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190U ETHYL CELLOSOLVE (+) 四氫萘C10H12 Dicyclopentadiene 2-60ppm 總代理銷(xiāo)售日本光明理化學(xué)工業(yè)株式會(huì)社北川式氣體檢測(cè)管,提供日本光明理化學(xué)工業(yè)株式會(huì)社北川式氣體檢測(cè)管介紹,日本光明理化學(xué)工業(yè)株式會(huì)社北川式氣體檢測(cè)管應(yīng)用,日本光明理化學(xué)工業(yè)株式會(huì)社北川式氣體檢測(cè)管價(jià)格,日本光明理化學(xué)工業(yè)株式會(huì)社北川式氣體檢測(cè)管說(shuō)明書(shū),日本光明理化學(xué)工業(yè)株式會(huì)社北川式氣體檢測(cè)管售后服務(wù),日本光明理化學(xué)工業(yè)株式會(huì)社北川式氣體檢測(cè)管中國(guó)總代理
更新時(shí)間:2024-12-18
在線留言四氫萘C10H12氣體檢測(cè)管190U Dicyclopentadiene 2-60ppm
Tube 90U
1. PERFORMANCE
1) Measuring range :2-60 ppm
Number of pump strokes 3(300 ml)
2) Sampling time :4.5 minutes / 3 pump strokes
3) Detectable limit :0.5 ppm
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Graduations printed on the tube are calibrated by Ethyl cellosolve at 3 pump
strokes and Furfural concentration is determined by using a conversion chart.
8) Colour change :Yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low:15% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH=CH
O +H2SO4+Cr6+→Cr3+
CH=C-CHO
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
500
400
300
200
150
100
50
20
5
ppm
(White)
DEHUMIDIFIER
190U C FURFURAL
Substance ppm Interference Coexistence
Alcohols Similar stains are produced and higher
readings are given.
Toluene 200 Whole reagent is changed to Pale orange. Unclear stains are produced.
TEMPERATURE CORRECTION TABLE
Conver. Corrected Concentration (ppm)
value 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
60 - - 60 50 45
50 - 71 50 45 40
40 - 53 40 35 35
30 63 35 30 30 30
20 25 22 20 20 20
15 17 15 15 15 15
10 10 10 10 10 10
5 5 5 5 5 5
2 2 2 2 2 2
上一篇:194S1,3-二氯丙烷氣體檢測(cè)管194S 1,3-DICHLOROPROPANE 10-500ppm
下一篇:222S二乙胺(C2H5)2NH氣體檢測(cè)管222S DIETHYL AMINE 1-20ppm
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