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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>122SB环氧乙烷CH2CH2O气体检测管122SB ETHYLENE OXIDE 5-100ppm

环氧乙烷CH2CH2O气体检测管122SB ETHYLENE OXIDE 5-100ppm

简要描述:

环氧乙烷CH2CH2O气体检测管122SB ETHYLENE OXIDE 5-100ppm,采样器为吸入负压式,即拉开与手柄相连的活塞,使缸筒造成负压,被测气体在吸入时通过检测管与管内的化学物质反应变色进行检测的方式。采样器设有两个档位,检测时按需要的通气体积将手柄拉至50或100ml档位即可,锁销自行锁定,操作极为简便。

更新时间:2017-07-14

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环氧乙烷CH2CH2O气体检测管122SB ETHYLENE OXIDE 5-100ppm

环氧乙烷CH2CH2O气体检测管122SB ETHYLENE OXIDE 5-100ppm

Tube No.122SB
1. PERFORMANCE
1) Measuring range :5-100 ppm
Number of pump strokes 2(200ml)
2) Sampling time :3 minutes/2 pump strokes
3) Detectable limit :0.5 ppm(200ml)
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 2 pump strokes
8) Colour change :Pink→Yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
By decomposing with an Oxidizer, Formic acid is produced and PH indicator is discoloured.
CH2CH2O+H2SO4→HOCH2CH2OH
HOCH2CH2OH+HIO4→2HCHO+HIO3+H2O
HCHO+HIO4+H2SO4→HCO2H+HIO3
HCO2H+NaOH→Na(HCOO)+H2O
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
􀀀􀀀
GAS To pump
DETECTOR TUBE
(White)
PRETREAT TUBE
100
80
60
40
20
10
5
􀀀􀀀
􀀀􀀀
􀀀􀀀
122SB ETHYLENE OXIDE
Substance Interference Coexistence
Formaldehyde Similar stain is produced. Higher readings are given.
Propylene 〃〃
Acetone Ytheell ogwas s itnalient ies dpgroed. uced a little on Lower readings are given.
Diethyl ether Plitatlele o onr athneg eg assta ininle its e pdrgoed.uced a 〃
TEMPERATURE CORRECTION TABLE
Scale Corrected Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
100 - 125 100 80 70
80 - 100 80 64 56
60 140 75 60 48 42
40 80 50 40 32 28
20 32 25 20 17 14
10 15 12 10 9 7
5 7 6 5 5 4

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