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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>179S乙苯C6H5C2H5气体检测管179S Ethyl benzene 10-500ppm

乙苯C6H5C2H5气体检测管179S Ethyl benzene 10-500ppm

简要描述:

乙苯C6H5C2H5气体检测管179S Ethyl benzene 10-500ppm,从构造上讲检测管基本上分三种类型:*种只有一个指示层,用以测定组分单一或干扰因素小的气体样品。第二种是在指示层前加有净化层或者转化层,分别用以消除干扰物质对测定的影响,或使被测物质与转化层试剂反应,产生新物质后再在指示层中予以测定。净化层或转化层通称为检测管“前层"。

更新时间:2017-08-19

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乙苯C6H5C2H5气体检测管179S Ethyl benzene 10-500ppm

乙苯C6H5C2H5气体检测管179S Ethyl benzene 10-500ppm

Tube 79S

1. PERFORMANCE
1) Measuring range :10-500 ppm
Number of pump strokes 1(100ml)
2) Sampling time :2 minutes/1 pump stroke
3) Detectable limit :2 ppm
4) Shelf life :1.5 years
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 1 pump stroke
7) Colour change :White→Brown
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:5%
3. CHEMICAL REACTION
Iodine pentoxide is reduced.
C6H5C2H5+I2O5+H2SO4→I2
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
500
400
300
200
100
50
10
ppm
100ml
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179S ETHYL BENZENE
Substance Interference ppm Coexistence
Benzene Similar stain is produced. 10 Higher readings are given.
Toluene 〃25 〃
Xylene 〃50 〃
Methanol Tafhfeec atecdc.uracy of readings is not 1% 〃
Hexane Pale brown stain is produced. 0.1% 〃

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