久久爱综合久久爱久久爱,间谍过家家第二季在线观看免费,国产美女在线精品免费观看网址,欧美+日本+国产+在线观看

Welcome to Fujian Yongjing Technology Co., Ltd. the website!

Contact us

Add: 18#, Xin'An Road, Shaowu City, Fujian, China
International Trade Dept.
Tel: +86-599-6655932/6654968
Fax: +86-599-6654591
Home Trade Dept. 
Tel: +86-599-6654866/6654968
Fax: +86-599-6655755
High-purity Chemicals Dept.
Tel: +86-599-6655536/6654968
Fax: +86-599-6655755


Products

Industrial Sulphur Hexafluoride

Quality StandardGB/T 12022-2014

Molecular formulaSF                         Molecular weight146.05

Item

National Standard
GB/T 12022-2014

Company Standard

Sulfur Hexafluoride (SF6) (mass fraction)/ 10-2  ≥

99.90

99.90

Air (mass fraction)/10-6 ≤

300

30

Carbon Tetrafluoride (CF4) (mass fraction)/10-6  ≤

100

3

Hexafluoroethane(C2F6) (mass fraction)/10-6 ≤

200

6

Octafluoropropane (C3F8) (mass fraction)/10-6   ≤

50

3

Moisture (H2O) (mass fraction)/10-6 ≤

5.0

3.0

Acidity (as HF)(HF)(mass fraction)/10-6  ≤

0.2

0.1

Hydrolyzable Fluoride (as HF) (HF) (mass fraction)/10-6 ≤

1.0

0.8

Mineral Oil (mass fraction)/10-6 ≤

4.0

3.0

Bioexperiment ≤

Non-toxic in bio-test

Non-toxic in bio-test

Properties
Sulphur hexafluoride is liquid under normal temperature and pressure. It’s a colorless, odorless, non-toxic and non-corrosive gas. Its melting point is -50℃, boiling point is -63.8℃, and the density is 6.12g/L(20℃ 0.1MPS). It is an excellent electrical insulator.
Application
Sulphur hexafluoride is an excellent insert insulating gas widely used in high-voltage electric equipments and ground cables, mainly including electronic equipments, radar, particle accelerator, transformer, lightning arresters, refrigerant etc.
Storage
In cool, dry and ventilated warehouse.
Transport
With symbols indicated in GB19-73. The coefficient of the filling cylinders should not be higher than 1.33kg/L.
Packing
In seamless steel cylinder(40L, 12.5L, 10L, 8L, 4L)(Normally, the pressure is 15MPa, the filling coefficient<1.37kg/L).

【Back】

Copyright(C)2017,Fujian Yongjing Technology Co., Ltd. All Rights Reserved. Supported by ChemNet ChinaChemNet Toocle Copyright Notice

精品人妻无码一区二区色欲产成人| 欧美疯狂性受XXXXX另类| 青青草国产成人99久久| 婷婷色国产偷V国产偷V| 中文字幕无码精品三级在线电影| 精品少妇一区二区三区视频| 漂亮人妻洗澡被公强| 国产福利视频| 亚洲国产一区二区A毛片| 欧美精品一区二区| 亚洲欧美妆和亚洲妆的区别| 亚洲乱码一区二区三区在线观看| 天干天干天夜夜爽啪啪免费网站| 久久av| 国产线路3国产线路2| xx欧美肥臀| 欧美疯狂性受XXXXX喷水更猛| 成人毛片100免费观看| 无码人妻精品一区二区三区不卡| 人人添人人妻人人爽夜欢视AV| 色欲精品国产一区二区三区| 真人性做爰无遮a片免费| 国产成人一区二区三区| 国产无线乱码一区二三区| 国产在线拍小情侣国产拍拍偷| 国产精品免费一区二区三区四区| 无套中出丰满人妻无码| 国产999精品久久久久久| 亚洲和欧洲一码二码区别在| 国产人妻久久精品二区三区特黄| 无码人妻少妇久久中文字幕| 欧美大香线蕉线伊人久久| 色婷婷久久综合丁香五月狠狠野花 | aaa欧美色吧激情视频| 国产精品日产欧美久久久| 色综合久久88色综合天天| 国产亚洲av片在线观看18女人| 日韩高清无码| 色欲AV久久人妻蜜臀绯色| 人妻被中出不敢呻吟a片视频| 亚洲AV 无码片一区二区三区 |