性生交大片免费看淑女出招,日韩精品一区二区亚洲AV,娇喘抽搐高潮喷水A片免费观看,亚洲AV永久无码精品三区在线

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>213S三乙胺(C2H5)3N氣體檢測管213S TRIETHYL AMINE 1-20ppm

三乙胺(C2H5)3N氣體檢測管213S TRIETHYL AMINE 1-20ppm

簡要描述:

三乙胺(C2H5)3N氣體檢測管213S TRIETHYL AMINE 1-20ppm,英文名稱 triethylamine(TEA);N,N-二乙基乙胺,別名 N,N-二乙基乙胺,健康危害:對呼吸道有強(qiáng)烈的刺激性,吸入后可引起肺水腫甚至死亡。口服腐蝕口腔、食道及胃。眼及皮膚接觸可引起化學(xué)性灼傷。

更新時間:2024-10-23

在線留言
三乙胺(C2H5)3N氣體檢測管213S TRIETHYL AMINE 1-20ppm

三乙胺(C2H5)3N氣體檢測管213S TRIETHYL AMINE 1-20ppm

Tube No.213S
1. PERFORMANCE
1) Measuring range :2-20 ppm 1-10 ppm
Number of pump strokes 1/2(50ml) 1(100ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :0.2 ppm
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 1 pump stroke
7) Colour change :Pale purple→Pale yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
By reacting with phosphoric acid, PH indicator is discoloured.
2(C2H5)3N+H3PO4→〔(C2H5)3NH〕2HPO4
4. CALIBRATION OF THE TUBE
VAPOUR PRESSURE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
6
4
2 1
DEHUMIDIFIER
(White)
10
8
100ml
ppm
213S TRIETHYL AMINE
(NOTE)
In case of 1 / 2 pump strokes, following formula is available for the actual concentration.
Actual concentration=2×Reading value.
Substance Interference Coexistence
Ammonia Similar stains are produced and Higher readings are given.
higher readings are given.
Other amines 〃〃

国产麻豆剧传媒精品国产AV| 闺蜜撕开的奶罩猛吸我的奶| AV无码精品一区二区三区| 男男做爰猛烈叫床视频GV| 脱了美女内裤猛烈进入GIF| 表妺好紧竟然流水了在线观看| 老熟女重囗味HDXX70| 风韵多水老熟妇口爆69式| 天天做夜夜躁狠狠躁视频| 国产农村又大又粗A片| 精品无人妻一区二区三区| 97夜夜澡人人双人人人喊| 社保15年后每月拿多少| 亚洲日韩精品欧美一区二区一| A片在线观看免费视频网站| 最近更新2019中文字幕7| 亚洲色无码国产精品网站可下载| 偷玩熟睡醉酒体育壮男GV| 狂野欧美性猛交免费视频| 亚洲AV无码国产精品午夜久久| 久久精品中文字幕一区二区三区| 国产精品岛国久久久久| 国产亚洲精品精华液| 欧美体内SHE精视频| 久久精品国产一区二区电影| 午夜无码A级毛片免费视频| 男人搡女人全部过程| 亚洲国产精品成人综合色在线| 又白又大的奶头A片免费| 久久人人爽爽爽人久久久| 无码人妻丰满熟妇区毛片| 无码亚洲成A∧人片在线播放| 久久人人妻人人做人人爽| 盘点美剧很黄的五部剧| 小13箩利洗澡无码视频网站免费| 女人私密深处精油按摩| 亚洲国产精品无码久久九九大片| 公主从小被吃催乳药H| 国产精品亚洲日韩欧美色窝窝色欲| 50岁熟妇的呻吟声对白| 欧美久久久无码精品亚洲日韩小说|