www.cgongxi.com-国产日产久久高清欧美一区WW,国产在线观看无码免费视频,国产日产久久高清欧美一区WW,国模欢欢炮交啪啪150P

產(chǎn)品列表PRODUCTS LIST

首頁(yè)>產(chǎn)品中心>日本光明北川式氣體檢測管>氣體快速檢測管>179S乙苯C6H5C2H5氣體檢測管179S Ethyl benzene 10-500ppm

乙苯C6H5C2H5氣體檢測管179S Ethyl benzene 10-500ppm

簡(jiǎn)要描述:

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(lèi)型:*種只有一個(gè)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(zhì)對測定的影響,或使被測物質(zhì)與轉化層試劑反應,產(chǎn)生新物質(zhì)后再在指示層中予以測定。凈化層或轉化層通稱(chēng)為檢測管“前層"。

更新時(shí)間:2024-07-14

在線(xiàn)留言
乙苯C6H5C2H5氣體檢測管179S Ethyl benzene 10-500ppm

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
????????

?? ??
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% 〃

苏尼特右旗| 凤冈县| 醴陵市| 武功县| 郓城县| 茶陵县| 栖霞市| 巴楚县| 夏津县| 绿春县| 资讯| 武清区| 施秉县| 章丘市| 南溪县| 山丹县| 昌吉市| 陇西县| 绥中县| 绥滨县| 阜平县| 巴林右旗| 日土县| 博爱县| 阜康市| 济阳县| 榕江县| 滦南县| 绍兴县| 韶山市| 迭部县| 汾西县| 金寨县| 衡山县| 双牌县| 南召县| 隆林| 远安县| 山东| 永丰县| 洛浦县|