免费无码成人AV电影在线播放,精品露脸国产偷人在视频,国产成人免费视频,少妇高潮a片无套内谢麻豆传

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.

无码潮喷A片无码高潮| 国产在线国偷精品免费看| 免费看片a级毛片免费看| 国产JJIZZ女人多水喷水| 欲求不満の人妻松下纱荣子| 久久无码人妻一区二区三区午夜 | 中文字幕二区AV人妻少妇| 久久精品一区二区三区av| 久久成人国产精品| 白领人妻系列第26部分阅读| 进女小姪女体内的视频| 亚洲日韩精品无码专区| 亚洲色偷偷综合亚洲av伊人蜜桃| 又摸又揉又黄又爽的视频| 麻豆影视在线直播视频| 人妻少妇精品视频三区二区一区| 久久精品国产亚洲av忘忧草18| 久久午夜无码鲁丝片午夜精品| 欧洲美妇乱人伦视频网站| √天堂资源中文www| 中文字幕乱码亚洲∧v日本1| 欧美激情国产精品视频一区二区| 亚洲综合AV一区二区三区不卡 | 久久久久无码精品国产AV蜜桃| 午夜精品一区二区三区在线观看| 四川少妇bbw搡bbbb槡bbbb| 日本护士野外奶水hd| 国产AⅤ激情无码久久久无码| 国产精品人妻无码77777| 亚洲精品日本久久一区二区三区 | 真人高清实拍女处被破的视频| 欧美一区二区三区久久综| 中文字幕av一区二区三区 | 国产人妻丰满熟妇嗷嗷叫| 亚洲熟妇AV日韩熟妇在线| 无码中文字幕日韩专区视频| 精品国精品国产自在久国产| 色综合久久网| 亚洲成av人片一区二区密柚| 精品国产乱码久久久久久浪潮| 精品亚洲欧美无人区乱码|