用硅钼酸盐可见光分光法测定萤石中二氧化硅含量的标准试验方法

详细信息   

• 标准号：ASTM E463-2009
• 发布日期：2009
• 英文题名：Standard Test Method for Determination of Silica in Fluorspar by Silico-Molybdate Visible Spectrometry
• 英文主题词：fluorspar ; photometric ; silica ; silico-molybdate magnesium ; Fluorspar ; Photometry ; Silica content ; Silico-molybdate method
• 标准状态：现行
• 发布单位：US-ASTM
• 国际标准分类号：73.080
• 载体形态：3P.;A4
• 中国标准分类号：D50
• 国别：美国材料与试验协会

文摘

This test method is intended as a referee method for compliance with compositional specifications for impurity content. It is assumed that all who use this procedure will be trained analysts capable of performing common laboratory practices 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. Follow appropriate quality control practices such as those described in Guide E 882.

1.1 This test method covers the determination of silica in fluorspar in concentrations from 0.5 % to 10 %.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 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 of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.