• 标准号：ASTM E247-2001(2005)
• 发布日期：2001
• 英文题名：Standard Test Method for Determination of Silica in Manganese Ores, Iron Ores, and Related Materials by Gravimetry
• 英文主题词：agglomerates ; analytical procedures ; concentrates ; gravimetric silica ; iron ore ; manganese ore ; silica
• 标准状态：现行
• 发布单位：US-ASTM
• 国际标准分类号：73.060.20 (Manganese ores)
• 载体形态：3P.;A4
• 中国标准分类号：D31
• 国别：美国材料与试验协会

This test method is intended to be used for compliance with compositional specifications for silica content. It is assumed that all who use these procedures will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory and that proper waste disposal procedures will be followed. Appropriate quality control practices must be followed such as those described in Guide E 882.

1.1 This test method covers the determination of silica in iron ores, iron ore concentrates and agglomerates, and manganese ore in the concentration range from 0.5 to 15 %.

1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user oi this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.