国产高清一区二区精品-日本道精品一区二区三区-精品少妇午夜福利视频-亚洲午夜av福利精品

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

在线看日本十八禁网站| 亚洲香蕉av在线一区二区三区| 午夜激情在线观看国产| 日韩精品视频在线不卡播放| 东京热一区二区电影| av天堂精品一区二区三区| 中文字幕中文字幕久久不卡| 亚洲精品美女久久久久高潮| 手机不卡高清播放一区二区| 91久久精品国产免费一区| 极品性感尤物少妇粉嫩逼| 亚洲综合实力最强的国家| 婷婷色悠悠,色悠悠激情啪啪| 麻豆片免费观看在线看| 熟妇一区二区三区av| 日本中文字幕激情在线| 国产精品福利午夜在线观看| 丁香婷婷麻豆激情综合网| 亚洲性视频日韩性视频| 日韩欧美一区二区免费| 亚洲精品成人午夜久久| 日韩av一区二区久久久| 成人亚洲精品一区二区三区| 强暴美女视频大全久久久| 国产伦精品二区三区视频| 深夜释放自己污在线看| 亚洲欧洲一区二区中文字幕| 国产av高清视频在线| 日本午夜福利久久久| 亚洲av正片一区二区三区| 人妇乱系列中文字幕人妻| 亚洲熟女精品不卡一区二区| 美女午夜精品国产福利| 日本午夜节目在线观看| 欧美国产日韩在线一区二区三区| 91日韩人妻一区二区三区| 日本道欧美一区二区aaaa| 亚洲 精品一区二区| 另类视频在线观看免费| 小草少妇视频免费看视频| 日本中文字幕免费专区|