GB/T 3286.2-2012
GB/T 3286.2-2012 Methods for chemical analysis of limestone and dolomite—Part 2:The determination of silicon dioxide content—The silicomolybdic blue spectrophotometric method and the perchloric acid dehydration gravimetric method
Abstract
This part of GB/T 3286 specifies the determination of silica content using the silicomolybdenum blue spectrophotometry and the dehydration weight method with perchloric acid.
This part is applicable to the determination of silica content in limestone and dolomite, and also to the determination of silica content in metallurgical lime.
For the silicomolybdenum blue spectrophotometry, the measurement range (mass fraction) is 0.05% to 4.0% silica content; for the dehydration weight method with perchloric acid, the measurement range (mass fraction) is greater than 2.0% silica content.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Replaced |
| Standard Code | GB/T 3286.2-2012 |
| CCS | Metallurgical auxiliary raw material minerals |
| ICS | Non-metallic minerals |
| Implement Date | 2013-05-01 |