ASTM-E463 Standard Test Method for Determination of Silica in Fluorspar by Silico-Molybdate Visible Spectrophotometry

ASTM-E463 - 2014A EDITION - CURRENT
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Standard Test Method for Determination of Silica in Fluorspar by Silico-Molybdate Visible Spectrophotometry
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Scope

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.

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 E882.

Keywords

fluorspar; photometric; silica; silico-molybdate magnesium; ICS Number Code 73.060.40 (Aluminium ores); 73.080 (Non-metalliferrous minerals)

To find similar documents by ASTM Volume:

03.05 (Analytical Chemistry for Metals, Ores, and Related Materials: E 32 - latest)

To find similar documents by classification:

73.060.40 (Aluminium ores)

73.080 (Non-metalliferous minerals Including mica, fluorspar, etc. Industrial diamonds, see 25.100 Precious and semi-precious stones, see 39.060)

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Document Number

ASTM-E463-14a

Revision Level

2014A EDITION

Status

Current

Modification Type

Revision with Title Change

Publication Date

Nov. 15, 2014

Document Type

Test Method

Page Count

3 pages

Committee Number

E01.02