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乙苯C6H5C2H5氣體檢測管179S Ethyl benzene 10-500ppm,從構造上講檢測管基本上分三種類型:*種只有一個指示層,用以測定組分單一或干擾因素小的氣體樣品。第二種是在指示層前加有凈化層或者轉化層,分別用以消除干擾物質對測定的影響,或使被測物質與轉化層試劑反應,產生新物質后再在指示層中予以測定。凈化層或轉化層通稱為檢測管“前層"。
更新時間:2024-12-18
在線留言乙苯C6H5C2H5氣體檢測管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% 〃
上一篇:227S乙基胺C2H5NH2氣體檢測管227S Ethyl amine 1-20ppm
下一篇:157SB甲基溴C2H5Br氣體檢測管157SB METHYL BROMIDE 5-400ppm
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