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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>> 139SB1,4-二氧己環(huán)氣體檢測(cè)管139SB 1,4-DIOXANE (+)C4H8O2 0.05-2.5%
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產(chǎn)品型號(hào)139SB
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廠商性質(zhì)代理商
所 在 地上海市
更新時(shí)間:2024-11-20 10:53:59瀏覽次數(shù):1473次
聯(lián)系我時(shí),請(qǐng)告知來(lái)自 化工儀器網(wǎng)苯氣體檢測(cè)管118SB BENZENE 5-300ppm
室內(nèi)空氣甲醛檢測(cè)管No.713 FORMALDEHYDE 0.01-0
氯乙烯CH2=CHCl氣體測(cè)毒管132SC VINYL CHLORID
氯乙烯CH2=CHCl氣體檢知管132SB VINYL CHLORID
1,4-二氧己環(huán)氣體檢測(cè)管139SB 1,4-DIOXANE (+)C4H8O2 0.05-2.5%
Tube No.
1. PERFORMANCE
1) Measuring range :0.05-2.5%
Number of pump strokes 2(200ml)
2) Sampling time :3 minutes/2 pump strokes
3) Detectable limit :10 ppm
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Reading :Graduations printed on the tube are calibrated by Methyl ethyl ketone at 2 pump
strokes and 1,4-Dioxane concentration is determined by using a conversion chart.
7) Colour change :Orange→Brownish green
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Potassium dichromate is reduced.
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
1.2
1.4
1.0
0.8
0.6
0.4
0.2
0.1
0.05
0.01
%
139SB C 1, 4-DIOXANE
O O+Cr6++H2SO4→CH2CH2 Cr3+
CH2CH2
Substance Interference ppm Coexistence
Acetylene 3% Whole reagent is discoloured to
Brown.
Propane 0.2% 〃
Other organic or vapours
except Halogenated hydro- Similar stain is produced. Higher reading are given.
carbons
Dioxane(%)?
39SB Tube reading(%)?
(200mR)?
0.01
0.05
0.1
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0.05
0.1
0.2
0.5
1.0
1.5
2.0
2.5
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