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Significance and Use
5.1 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 .
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1193 Specification for Reagent Water
E50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials
E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
E276 Test Method for Particle Size or Screen Analysis at No. 4 (4.75-mm) Sieve and Finer for Metal-Bearing Ores and Related Materials
E882 Guide for Accountability and Quality Control in the Chemical Analysis Laboratory
ICS Number Code 73.060.40 (Aluminium ores); 73.080 (Non-metalliferrous minerals)
UNSPSC Code 11101524(Fluorspar); 41115403(Spectrometers)
ASTM E463-14a, Standard Test Method for Determination of Silica in Fluorspar by Silico-Molybdate Visible Spectrophotometry, ASTM International, West Conshohocken, PA, 2014, www.astm.orgBack to Top