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.

国产A国产片国产| 亚洲国产精品尤物YW在线观看| 国产精品久久久久久久| freevide0x性欧美| 色AV色婷婷66人妻久久久| 国内精品久久久久影院薰衣草| 伊人久久大香线蕉亚洲五月天| 欧美最猛黑人XXXX黑人猛交| 国产亚洲精品久久久久久久| 色噜噜综合熟女人妻一区| 成人毛片A级毛片免费观看网站| 成人a片产无码免费视频| 100款软件免费下载入口| 国产精品九九九国产盗摄 | 免费看黄的成人app| 久久久久亚洲av成人网| 国产色婷亚洲99精品av在| 国产精品久久久久久亚洲按摩蜜桃 | 99久久久无码国产精品免费| 亚洲午夜精品A片久久| 无码日韩人妻AV一区二区三区| 鸡毛飞上天电视剧全集观看免费| 妻子4免费完整版中文版| 人妻无码中文字幕| 狠狠88综合久久久久综合网| 成全视频在线观看免费看| 麻豆亚洲AV成人无码久久精品| 99re在线精品国产欧美| 无码精品人妻一区二区三区AV| 98国产精品人妻无码免费| 亚洲 欧洲 日产 经典| 国产精品久久国产精品99| 国产av无码专区亚洲a∨毛片| 亚洲色成人网站WWW永久四虎| 少女免费观看完整电视电影| 一区二区三区在线 | 欧| 国产chinasex对白videos麻豆| www国产成人免费观看视频| 国产精品videossex久久发布| 国产精品久久久久免费a∨| 久久精品国产亚洲欧美|