无码欧美xxxxx在线观看裸,麻豆影视在线直播视频,久久夜色精品国产亚洲av动态图,色欲av午夜一区二区三区

產(chǎn)品列表PRODUCTS LIST

首頁>產(chǎn)品中心>日本光明北川式氣體檢測管>氣體快速檢測管>209U異戊醇(CH3)2CH(CH2)2OH氣體檢測管209U ISOPENTYL ALCOHOL

異戊醇(CH3)2CH(CH2)2OH氣體檢測管209U ISOPENTYL ALCOHOL

簡要描述:

異戊醇(CH3)2CH(CH2)2OH氣體檢測管209U ISOPENTYL ALCOHOL 5-100ppm,中文名稱2:3-甲基丁醇,健康危害: 吸入、口服或經(jīng)皮膚吸收有麻醉作用。其蒸氣或霧對眼睛、皮膚、粘膜和呼吸道有刺激作用,可引起神經(jīng)系統(tǒng)功能紊亂,長時間接觸有麻醉作用。主要用途: 用作照相化學(xué)藥品、香精、分析試劑,以及用于有機(jī)合成、制藥等。

更新時間:2025-03-11

在線留言
異戊醇(CH3)2CH(CH2)2OH氣體檢測管209U ISOPENTYL ALCOHOL

異戊醇(CH3)2CH(CH2)2OH氣體檢測管209U ISOPENTYL ALCOHOL 5-100ppm

Tube No.209U
1. PERFORMANCE
1) Measuring range :5-100 ppm
Number of pump strokes 3(300ml)
2) Sampling time :4.5 minutes/3 pump strokes
3) Detectable limit :2 ppm
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 3 pump strokes
8) Colour change :Yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
(CH3)2CHCH2OH+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
100
80
60
40
20
10
5
300ml
ppm
(White)
DEHUMIDIFIER
209U ISOPENTYL ALCOHOL
Substance ppm Interference Coexistence
Alcohols FIG.1 Similar stain is produced. Higher readings are given.
Toluene FIG.2 200 Whole reagent is changed to Pale blue. 〃
Hexane 1,000 The accuracy of readings is not affected. The accuracy of readings is
not affected.
Trichloroethylene 〃〃〃
Ethyl acetate 〃〃〃
0
100
50
Ethanol〔ppm〕?
FIG.1 Influence of Ethanol
iso-Pentyl alcohol
indicating value 〔ppm〕
50 100
Coexistence
Interference
0
100
50
Toluene〔ppm〕?
FIG.2 Influence of Toluene
iso-Pentyl alcohol
indicating value 〔ppm〕
500 1000
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
100 - - 100 80 70
80 - - 80 65 55
60 - 83 60 50 45
40 90 50 40 33 30
20 32 23 20 16 15
10 14 11 10 9 8
5 5 5 5 5 5

国产露脸精品产三级国产av| 无码AⅤ免费中文字幕久久| 色欲午夜无码久久久久久| 国产白嫩护士被弄高潮| 国产在线拍揄自揄视精品| 亚洲精品无码久久久久牙蜜区 | 国产aⅤ无码专区亚洲av| 国产av无码国产av毛片| 无码精品A∨在线观看无广告| 欧美性狂猛xxxxxbbbbb| 人妻少妇av无码一区二区| japanese少妇高潮潮喷| 色拍拍在线精品视频| 久久婷婷成人综合色| 一本色道久久综合狠狠躁篇| 国产伦人人人人人人性| 欧美交A欧美精品喷水| 亚洲色欲色欲在线大片| 这里只有精品在线视频| 日本吃奶人妻理论片| 国产精品无码久久av| 东京热av人妻无码专区| 亚洲国产精品无码久久A片小说| 日韩精品在线观看| 丁香五月色情久久久久| 欧美精品在线观看| 国产精品久线在线观看| 亚洲av成人无码久久精品| 久久亚洲av成人无码国产| 人妻少妇精品久久久久久| 国产精品扒开腿做爽爽爽视频| 蜜臀av人妻国产精品| 日韩乱码人妻无码中文字幕| 色综合久久精品亚洲国产| 国产chinesehdxxxx宾馆tube| 色偷偷888欧美精品久久久| 色欲综合一区二区三区| 亚洲最大成人av在线天堂网| 久久99精品久久久久婷婷| 欧美av人人妻av人人爽苍井空| 国产乱子伦农村叉叉叉|