ASTA Analytical Method 25.1: Determination of Bulk Index/Bulk Density of Spices (Machine Method). This method describes how to determine the bulk index and bulk density of spices by mechanical tapping. (Do not confuse this measurement with the analysis of weight percent of light berries by ASTA Method 14.2). It includes apparatus, reagents, preparation of sample, procedure, calculation, statistics, notes, references, and revision history.