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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>108SA乙烯H2C=CH2气体检知管108SA ETHYLENE 20-1200ppm

乙烯H2C=CH2气体检知管108SA ETHYLENE 20-1200ppm

简要描述:

乙烯H2C=CH2气体检知管108SA ETHYLENE 20-1200ppm,检测管能冷冻吗?即使说明书中指明该检测管需冷藏保存,也要保证不能被冷冻。检测完毕,需要进行温度的校正吗?需要。检测完毕,应该按照说明书中的修正表或图进行修正。

更新时间:2017-07-23

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乙烯H2C=CH2气体检知管108SA ETHYLENE 20-1200ppm

乙烯H2C=CH2气体检知管108SA ETHYLENE 20-1200ppm

Tube No.108SA

0
1000
500
Carbon monoxide〔ppm〕�
FIG.1 Influence of Carbon monoxide
Ethylene indicating value 〔ppm〕
200 400 0
1000
500
Hydrogen sulphide〔ppm〕�
FIG.2 Influence of Hydrogen sulphide
Bromine indicating value 〔ppm〕
500 1000
Coexistence
Interference
1. PERFORMANCE
1) Measuring range :20-1,200 ppm
Number of pump strokes :1(100ml)
2) Sampling time :3 minutes/1 pump stroke
3) Detectable limit :10 ppm
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 1 pump stroke
8) Colour change :Yellow→Blue
2. RELATIVE STANDARD DEVIATION
RSD-low:5% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Molybdate is reduced and molybdeum blue is produced.
H2C=CH2+PdSO4+(NH4)2MoO4→Mo3O8
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS
DEHUMIDIFIER
(White)
To pump
20
50
100
200
400
600
800
1000
1200
ppm
108SA ETHYLENE
Substance ppm Interference Coexistence
Carbon monoxide FIG.1 10 GWrheoelne. layer is discoloured to Higher readings are given.
Hydrogen sulphide FIG.2 500 Black stain is produced. 〃
Acetylene 20 Similar stain is produced. 〃
Propylene 〃〃
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
1,200 950 1,100 1,200 1,300 1,350
1,000 800 900 1,000 1,050 1,100
800 650 720 800 820 840
600 650 550 600 600 600
400 400 400 400 400 400
200 200 200 200 180 150
100 100 100 100 50 -
50 70 60 50 - -
20 40 30 20 - -

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