国产成人av无码永久免费一线天,热热色国产无码,久久精品国产亚洲av精东,小黄片无码在线观看视频

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:2025-08-28

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.

曰本丰满熟妇xxxx性| 亚洲欧美日韩久久精品| 爱看福利小视频在线观看| 久97视频在线免费观看| 懂色av一区二区三区四区| 久久精品国产熟女亚洲av| 亚洲三级啪啪啪啪啪啪啪| 亚洲中文字幕日韩人av| 久久久精品综合| 亚洲精品久久久久久久观小说| 茄子视频在线观看你懂的| 久久精品国产亚洲av忘忧| 两根粗大在她腿间进进出出h| 日韩经典 中文字幕 一区| 无码国产精品一二区免费| 午夜精品国产精品大乳美女| 散装肉脯(h)海棠书屋| 双性美人潮喷np窑子| 欧美夜精品一区二区三区| 亚洲一区二区三区四区色| 亚洲av日韩av永久无码下载| 国产免费网站在线看v片| 日韩欧美人妻精品一区二区| 伊人网免费在线观看视频| 国产中文精品久高清在线不| 欧洲精品人人视频免费看| 国产棈自产拍在线看中文| 又大又湿又紧又硬又粗A片软件| 国产一区二区三区 网址| 全亚洲综合视频在线观看| 丰满人妻跪趴高撅肥臀| 天天视频一二三四区入口| 校花夹震蛋上课自慰爽死| 午夜福利波多野结衣人妻| 久久国产精品99精国产| 日日骚日韩欧美高清一区| 精品剧情v欧美在线观看| 国产又粗又大成人片在线观看| 亚洲av无码国产一区二区三区 | 国产精品沙发午睡系列99 | 国产精品亚洲一区二区三|