YS/T 273.12-2006 Translated English of Chinese Standard (YS/T 273.12-2006, YST273.12-2006)
Author | : https://www.chinesestandard.net |
Publisher | : https://www.chinesestandard.net |
Total Pages | : 9 |
Release | : 2023-11-09 |
ISBN-10 | : |
ISBN-13 | : |
Rating | : 4/5 ( Downloads) |
Download or read book YS/T 273.12-2006 Translated English of Chinese Standard (YS/T 273.12-2006, YST273.12-2006) written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2023-11-09 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the method for determination of calcium oxide content in cryolite. This Part applies to the determination of calcium oxide in cryolite. Determination range (mass fraction): ??1.25%. 2 Method summary Use perchloric acid to de-fluorinate the test portion; heat until the smoke of perchloric acid has evaporated, then use hydro