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首页>产品中心>日本光明北川式气体检测管>气体快速检测管>139SB1,4-二氧己环气体检测管139SB 1,4-DIOXANE (+)C4H8O2 0.05-2.5%

1,4-二氧己环气体检测管139SB 1,4-DIOXANE (+)C4H8O2 0.05-2.5%

简要描述:

1,4-二氧己环气体检测管139SB 1,4-DIOXANE (+) C4H8O2 0.05-2.5%。管道中气流的流向及流速的检测方法:使用时弄断管子的两端,把一头插入吸耳球的入口,另一端置于待测管道处,然后轻捏吸耳球,管子的物质喷出,与空气中水分反应,发出白烟。从而判断待测管道中气体流向及流速。

更新时间:2017-08-06

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1,4-二氧己环气体检测管139SB 1,4-DIOXANE (+)C4H8O2 0.05-2.5%

1,4-二氧己环气体检测管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(%)�
No.139SB 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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