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1,4-二氧六環(huán) 119U 1,4-DIOXANE (+) 1,4-二堊烷檢測管,20-500ppm 1,4-二氧六環(huán)氣體檢測管119U 1,4-DIOXANE 20-500ppm,管道中氣流的流向及流速的檢測方法:發(fā)煙管作為氣體檢測的輔助工具,是用來(lái)測定管道中氣流的流向及流速的,管子里填充了容易發(fā)煙的物質(zhì)氯化錫。發(fā)煙管可重復使用,每次待測完畢后,用所附的橡膠帽蓋上即可。
更新時(shí)間:2024-07-14
在線(xiàn)留言1,4-二氧六環(huán)氣體檢測管119U 1,4-DIOXANE 20-500ppm
Tube No.
1. PERFORMANCE
1) Measuring range :20-500 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :5 ppm
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Graduations printed on the tube are calibrated by Methyl alcohol at 1 pump stroke
and 1,4-Dioxane concentration is determined by using a conversion chart.
8) Colour change :Orange→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low:15% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
Pottassium dichromate is reduced.
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
1000
800
600
400
200
100
50
20
ppm
119U C 1, 4-DIOXANE
O O+Cr6++H2SO4→CH2CH2 Cr3+
CH2CH2
TEMPERATURE CORRECTION TABLE
Scale True Concentration (%)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(%) (32°F) (50°F) (68°F) (86°F) (104°F)
500 700 600 500 470 440
400 480 440 400 370 350
300 370 330 300 280 260
200 250 220 200 190 170
100 130 110 100 90 85
50 65 60 50 45 40
20 25 23 20 18 15
上一篇:196SN,N-二甲基甲酰胺(CH3)2NCHO 196S N,N-DIMETHYL FORMAMIDE
下一篇:139SB1,4-二氧己環(huán)氣體檢測管139SB 1,4-DIOXANE (+)C4H8O2 0.05-2.5%
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