Standard No.:	YB/T 191.3-2001
English Name:	Methods for chemical analysis of chromium ores--The perchloric acid dehydration gravimetric method for the determination of silicon dioxide content
Chinese Name:	铬矿石化学分析方法 高氯酸脱水重量法测定二氧化硅含量
Chinese Classification:	D33    Chrome ore
Professional Classification:	YB    Professional Standard - Metallurgy
ICS Classification:	73.060.30 73.060.30    Chromium ores 73.060.30
Issued by:	SETC
Issued on:	2001-07-09
Implemented on:	2002-1-1
Status:	abolished
Abolished on:	2011-08-15
Language:	English
File Format:	PDF
Word Count:	5000 words
Price(USD):	184.00
Delivery:	via email in 1~3 business day

本标准规定了用高氯酸脱水重量法测定二氧化硅含量的方法提要、试剂与材料、仪器与设备、取制样、分析步骤、分析结果的计算和允许差。本标准适用于铬矿石中二氧化硅含量的测定。测定范围：1.00%(质量分数)～30.33%(质量分数)。