Table of Contents

Foreword<br>Introduction<br>1 Scope<br>2 Normative references<br>3 Principle<br>4 Reagents<br>5 Apparatus<br>6 Sample<br>7 Procedure<br>8 Expression of results<br>9 Precision<br>10 Test report<br>Annex A (normative) - Procedure for the preparation and<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;determination of the mass predried test portion<br>Annex B (normative) - Trial fusion<br>Annex C (normative) - Blank determination<br>Annex D (normative) - Inquartation<br>Annex E (normative) - Determination of vaporization loss<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;of silver during the cupellation process<br>Annex F (normative) - Sulfuric acid - Parting<br>Annex G (normative) - Determination of impurities <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;in parting solutions and washings<br>Annex H (normative) - Flowsheet of the procedure <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for the acceptance of analytical values for <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;test samples<br>Annex I (informative) - Flowsheet of the method<br>Annex J (informative) - Roasting method<br>Annex K (informative) - Guide to the preparation of <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dilutions for the determination of silver <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;in parting solutions and residues<br>Annex L (informative) - Derivation of precision equations<br>Bibliography

Abstract

Defines a fire assay gravimetric and flame atomic absorption spectrometric method for the determination of the mass fraction of gold and silver in copper, lead, and zinc sulfide concentrates as follows: - Copper concentrates; - Lead concentrates; and - Zinc concentrates.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	British Standards Institution
Pages
ISBN
Committee	NFE/36
Supersedes	04/30116289 DC : DRAFT JUL 2004