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首頁>產品中心>日本光明北川式氣體檢測管>氣體快速檢測管>122SB環(huán)氧乙烷CH2CH2O氣體檢測管122SB ETHYLENE OXIDE 5-100ppm

環(huán)氧乙烷CH2CH2O氣體檢測管122SB ETHYLENE OXIDE 5-100ppm

簡要描述:

環(huán)氧乙烷CH2CH2O氣體檢測管122SB ETHYLENE OXIDE 5-100ppm,采樣器為吸入負壓式,即拉開與手柄相連的活塞,使缸筒造成負壓,被測氣體在吸入時通過檢測管與管內的化學物質反應變色進行檢測的方式。采樣器設有兩個檔位,檢測時按需要的通氣體積將手柄拉至50或100ml檔位即可,鎖銷自行鎖定,操作極為簡便。

更新時間:2025-03-10

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環(huán)氧乙烷CH2CH2O氣體檢測管122SB ETHYLENE OXIDE 5-100ppm

環(huán)氧乙烷CH2CH2O氣體檢測管122SB ETHYLENE OXIDE 5-100ppm

Tube 22SB
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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