亚洲中文字幕啪啪一区二区,看亚洲欧洲在线视频,国产福利不卡在线视频,欧美日韩一区二区人妻

產(chǎn)品列表PRODUCTS LIST

首頁(yè)>產(chǎn)品中心>日本光明北川式氣體檢測(cè)管>氣體快速檢測(cè)管>187S辛烷CH3(CH2)6CH3氣體檢測(cè)管187S Octane 100-2800ppm

辛烷CH3(CH2)6CH3氣體檢測(cè)管187S Octane 100-2800ppm

簡(jiǎn)要描述:

辛烷CH3(CH2)6CH3氣體檢測(cè)管187S Octane 100-2800ppm,CAS 11-65-9,爆炸上限%(V/V): 6.5 爆炸下限%(V/V): 0.8,主要用途: 用作溶劑及色譜分析標(biāo)準(zhǔn)物質(zhì),也用于有機(jī)合成。健康危害: 對(duì)人的眼睛、呼吸道粘膜有刺激作用,有麻醉和肺部刺激作用。環(huán)境危害: 對(duì)環(huán)境有危害,對(duì)水體、土壤和大氣可造成污染,對(duì)大氣可造成嚴(yán)重污染。

更新時(shí)間:2025-01-08

發(fā)郵件給我們:554328895@qq.com

分享到: 1
在線留言
辛烷CH3(CH2)6CH3氣體檢測(cè)管187S Octane 100-2800ppm

辛烷CH3(CH2)6CH3氣體檢測(cè)管187S Octane 100-2800ppm

Tube 87S

1. PERFORMANCE
1) Measuring range :50-1,400 ppm(as n-Hexane)
Number of pump strokes 1(100ml)
2 pump strokes(200ml)are required for Kerosine and Mineral tupentine
determination.
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :5 ppm
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(refer to "Table 2. Temperature CorrectionTable")
7) Reading :Direct reading from the scale calibrated by 1 pump stroke
8) Colour change :Orange→Yellowish green
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%(Controlled on n-Hexane)
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH3(CH2)4CH3+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
1400
1200
1000
800
600
400
200
100
50
ppm
????
????
187S GENERAL HYDROCARBONS
Substance Interference Coexistence
The bottom of the discoloured
Aromatic hydrocarbons layer is changed to Black and
higher readings are given.
It has no influence on readings even if Alcohols, Esters or Ketones each co-exists up to 6%.
(NOTE)
1)Determine the concentration of objective gas by multiplication with the figure shown in Table 1 after
temperature correction.
Example)For measuring Heptane at 10℃ of temperature
Reading concentration :600 ppm
Concentration on temperature correction :660 ppm
Concentration of Heptane :990 ppm
Table.2 Temperature Correction Table (20℃standard)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
1400 1630 1530 1400 1270 1180
1200 1400 1320 1200 1090 1010
1000 1170 1100 1000 910 840
800 930 870 800 720 670
600 700 660 600 550 500
400 460 430 400 360 330
200 220 210 200 180 170
100 100 100 100 100 100
Unit:ppm
Name of Gas Figure Name of Gas Figure
Isobutane 0.8 Heptane 1.5
Pentane 0.8 Octane 2.0
n-Hexane 1.0 Cyclohexane 1.0

亚洲人妻一区二区久久| 日韩欧美精品中文字幕一区| 日本一区二区三区免费的视频| 久久久久久亚洲一区二区| 无码人妻w在线视频影院| 欧美日韩在线免费视频| 国产精品久久久久久福利69| 一区二区三区欧美激情| 亚洲中文无无码第21页| 日韩欧美亚洲中文字幕区在高我| 99久久精品视香蕉蕉| 午夜无码精品一区二区三区| 日韩精品一区二区三区四区| 欧美日韩精品免费一级| 欧美日韩精品一区二区三区激情在线| 日本免码va在线看免费| 欧美在线免费观看日本一区| 夜鲁夜鲁在线视频维| 中文字幕最新在线资源| 亚洲精品在线观看日本国产| 欧美日韩视频免费看| 欧美日韩国产综合在线视频| 麻豆理论片在线观看| 精品国产亚洲av麻豆狂野| 亚洲Av无码精品色午夜蜜芽| 欧洲日韩在线观看一区二区三区视频| 午夜亚洲在在线观看| 亚洲AV手机在线观看| 国产精品久久久久99999| 国产精品久久久久久福利69| 欧美日韩激情精品久久久久久| 国产精品午夜福利在线观看| 亚洲中文无无码第21页| 日本午夜福利在线视频| 欧美激情一区日韩国产| 国产精品一区二区30p| 日本精品一线在线观看| 97人妻爽人人爽人人| 欧美国产日韩精品77上位| 亚洲欧美另类久久久精品| 超碰人人在线免费观看|