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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>122SA环氧乙烷CH2CH2O气体检测管122SA ETHYLENE OXIDE 0.01-4%

环氧乙烷CH2CH2O气体检测管122SA ETHYLENE OXIDE 0.01-4%

简要描述:

环氧乙烷CH2CH2O气体检测管122SA ETHYLENE OXIDE 0.01-4%,检测管可用于交通:电车、飞机、船舶、公共汽车或长途车等,医疗机构:医院、诊疗所、保健所等,事务所:办公室、会议室、大厅、演艺室等,学校:实验室、教室的空气污染等,公共场所:电影院、剧场、商场、饭店和酒店等,体育与休闲:游泳池、训练场、室内体育设施等,针对突发公共卫生事件应急监测推出的气体应急检测箱等

更新时间:2017-07-09

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环氧乙烷CH2CH2O气体检测管122SA ETHYLENE OXIDE 0.01-4%

环氧乙烷CH2CH2O气体检测管122SA ETHYLENE OXIDE 0.01-4%

Tube No.122SA

1. PERFORMANCE
1) Measuring range :1.0-4.0% 0.01-1.8%
Number of pump strokes :1/2(50ml) 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :50 ppm
4) Shelf life :3 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 :Orange→Dark brown
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Potassium dichomate is reduced.
CH2CH2O+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
􀀀􀀀
(White)
DEHUMIDIFIER
GAS To pump
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.1
0.01
%
122SA ETHYLENE OXIDE
Substance Interference ppm Coexistence
Alcohols FIG.1 Similar stain is produced. Higher readings are given.
Esters FIG.2 〃〃
Ketones 〃〃
Aromatic hydrocarbons 〃〃
Halogenated hydrocarbons WPahleo leb rroewang.ent is discoloured to 0.5% 〃
Ethanol is indicated with half the sensitivity, Ethyl acetate has the same sensitivity with Ethylene oxide.
(NOTE)
1)If the discolouration exceeds the scale, replace the tube with new one and pull the handle at half stroke(to 50mr
line). And read the concentration.
2)Correct the reading value with the temperature correction table first, and convert the value into an actual
concentration by using the conversion scale shown in the instruction sheet.
0
2.0
1.5
1.0
0.5
Methanol〔%〕�
FIG.1 Influence of Methanol
Ethylene oxide indicating value 〔%〕
0.2 0.4 0.6
Coexistence
Interference
0
2.0
1.5
1.0
0.5
Ethyl acetate〔%〕�
FIG.2 Influence of Ethyl acetate
Ethylene oxide indicating value 〔%〕
0.2 0.4 0.6
Coexistence
Interference
TEMPERATURE CORRECTION TABLE
Scale True Concentration (%)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(%) (32°F) (50°F) (68°F) (86°F) (104°F)
1.8 - 2.00 1.80 1.70 1.64
1.6 2.06 1.78 1.60 1.50 1.46
1.4 1.84 1.58 1.40 1.35 1.28
1.2 1.60 1.34 1.20 1.14 1.09
1.0 1.31 1.12 1.00 0.93 0.88
0.8 1.08 0.91 0.80 0.73 0.68
0.6 0.86 0.70 0.60 0.54 0.49
0.4 0.63 0.49 0.40 0.34 0.30
0.2 0.36 0.26 0.20 0.16 0.13
0.1 0.20 0.14 0.10 0.08 0.06
0.01 0.05 0.02 0.01 0.01 0.01
Conversion
scale (I)
(50mR actual value)�
(100mR concentration scale)�

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