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當(dāng)前位置:上海境宣實(shí)業(yè)有限公司>>日本光明北川式氣體檢測(cè)管>>氣體快速檢測(cè)管>> 190U丁烯醛CH3CH=CHCHO氣體檢測(cè)管190U ETHYL CELLOSOLVE 2-40ppm

丁烯醛CH3CH=CHCHO氣體檢測(cè)管190U ETHYL CELLOSOLVE 2-40ppm

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產(chǎn)品型號(hào)190U

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廠商性質(zhì)代理商

所  在  地上海市

更新時(shí)間:2024-12-18 18:21:06瀏覽次數(shù):1188次

聯(lián)系我時(shí),請(qǐng)告知來自 化工儀器網(wǎng)
巴豆醛Crotonaldehyde丁烯醛CH3CH=CHCHO學(xué)名β-甲基丙烯醛,190U ETHYL CELLOSOLVE (+) 2-40ppm 臭氧氣體檢測(cè)管(檢測(cè)范圍:4-400ppm、0.025-3ppm)、手動(dòng)采樣器、5米延長(zhǎng)采樣管、便攜式儀器箱。總計(jì)3980元/套。水中臭氧快速檢測(cè)管(檢測(cè)范圍:1-10mg/L),只需325元即可對(duì)水中的殘留臭氧進(jìn)行快速檢測(cè)。

丁烯醛CH3CH=CHCHO氣體檢測(cè)管190U ETHYL CELLOSOLVE 2-40ppm

Tube 90U
0
30
40
50
20
10
Ethanol〔ppm〕?
FIG.1 Influence of Ethanol
Ethyl cellosolve indicating value 〔ppm〕
100 200 300 400 500
(300ml)? (100ml)?
0
300
400
500
200
100
1,1,1-Trichloroethane〔ppm〕?
FIG.2 Influence of 1,1,1-Trichloroethane
Ethyl cellosolve indicating value 〔ppm〕
100 200 300 400 500 600
(300mR)?
1. PERFORMANCE
1) Measuring range :5-500 ppm
Number of pump strokes 3(300ml)
2) Sampling time :4.5 minutes/3 pump strokes
3) Detectable limit :2 ppm
4) Shelf life :2 years
5) Operating temperature :10~35℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 3 pump strokes
8) Colour change :Yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
Chromium oxide is reduced.
C2H5OCH2CH2OH+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
500
400
500
200
150
100
50
20
5
300ml
ppm
(White)
DEHUMIDIFIER
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190U ETHYL CELLOSOLVE
Substance Interference Coexistence
Alcohols FIG.1 Similar stain is produced. Higher readings are given.
Ethers 〃〃
(Pmaroarfefi nth haynd Cro3c)arbons Whole reagent is changed to Brown. 〃
Aromatic hydrocarbons 〃〃
Esters 〃〃
Ketones 〃〃
Halogenated hydrocarbons FIG.2 〃〃
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 10℃ 15℃ 20℃ 25℃ 30℃ 35℃
(ppm) (50°F) (59°F) (68°F) (77°F) (80°F) (95°F)
500 800 620 500 410 335 265
400 620 490 400 325 260 200
300 450 365 300 245 195 145
200 290 245 200 160 125 95
150 215 185 150 120 90 70
100 145 125 100 80 60 45
50 75 65 50 40 30 25
20 30 25 20 15 12 10
5 10 7 5 4 3 2
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