国产精品久久久久久无码专区,日本免费无码一区二区到五区,gogogo日本免费观看视频,亚洲av综合色区无码一区爱av

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礦物油精(一種溶劑油) 石油溶劑油,石油醚,礦精,礦油精,松香水 mineral spirit

礦物油精(一種溶劑油) 石油溶劑油,石油醚,礦精,礦油精,松香水 mineral spirit

簡(jiǎn)要描述:

總烴氣體檢測(cè)管187S GENERAL HYDROCARBONS,礦物油精(一種溶劑油) 石油溶劑油,石油醚,礦精,礦油精,松香水 mineral spirit氣體檢測(cè)管,礦物油,2.5-40mg/l檢測(cè)。www.yd666.com

更新時(shí)間:2024-12-11

在線留言
礦物油精(一種溶劑油)  石油溶劑油,石油醚,礦精,礦油精,松香水 mineral spirit

礦物油精(一種溶劑油)  石油溶劑油,石油醚,礦精,礦油精,松香水187S mineral spirit氣體檢測(cè)管,礦物油,檢測(cè)范圍2.5-40mg/l

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

久久精品国产亚洲av天美18| 成人av无码一区二区三区| 亚洲欧洲精品a片久久99| 少妇与大狼拘作爱性a片| 亚洲欧美国产日韩AV野草社区| 啊用点力对就是那里视频| 妈妈的朋友中文字幕| 极品少妇被猛得白浆直流草莓视频| 免费真人视频网站直播下载| youjizz丰满熟妇中国| 凹凸在线无码免费视频| 国自产拍偷拍精品啪啪模特| 公喝错春药让我高潮| 女公浴室xxx偷窃www| 疼~别放了~装不下了不下载| 亚洲久热无码av中文字幕| 色 综合 欧美 亚洲 国产| 免费看成人做xxoo视频| 浪荡货老子大吗爽死你h漫画男男| 艳妇乳肉豪妇荡乳av| 久久免费人成网站福利院| 女人被老外躁得好爽免费视频| 国产成人无码aa精品一区| 色之久久综合av人妻熟女黑寡妇| 69堂国产成人精品视频| 99久久精品无码一区二区毛片| 在线视频国产欧美另类| 青青精品视频国产| 国精品人妻无码一区二区三区性色| 亚洲香蕉中文日韩v日本国产| 色一情一区二| 韩国电影妈妈的朋友| 色88久久久久高潮综合影院| 黄到下面流水的爽文很污的情话| 让少妇高潮无乱码高清在线观看| 皇上好涨奴婢夹不文h| 久久精品欧美人ooxx| 国产免费观看黄a片又黄又硬小说| 国产精品99久久久久久擦边| 成人区精品一区二区婷婷| 国产精品视频一区二区|