成人毛片无码一区二区三区,亚洲精品成人无码中文毛片,亚洲国产精品尤物yw在线观看,人妻互换精品一区二区

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>113SB戊烷CH3(CH2)3CH3氣體檢測管113SB PENTANE 50-1000ppm

戊烷CH3(CH2)3CH3氣體檢測管113SB PENTANE 50-1000ppm

簡要描述:

戊烷CH3(CH2)3CH3氣體檢測管113SB PENTANE 50-1000ppm,CAS 09-66-0,健康危害,高濃度可引起眼與呼吸道粘膜輕度刺激癥狀和麻醉狀態(tài),甚至意識(shí)喪失。慢性作用為眼和呼吸道的輕度刺激??梢疠p度皮炎。燃爆危險(xiǎn),本品極度易燃。主要用途,用作溶劑,制造人造冰、麻醉劑,合成戊醇、異戊烷等。有限/密閉空間氣體安全檢測箱,有限空間應(yīng)急防護(hù)箱 www.yd666.com

更新時(shí)間:2025-01-15

在線留言
戊烷CH3(CH2)3CH3氣體檢測管113SB PENTANE 50-1000ppm

戊烷CH3(CH2)3CH3氣體檢測管113SB PENTANE 50-1000ppm

Tube 13SB
1. PERFORMANCE
1) Measuring range :50-1,000 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :10 ppm
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Reading :Graduations printed on the tube are calibrated by Hexane at 1 pump stroke
and Pentane concentration is determined by using a conversion chart.
7) Colour change :Orange→Yellowish green
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:5%
3. CHEMICAL REACTION
CH3(CH2)3CH3+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
250
400
600
800
1000
1200
1400
100
50
ppm
GAS To pump
113SB C PENTANE
0
500
Benzene〔ppm〕?
FIG.1 Influence of Benzene
Pentane indicating value 〔ppm〕
50 100 0
500
Toluene〔ppm〕?
FIG.2 Influence of Toluene
Pentane indicating value 〔ppm〕
50 100 150
Pentane concentration(ppm)?
13SB Tube reading(ppm)?
(100ml)?
50
100
200
400
600
800
1000
1200
1400
50
100
200
400
600
800
1000
Substance Interference ppm Coexistence
Alcohols Similar stain is produced. 6% Higher readings are given.
Ketones 〃〃〃
Esters 〃〃〃
Aromatic hydrocarbons 〃The bottom of the discoloured layer is stain-
FIG.1,2 ed to Black and higher readings are given.
Paraffin (morefi nth Haynd Cro3)carbons 〃Higher readings are given.

少妇激情一区二区三区视频| 国产精品免费精品自在线观看| 国产在线拍揄自揄拍免费下载| 精品视频无码一区二区三区| 亚洲精华国产精华精华液网站| 又大又黄又粗又爽的免费视频 | 精品欧洲av无码一区二区| 肉乳床欢无码A片动漫AV| 性色av无码| 国内精品久久久久久久影视麻豆| 99久久国产露脸国语对白| 免费看片的播放器| 亚洲熟女www一区二区三区| 欧美zc0o人与善交另类a片| 在线看片v免费观看视频| 久久国产精品成人片免费 | 国产精品高潮呻吟久久av| 久久av色欲av久久蜜桃麻豆| 无码国精品一区二区免费| 99久久人妻精品免费二区| 边亲边脱边捏胸视频| 欧美乱妇无码毛片斯巴达三百勇士| 黑人玩弄人妻中文在线| 丰满少妇被猛烈进入| 国产成人av在线影院| 久久精品国产99久久丝袜| 少妇下蹲露大唇无遮挡| 无码人妻精品一区二区蜜桃| 无遮挡边摸边吃奶边做视频免费| 欧美精品精品一区在线发布| 性按摩XXXX在线观看| 亚洲AⅤ无码专区在线观看Q| 久久人妻熟女一区二区| 乱人伦人妻精品一区二区| 日本乱妇乱熟乱妇乱色a片| 亚洲精品无码永久在线观看男男| 日日摸天天碰中文字幕你懂的| 亚洲一区二区三区偷拍女厕| 欧美精品V国产精品V日韩精品 | 艳乳欲仙欲死在线观看| 国产在线拍揄自揄视精品|