GB/T 2679.12-2013 "Paper and board - Qualitative analysis of inorganic fillers and inorganic coatings - Chemical method" specifies the chemical method for qualitative analysis of inorganic fillers and inorganic coatings in paper and board, applicable to various types of paper and board. The method involves preparing test samples by ashing the specimen, dissolving them with reagents such as hydrochloric acid and nitric acid, and identifying inorganic components such as calcium carbonate, talc, and titanium dioxide through chemical reactions. It defines the characteristic reaction phenomena and judgment criteria for different components, standardizes reagent preparation, sample treatment, and analysis procedures, and provides technical support for the identification of filler and coating components.
| Status | Active | ||
|---|---|---|---|
| CCS | Y30 | ICS | 85.010 |
| Release Date | 2013-12-17 00:00:00 | Implementation Date | 2014-12-01 00:00:00 |