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產(chǎn)品型號113SB
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廠商性質(zhì)代理商
所 在 地上海市
更新時間:2025-03-10 21:48:25瀏覽次數(shù):1541次
聯(lián)系我時,請告知來自 化工儀器網(wǎng)室內(nèi)空氣甲醛檢測管No.713 FORMALDEHYDE 0.01-0
氯乙烯CH2=CHCl氣體測毒管132SC VINYL CHLORID
氯乙烯CH2=CHCl氣體檢知管132SB VINYL CHLORID
庚烷CH3(CH2)5CH3氣體檢測管113SB HEPTANE 100-2000ppm
Tube 13SB
1. PERFORMANCE
1) Measuring range :100-2000 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :15 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 Hexane at 1 pump stroke and
Heptane concentration is determined by using a conversion chart at 3 pump strokes.
8) Colour change :Orange→Yellowish green
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH3(CH2)5CH3+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
1200
1400
1000
800
600
400
200
100
50
ppm
113SB C HEPTANE
Substance Interference ppm Coexistence
Alcohols Similar stain is produced. 6%
Ketones 〃〃〃
Esters 〃〃〃
Aromatic hydrocarbons The bottom of the discoloured layer
FIG.1,2 〃iisn gssta ainree dg itvoe Bn.lack and higher read-
(Pmaroarfefi nth haynd Cro3c)arbons 〃Higher readings are given.
0
500
Benzene〔ppm〕?
FIG.1 Influence of Benzene
Toluene〔ppm〕?
FIG.2 Influence of Toluene
Heptane indicating value 〔ppm〕
50 100 0
500
Heptane indicating value 〔ppm〕
50 100 150
13SB Tube reading (ppm)?
(300ml)?
Heptane concentration(ppm)?
1200
1400
1000
800
600
400
200
100
50 100
300
500
1000
1500
2000
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
2,000 - - 2,000 1,680 1,460
1,600 - 2,000 1,600 1,380 1,200
1,200 2,000 1,160 1,200 1,040 920
800 1,200 940 800 720 660
400 520 460 400 360 320
200 260 230 200 180 160
100 100 100 100 100 100
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