国产精品久久久久久久久久久免费看|国精产品一区二区三区四区糖心|国产成人色视频一区二区三区|国产成人精品无码一区二区老年人

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:2025-04-15

在線(xiàn)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

好紧好爽好深再快点av在线| av毛片免费在线播放| 成人一区二区三区精品| 116少妇做爰毛片| 天堂8在线天堂资源bt| 国模冰莲自慰肥美胞极品人体图| 久久久久久久综合狠狠综合| 亚洲国产美国国产综合一区二区| 国产精品毛片一区二区三区| 四虎www成人影院| 成码无人av片在线电影网站| 野外做受又硬又粗又大视幕| 亚洲а∨天堂久久精品| 国产大神精品在线播放| 亚洲国产精品va在线播放| 亚洲日韩av无码一区二区三区人 | 性一交一乱一伦| 国内最真实的xxxx人伦| 性生交大全免费看| av蓝导航精品导航| 亚洲av片一区二区三区| 亚洲午夜无码av毛片久久| 丝袜人妻一区二区三区网站| 亚洲人成人无码网www国产| 免费网站看sm调教视频| 性一交一乱一伧国产女士spa| 国产免费无码一区二区| 久久婷婷五月综合尤物色国产| 精品无码人妻一区二区免费蜜桃| 久久久www成人免费无遮挡大片| 国产一起色一起爱| 日韩A人毛片精品无人区乱码| 亚洲欧美日韩国产手机在线| 国产精品护士在线播放| 国产高清精品房事自拍| 高清同性男毛片| 欧美牲交a欧美牲交aⅴ久久 | 欧美国产激情18| 熟女丝袜潮喷内裤视频网站| 国产专区免费av无码| 一本本月无码-|