国产微拍_免费国产高清精品一区在线_小红书旧版本下载_男女一边摸一边做爽爽的i视频

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