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丁基甲基酮?dú)怏w檢測(cè)管237S Methyl butyl ketone 5-80ppm 醋酸乙烯酯CH3(CH2)3COCH3氣體檢測(cè)管237S VINYL ACETATE 在煤礦和石油化工行業(yè),大多存在可燃性易爆氣體、有毒氣體及窒息性氣體,使用檢測(cè)管可以快速準(zhǔn)確地檢測(cè)空氣中有毒有害氣體。檢測(cè)管廣泛用于生產(chǎn)設(shè)備動(dòng)火前和進(jìn)入密閉設(shè)備前的安全分析;用于檢查生產(chǎn)設(shè)備管道泄漏情況;用于大氣、水質(zhì)等環(huán)境監(jiān)測(cè)和工業(yè)設(shè)備廢水污染監(jiān)測(cè);用于各種地質(zhì)勘探和礦山開(kāi)采中地下溢出的氣體和污染分析;也可在汽車尾氣排放
更新時(shí)間:2025-01-08
在線留言丁基甲基酮?dú)怏w檢測(cè)管237S Methyl butyl ketone 5-80ppm
Tube No.237S
1. PERFORMANCE
1) Measuring range :10-120 ppm 5-60 ppm
Number of pump strokes 1(100ml) 2(200ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :1 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→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH3CO2CH=CH2+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
100
ml
ppm
GAS To pump
DEHUMIDIFIER
(White)
120
100
80
60
40
20
10
237S VINYL ACETATE
Substance Interference ppm Coexistence
Acetic acid The accuracy of readings is not
affected.
Ethylene 150 The top of discoloured layer becomes
unclear.
Alcohols Similar stain is produced. Higher readings are given.
Ethers 〃〃
A(mlipohrea ttihca hny Cdr3o)carbons tWo hBorloew lany. er is discoloured 〃
Aromatic hydrocarbons 〃〃
Halogenated hydrocarbons 〃〃
Esters 〃〃
Ketones 〃〃
(NOTE)
In case of 2 pump strokes, following formula is available for the actual concentration.
Actual concentration=1/2×Reading value
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