This document specifies the requirements and test methods for unground natural quartz sand used as an additive. It is part of a series of standards that address various types of additives and their properties, focusing on the quality control aspects necessary for ensuring consistency in industrial applications. The standard provides detailed guidelines for assessing the physical characteristics and performance criteria of silicon sand, including particle size distribution, chemical composition, and mechanical strength tests.
*** Please note: This description may not be accurate, please refer to the official documentation.