无码欧美xxxxx在线观看裸,麻豆影视在线直播视频,久久夜色精品国产亚洲av动态图,色欲av午夜一区二区三区

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

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

簡要描述:

辛烷CH3(CH2)6CH3氣體檢測管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準物質(zhì),也用于有機合成。健康危害: 對人的眼睛、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: 對環(huán)境有危害,對水體、土壤和大氣可造成污染,對大氣可造成嚴重污染。

更新時間:2025-01-15

在線留言
辛烷CH3(CH2)6CH3氣體檢測管187S Octane 100-2800ppm

辛烷CH3(CH2)6CH3氣體檢測管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

精品高朝久久久久9999| 久久久久亚洲av无码专区喷水| 熟妇人妻va精品中文字幕| 丁香五月亚洲综合深深爱| 无限看片的视频高清在线| 国产强伦姧在线观看| 黑色包臀裙秘书啪啪久久网站 | 搡老熟女多毛丰满国产精品| 一二三四在线观看免费中文吗 | 无码AⅤ精品一区二区三区浪潮 | 少妇人妻互换不带套| 亚洲熟妇无码爱v在线观看| 国产特级毛片a片www| 娇妻被交换粗又大又硬无| 国产无遮挡又黄又爽免费视频| 人妻杨丽的无奈献身| 精品国产不卡一区二区三区| 四虎成人精品永久免费av| 赶尸艳谈在线观看| 国产精品v欧美精品v日韩精品| 55夜色66夜色国产精品视频| 无码国产色欲xxxx视频| 中文字幕在线看成电影乱码| 欧美精品久久久久久久自慰| 精品无码黑人又粗又大又长av| 亚洲av永久无码精品一福利 | 亚洲精品深夜av无码一区二区| 国内精品卡一卡二卡三| 日本精品一区二区三区在线视频 | 久久精品欧美人ooxx| 色婷婷狠狠18禁久久yy| 国产99久久精品一区二区| 无码a级毛片免费视频内谢| 国产50部艳色禁片无码| 99在线精品视频在线观看| 小婷又嫩又紧又滑又多水| 欧美精品一区二区少妇免费a片| 国内精品九九久久久精品| 国产jizzjizz全部免费看| 被部长玩的漂亮人妻| 最好免费高清视频在线观看|