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

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

簡(jiǎn)要描述:

三乙胺(C2H5)3N氣體檢測(cè)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(duì)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(shí)間:2024-10-31

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

三乙胺(C2H5)3N氣體檢測(cè)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 〃〃

免费看曰批女人爽的视频| 亚洲精品乱码久久久久久不卡| 内衣柜办公室L~3带樱花| 乌克兰少妇XXXX做受野外| 精品国产一区二区三区AV| 亚洲精品国产精华液| 三男三女换着曰| 女人与公狍交酡过程高清视频| 扒开老女毛荫荫的黑森林视频| 托着奶头喂男人吃奶A片奶水| 好紧好大快点舒服使劲| 年轻的老师8完有限中字木瓜| 少妇又紧又爽又丰满A片小说| 亚洲成AV人片在线观看无| 男女高潮又爽又黄又无遮挡| 三上悠亚SSNI绝顶を教え込ま| 少妇与公做了一夜伦理| 午夜福利电影| 97无码精品人妻一区二区| 欧洲洲一区二区精华液| 被老外添嫩苞添高潮NP电影| 国产精品视频人人做人人爽| 亚洲熟妇AV一区二区三区| 久久久久免费精品国产| 国产精品VIDEOSSEX久久| 中国男男自慰gay片免费观看| 中文字幕日韩欧美一区二区三区| 久久久久久人妻一区二区三区| 国产CHINESE男男GAY片| 免费观看少妇全黄A片| 嫩模被强到高潮呻吟不断| 欧美FREESEX黑人又粗又大 | 小YIN娃日记H双性窑子开张了| BL肉YIN荡NP公厕肉便| 2023国精产品一二二线| 清冷医生受H打开腿乖听话男男| 亚洲AV无码成人精品区在线观看| 国产熟女一区二区三区五月婷| 麻豆蜜桃国产精品无码视频| 国产99久久久久久免费看| 小受被多男摁住灌浓精A片小说|