se气体检测管167S HYDROGEN SELENIDE 1-600ppm

Tube 67S
1. PERFORMANCE
1) Measuring range :5-600 ppm 1-120 ppm
Number of pump strokes 1(100ml) 5(500ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :0.5 ppm(500ml)
4) Shelf life :1 year
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 1 pump stroke
7) Colour change :Pale yellow→Dark brown
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:5%
3. CHEMICAL REACTION
By reacting with Gold chloride(III), Colloidal gold is liberated.
H2Se+AuCI3(III)→Au
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
600
550
500
450
400
350
300
250
200
150
100
50
10
5
100ml
ppm
􀀀􀀀
􀀀􀀀
167S HYDROGEN SELENIDE
Substance ppm Interference ppm Coexistence
Acetylene 3% Higher readings are given.
Carbon monoxide 0.1% 〃
Sulphur dioxide Pale blue stain is produced. 〃
Hydrogen sulphide 10 Brown stain is produced. 〃
Mercury vapours Similar stain is produced.
Arsine 〃10 〃
Iron carbonyl 〃10 〃
Nickel carbonyl 〃10 〃
(NOTE)
When the concentration is below 5 ppm, 5 pump strokes can be used to determine the lower concentration.
Following formula is available for the actual concentration.
Actual concentration=1/5×Reading value

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