精品国产乱子伦一区二区三区,免费无码又色又爽的视频软件,亚洲AV无码成人精品区,99国产精品国产精品九九

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(cè)管>氣體快速檢測(cè)管>139SB醋酸異丁酯CH3CO2CH2CH(CH3)2氣體檢測(cè)管139SB ISOBUTYL ACETATE

醋酸異丁酯CH3CO2CH2CH(CH3)2氣體檢測(cè)管139SB ISOBUTYL ACETATE

簡(jiǎn)要描述:

醋酸異丁酯CH3CO2CH2CH(CH3)2氣體檢測(cè)管139SB ISOBUTYL ACETATE 0.01-1.4%,主要用作硝基漆和過氯乙烯漆的稀釋劑,也可用作溶劑,還可作為塑料印花漿的稀釋劑、制藥行業(yè)的萃取劑等。便攜式氣體檢測(cè)管醋酸異丁酯檢測(cè)管(CH3CO2CH2CH(CH3)),便攜式氣體檢測(cè)管醋酸異丁酯檢測(cè)管(CH3CO2CH2CH(CH3)),便攜式氣體檢測(cè)管醋酸異丁酯檢測(cè)管(CH3CO2CH2CH(CH3))

更新時(shí)間:2024-10-30

在線留言
醋酸異丁酯CH3CO2CH2CH(CH3)2氣體檢測(cè)管139SB ISOBUTYL ACETATE

醋酸異丁酯CH3CO2CH2CH(CH3)2氣體檢測(cè)管139SB ISOBUTYL ACETATE 0.01-1.4%

Tube 39SB
1. PERFORMANCE
1) Measuring range :0.01-1.4%
Number of pump strokes 2(200ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :10 ppm
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Reading :Graduations printed on the tube are calibrated by Methyl ethyl ketone at 2 pump
strokes and Propyl acetate concentration is determined by using a conversion chart.
7) Colour change :Orange→Brownish green
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Potassium dichromate is reduced.
CH3CO2(CH2)2CH3+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
1.4
1.2
1.0
0.8
0.6
0.2
0.1
0.05
0.01
%
GAS To pump
139SB C PROPYL ACETATE
Substance Interference ppm Coexistence
Acetylene 3% Whole reagent is changed to Brown.
Propane 0.2% 〃
Other organic gases or vapours
except Halogenated hydrocar- Similar stain is produced. Higher readings are given.
bons
Propyl acetate(%)?
39SB Tube reading(%)?
(200ml)?
0.01
0.05
0.1
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0.01
0.1
0.2
0.5
1.0
1.4

无码人妻一区二区三区免费N鬼沢| 婷婷国产成人精品视频小说| 亚洲色婷婷一区二区三区| 亚洲AV永久无码精品三区在线| 久久久精品人妻一区二区三区| 亚洲欧美精品无码大片在线观看| 免费B站在线观看人数在哪儿找| 欧美黑人添添高潮A片WWW| 四个人客厅交换作爱| 亚洲精品国产精华液| 久久麻豆亚洲AV成人无码国产| 纯黑色巨口虞美人杂交3粒种子| 人人澡人摸人人添学生AV| 亚洲A片无码一区二区蜜桃久久| 成人动漫在线| 精品久久久久久综合日本| 国产精品人妻无码久久久| 女人18片毛片60分钟| 国产精品扒开腿做爽爽爽视频| 国产精品国产三级国产AV主播| 插我舔内射18免费视频| 又大又粗又硬又爽又黄毛片| 各处沟厕大尺度偷拍女厕嘘嘘| 她扒下内裤让我爽了一夜A片| 国产VIVODESHD精品| 国产免费观看久久黄AV片| 无码中文字幕AV久久专区| 九九热这里只有精品| CHINESE中年熟妇FREE| 天天躁日日躁狠狠躁| 国产免费av片在线无码免费看| 欧美VIVO18| 顶级少妇倣爱A片XXX| 亚洲午夜久久久久久久久电影网| 老板把我抱到办公室揉我胸视频| 国产亚州精品女人久久久久久| 国产精品久久久久精品香蕉| 欧美VPSWINDOWS另类| 国产精品美女WWW爽爽爽视频| 欧美成人看片黄A免费看| 最美情侣免费观看完整版高清|