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硫化氢H2S气体测毒管120SE HYDROGEN SULPHIDE 0.5-40ppm

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硫化氢H2S气体测毒管120SE HYDROGEN SULPHIDE 0.5-40ppm,硫化氢气体检测管,气体检测管,检测管价格,恶臭气体检测管,我公司面专业代理销售日本硫化氢(120UT)气体检测管,并提供日本硫化氢(120UT)气体检测管的价格、报价以及日本硫化氢(120UT)气体检测管的使用方法等技术资料,供应甲醛、苯、氨、TVOC、硫化氢、二氧化碳气体检测管

更新时间:2017-08-18

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硫化氢H2S气体测毒管120SE HYDROGEN SULPHIDE 0.5-40ppm

硫化氢H2S气体测毒管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

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