Download or read book GB 6901 3 2004 Translated English of Chinese Standard GB6901 3 2004 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2014-09-09 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This part specifies the hydrofluoric acid gravimetric method to determine silicon dioxide. This part applies to the determination of silicon dioxide in silica refractories. Measuring range (mass fraction) is greater than 95.00%.