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>139SB乙酸正丙酯CH3CO2(CH2)2CH3氣體檢測管 139SB PROPYL ACETATE

乙酸正丙酯CH3CO2(CH2)2CH3氣體檢測管 139SB PROPYL ACETATE

簡要描述:

乙酸正丙酯CH3CO2(CH2)2CH3氣體檢測管 139SB PROPYL ACETATE 0.01-1.4%,別名:醋酸正丙酸;乙酸丙酯,健康危害:對眼和上呼吸道粘膜有刺激作用。吸入高濃度時,感惡心、眼部灼熱感、胸悶、疲乏無力,并可引起麻醉。檢測管適用行業(yè) 煤礦和石油化工行業(yè)的安全防護(hù)應(yīng)急檢測;突發(fā)事件的應(yīng)急檢測;生產(chǎn)設(shè)備動火和進(jìn)入密閉設(shè)備前的安全分析;用于檢查生產(chǎn)設(shè)備管道泄漏情況;用于大氣、水質(zhì)等環(huán)境監(jiān)測和工業(yè)設(shè)備廢水污染監(jiān)測;用于各種地質(zhì)勘探和礦山開采中地下溢出的氣體和污染分析

更新時間:2025-01-16

在線留言
乙酸正丙酯CH3CO2(CH2)2CH3氣體檢測管 139SB PROPYL ACETATE

乙酸正丙酯CH3CO2(CH2)2CH3氣體檢測管 139SB PROPYL 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 :4 minutes/2 pump strokes
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 Isobutyl acetate concentration is determined by using a conversion chart.
7) Colour change :Orange→Pale brownish green
2. RELATIVE STANDARD DEVIATION
RSD-low:15% RSD-mid.:10% RSD-high:5%
3. CHEMICAL REACTION
Potassium dichromate is reduced
CH3CO2CH2CH(CH3)2+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
1.4
1.2
1.0
0.8
0.6
0.4
0.3
0.2
0.1
0.05
0.01
%
139SB C ISOBUTYL ACETATE
39SB Tube reading (%)?
Isobutyl acetate(%)?
1.0
0.8
0.6
1.4
1.2
0.4
0.2
0.1
0.05
0.01 0.01
0.1
0.2
0.5
1.0
1.4
(200mR)?
Substance Interference ppm Coexistence
Acetylene 3% Whole reagent is changed to Pale
brown.
Propane 0.2% 〃
Other organic gases or vapours Similar stain is produced.
except Halogenated hydrocar- 50 Higher readings are given.

久久久久久精品久久久| 精品亚洲欧美无人区乱码| 国产伦人人人人人人性| 国产97色在线 | 日韩| 97人妻天天摸天天爽天天| 国产精品永久免费视频| 国产av旡码专区亚洲av苍井空| 亚洲 欧美 中文 日韩aⅴ| 98国产精品人妻无码免费| 精品久久久无码中文字幕边打电话| 久久久久精品| 军人的又粗又大好爽| 在线观看亚洲AV日韩A∨| 久久久777天天躁狠狠躁av| 欧美交A欧美精品喷水| 国内精品久久久久精免费| 国产精品久久久久免费a∨| 国产精品毛片无码一区二区蜜桃 | 日本理伦片午夜理伦片| 婷婷国产成人精品视频小说| 国内精品视频一区二区三区八戒 | 亚洲成a人片77777kkkk| 日本三级在线观看免费| 精品无人妻一区二区三区| 国产99视频精品免视看9| 男女猛烈激情XX00免费视频| 日韩激情无码激情a片免费软件| 色视频www在线播放国产人成| 久久69国产精品久久69软件 | 精品国产乱码久久久久久郑州公司| 精品无码一区二区三区爱欲| 又白又大的奶头a片免费| 国模精品一区二区三区| 老司机午夜精品99久久免费| 亚洲精品无码| 无码国产伦一区二区三区视频| 久久婷婷激情综合色综合俺也去| 女公务员人妻系列| 国产人妖乱国产精品人妖| 国产无遮挡裸体免费视频在线观看| 囯产精品一区二区三区线|