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.

99久久久无码国产精品免费砚床| 亚洲AV永久无码精品古装片| 妻子6免费完整版电影| 色欲综合视频天天天| WWW亚洲精品少妇裸乳一区二区| 99久久无码一区人妻a片| 黑人粗进入欧美| 国内精品久久久久影院一蜜桃| 久久久久99精品成人片| 天堂网在线最新版www中文网| 免费观看a级毛片| 久久久受www免费人成| 日韩加勒比一本无码精品| 亚洲av成人无码久久精品| 亚洲熟妇丰满XXXXX| 在线观看免费视频| 国产精品美女久久久| 国产亚洲精品资源在线26U| 中文字幕无码毛片免费看| 免费无码一区二区三区蜜桃大| 成人精品视频99在线观看免费| 久久久无码人妻精品无码| 国产极品粉嫩福利姬萌白酱| 欧美人与物videos另类| 久久性爱视频| 国产看黄网站又黄又爽又色| 狠狠综合久久av一区二区| 国产伦精品一区二区三区| 亚洲日韩国产成网在线观看| 国产无遮挡又黄又爽免费视频| 人妻[21p]大胆| 欧美性生交xxxxx久久久| 精品少妇人妻AV免费久久洗澡| 人妻丰满熟妇岳av无码区hd| 成人无码欧美大尺度视频| 久久婷婷五月综合国产尤物app| 成人综合伊人五月婷久久| 久久久久久伊人高潮影院| 亚洲精品国产suv一区88| 精品久久久久久久无码| 欧美人与性动交α欧美精品|