精品国产天线2019,色综合久久无码五十路人妻,亚洲熟悉妇女XXX妇女AV,亚洲H在线播放在线观看H

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:2025-03-11

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.

av中文字幕无码免费看| 亚洲第一第二第三第四第五| 草草久久久亚洲av成人片| 97人妻丰满熟妇av无码| 岛国激情一区二区三区| 精品国产一区二区三区av 性色| 精品人妻无码一区二区三区手机版| 国模少妇一区二区三区咪咕| 免费网禁拗女资源网视频| 免费a级毛片出奶水| 精品一区二区三区四区在线观看| 最近高清无吗免费看| 国产色婷婷精品人妻蜜桃成熟时 | 99精品欧美一区二区三区黑人| 99在线精品免费视频九九视| 热re99久久精品国产99热| 中文字幕熟妇人妻在线视频| 性XXXFREEXXXX国产| 成人国产一区二区三区精品| 国产肉体XXXX裸体784大胆 | 欧美狠狠入鲁的视频777色| 色欲A∨无码蜜臀AV免费播| 国产福利视频| 做床爱30分钟免费观看| WWW.一本色道88久久爱| 精品少妇ay一区二区三区| 国产亚洲av片在线观看18女人| 欧洲人妻丰满AV无码久久不卡| 国偷自产AV一区二区三区动漫| 亚洲国产精品久久久久秋霞小| 无码国产69精品久久久孕妇| 女人18毛片a级毛片免费视频| 国产亚洲AV综合人人澡精品| 国产人与ZOXXXX另类| 色国产精品一区在线观看| 丰满人妻AV无码一区二区三区| 国产av一区二区三区最新精品| 久久精品国产亚洲一区二区| 私密浏览器看片免费下载视频| 亚洲熟妇AV日韩熟妇在线| 欧美激情性视频高清在线观看|