產品列表PRODUCTS LIST
乙烷纖維素溶劑醋酸鹽C2H5OC2H4OCOCH3 190U ETHYL CELLOSOLVE ACETATE (+) 5-150ppm,操作簡便:用檢測管測定氣體濃度時,不需要同化學分析那樣加用多種化學試劑和使用各種玻璃儀器,一般也無需進行計算。也無需儀器分析那樣做好復雜的測前準備。工作步驟僅有采樣和結果顯示兩步,而這兩步又幾乎是同時進行的,這就為專業分析人員提供了極大方便,即使對沒有分析基礎知識的人,如現場工程技術或操作人員,只要參照使用說明或對其稍加指導就可以應用。
更新時間:2024-12-18
在線留言乙烷纖維素溶劑醋酸鹽C2H5OC2H4OCOCH3 190U 5-150ppm
1. PERFORMANCE
1) Measuring range :5-100 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 :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 1-Butanol concentration is determined by using a conversion chart.
8) Colour change :Yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH3CH2CH2CH2OH+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
50
20
100
150
200
300
400
500
5
300ml
ppm
GAS To pump
DEHUMIDIFIER
(White)
Tube No.
1-BUTANOL
Substance ppm Interference Coexistence
Alcohols FIG.1 Similar stain is produced. Higher readings are given.
Toluene 200 Whole reagent is changed to Pale blue. 〃
Hexane 1,000 The accuracy of readings is not affected. The accuracy of readings is not affected.
Trichloroethylene 1,000 〃〃
Ethyl acetate FIG.2 1,000 〃〃
0
100
50
Ethanol〔ppm〕?
FIG.1 Influence of Ethanol
1-Butanol indicating value 〔ppm〕
50 100
Coexistence
Interference
0
100
50
Ethyl acetate〔ppm〕?
FIG.2 Influence of Ethyl acetate
1-Butanol indicating value 〔ppm〕
500 1000
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
100 - - 100 85 77
80 - - 80 70 63
60 - 80 60 53 50
40 75 50 40 35 33
20 30 23 20 18 16
10 13 11 10 9 8
5 5 5 5 5 5
1-Butanol(ppm)?
90U Tube reading(ppm)
上一篇:190U丁烯醛C2H5OCH2CH2OH檢測管190U ETHYL CELLOSOLVE 5-500ppm
下一篇:130U乙硫醇C2H5SH氣體檢測管130U ETHYL MERCAPTAN 0.5-10ppm
返回列表>>相關產品