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醋酸乙烯酯CH3CO2CH=CH2氣體檢測管237S VINYL ACETATE 5-120ppm，別 名 乙酸乙烯；乙烯基乙酸酯；醋酸乙烯酯，英文名稱(chēng) vinyl acetate；ethenyl ethanoate，健康危害：本品對眼睛、皮膚、粘膜和上呼吸道有刺激性。長(cháng)時(shí)間接觸有麻醉作用。產(chǎn)品別名 乙酸乙烯酯;醋酸乙烯;VAC，產(chǎn)品英文名 Vinyl acetate;Vinyl acetic ester;VA，結構式為CH3COOCH=CH2
更新時(shí)間：2024-07-14
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醋酸乙烯酯CH3CO2CH=CH2氣體檢測管237S VINYL ACETATE 5-120ppm
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
上一篇：216S正戊酸CH3（CH2）3COOH氣體檢測管216S N-VALERIC ACID 3-70ppm
下一篇：132SA氯乙烯CH2=CHCl氣體檢測管132SA VINYL CHLORIDE 0.05-1.0%
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