99久久国产精品人妻无码,国产免费av片在线观看,国产精品污www一区二区三区,真人性做爰无遮a片免费

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),甚至意識喪失。慢性作用為眼和呼吸道的輕度刺激。可引起輕度皮炎。燃爆危險,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

更新時間:2024-12-03

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.

图书馆h含着粉嫩小奶头h漫画| 成人片黄网站a毛片免费| 暴虐营妓np宫交| 朋友人妻翘臀迎接粗大撞击| 无码国产色欲xxxx视频| 公和我边做饭边做好爽| 日韩中文字幕区一区有砖一区| 99久久精品费精品蜜臀av| 一区二区三区中文字幕| 亚洲中文字幕无码久久2021| 人妻少妇被粗大爽9797pw| 高清欧美videossexo| 免费看撕开奶罩揉吮奶头视频| 欧美人与劲物xxxxz0oz| 精品一区二区三区| 圣女当众被迫高潮h高| 黄色电影免费看| 边做边爱mp3在线播放免费观看| 国产jizzjizz全部免费看| 一区二区三区视频| 巜饥渴的少妇在线观看| 爆乳2把你榨干哦ova在线观看| 久久高清内射无套| 一本大道av伊人久久综合| 女女百合av大片在线观看免费| 国产特级毛片a片www| 日本精品无码特级毛片| 国产裸体美女永久免费无遮挡| 国产免费一区二区在线a片视频| 日本极品人妻videossex| 麻豆av福利av久久av| 亚洲av无码一区二区三区人| 国产精品毛片一区二区三区| 国产精品成人一区二区三区无码| 亚洲av乱码一区二区三区| 久久精品国产一区二区三区| 国产sm鞭打折磨调教视频| 国产成人亚洲精品无码A大片| 老婆出轨时接听老公电话| 小妖精的奶头又喷奶水了视频| 99久久99久久精品国产片果冻|