丰满岳乱妇在线观看中字无码,漂亮的保姆5在线观看中文,把我绑在床头上夹奶头视频,免费人做人爱完整版视频

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

簡要描述:

總烴氣體檢測管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氣體檢測管,礦物油,2.5-40mg/l檢測。www.yd666.com

更新時間:2025-01-15

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氣體檢測管,礦物油,檢測范圍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

亚洲人成色77777| 果冻传媒剧国产剧在线看| 成人在无码av在线观看一| 国精产品一区一区三区糖心| 国产精品亚洲av在线观看| 锕锕锕锕锕锕~好深啊的视频| 亚洲国产精品国自产拍AV | 色欲麻豆国产福利精品| 国产精品国产亚洲区艳妇糸列短篇 | 男女真人抽搐一进一出免费视频| 久久国产人妻一区二区| 亚洲精品美女久久7777777| 人妻丰满熟妇av无码区app| 亚洲av无码一区二区三区在线| jzzijzzij亚洲乱熟无码| 日韩精品无码一区二区三区不卡| 国产h视频在线观看| 国产强被迫伦姧在线观看无码| 777色婷婷AV一区二区三| 亚洲AV无码成人精品区在线观看 | 国产乱码精品一区二区三区四川人| 18禁无遮挡无码国产免费网站| 国产成人久久av免费| 呦交小U女国产精品视频| 色翁荡熄又大又硬又粗又视频| 四川少妇大战4黑人| 脱岳裙子从后面挺进去视频| 国产精品久久久久久亚洲av| 男人J进入女人P免费狂躁| 无码AⅤ精品一区二区三区浪潮 | 国产日产欧洲系列| 亚洲精品无码专区久久久| 成全视频高清免费观看| 久久久久亚洲av无码专区 | 少妇挤奶水a片无码网站| 欧美孕交alscan巨交xxx| 人人妻人人澡人人爽国产| 国产无套粉嫩白浆在线观看| 国产色综合久久无码有码| 被强行灌满精子的少妇| 无码一区二区波多野结衣播放搜索|