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.

少妇的肉体AA片免费| 国产97色在线 | 亚洲| 日本在线视频www鲁啊鲁| 一本久久a久久精品vr综合| 久久99精品国产99久久| 国产伦精品一区二区三区免费迷 | 又粗又深又猛又爽的视频| 荫蒂添的好舒服视频| 无码人妻AV一二区二区三区| 精品淑女少妇AV久久免费 | 亚洲精品无码乱码成人| 偷玩朋友熟睡人妻| 阳茎伸入女人阳道视频免费| 国产日韩成人内射视频| 最新亚洲人成网站在线观看| 狠狠色成人一区二区三区| 锕锕锕锕锕锕~好深啊的视频| 日本VA欧美VA欧美VA精品| 亚洲国产精品无码久久sm| 亚洲精品一区二区三区四区五区| 88国产精品视频一区二区三区| 国产a级毛片| 最近中文字幕大全| 天天想你在线视频免费观看高清版| 99久久国产宗和精品1上映| 亚洲AV无码成人黄网站在线观看 | 国自产拍偷拍精品啪啪模特| 人妻少妇看a偷人无码精品| 亚洲色偷偷综合亚洲av78| 少妇把腿扒开让我添69式| 上司人妻互换中文字幕 | 夜夜躁狠狠躁日日躁视频| 久久久无码中文字幕久...| 国产精品露脸国语对白| 国产综合在线观看| 亚洲精品一区二区三区四区五区| 天堂√在线中文资源网| 国内精品久久久久久无码不卡| 激烈18禁高潮视频免费| 精品人妻无码区在线视频| 久久精品亚洲av中文2区金莲|