韩国三级中文字幕hd久久精品,国厂偷拍,精品国内自产拍在线观看,冷傲总裁被肉到失禁h

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(shí),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(shí)間:2025-10-29

發(fā)郵件給我們:554328895@qq.com

分享到: 1
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.

麻豆91爱爱| 亚洲视频中文在线| JB插在线观看| 午夜剧场一级毛片| 国产熟女一区二区三区五月婷| 国产久久久久黑人| 777熟女色| 亚洲精品乱码久久久久久动图| 曰本三级免费看| 秋霜电视剧免费观看完整版| 日韩精品一区| 熟女人妻另类专区| 国产高清69| 免费av无码无在线观看| 一路向西在线观看完整版| 影音先锋激情小说| 夹住h不许漏hh| 日韩精品欧美一区二区三区| 太紧了夹得我好爽好紧好多水| 单身男女1免费完整版在线观看| 富婆对白放荡xxx在线视频| 国产精品野外a∨久久久| 欧美性猛交xxxx黑人猛交| 亚洲中文久久精品无码9| 日日日日日夜夜夜夜夜 | 亚洲自拍三级片| 欧美性猛交xxxx乱大交免费看| 亚洲精品无码mv在线观看| bbw日泬在线| 欧美大尺度视频一区二区| 中文字幕亚洲另类| 国产美女无套 在线播放| 精品国产一区二区三区久久久四川| 91污污污视频在线观看| 国产精品99久久久久女子| 91pony九色| 国产在线|日韩| 十八岁免费观看高清韩剧推荐| 韩国美女性猛交少妇| 国模吧国模吧一二区| 无碍av一本大道日韩精品|