成人毛片无码一区二区三区,亚洲精品成人无码中文毛片,亚洲国产精品尤物yw在线观看,人妻互换精品一区二区

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.

欧美顶级少妇做爰hd| 18禁裸男晨勃露j毛免费观看 | 久久99精品久久久久麻豆| 亚洲欧洲美洲无码精品VA| 又大又粗又爽免费视频a片| 欧美巨大另类极品videosbest | 国产免费一区二区在线a片视频| 寂寞熟妇风间ゆみ中文| 成全视频高清免费观看| 男女真人抽搐一进一出免费视频 | 日韩精品久久久肉伦网站| 国产日韩成人内射视频| 亚洲熟妇丰满多毛xxxx| 熟妇人妻中文字幕无码老熟妇 | 荫蒂每天被三个男人添视频| 骚虎视频在线观看| 欧美亚洲国产suv| 国产乱人伦偷精品视频a人人澡| 狠狠做深爱婷婷久久综合一区| 亚洲国产精品日韩专区av| 97性无码区免费| 少妇粉嫩小泬喷水视频www| 费A级毛片无码免费视频120软件| 97人人模人人爽人人少妇| 国产线路3国产线路2| A级毛片高清免费视频在线播放| 少妇被躁爽到高潮无码| 亚洲日韩av无码一区二区三区人| 极品尤物一区二区三区| 久久亚洲精品无码AV网| 亚无码乱人伦一区二区| 精品久久久久久久无码| 男女扒开双腿猛进入免费看污| 人人澡人人妻人人爽人人蜜桃| 国产无遮挡裸体免费视频a片 | 女学生处破外女出血视频| 国产艳妇av在线观看果冻传媒| 色欲AV自慰一区二区三区| 国产AV无码专区亚洲AV麻豆| 无码人妻精品一区二区蜜桃网站| 国产av无码免费一区二区|