ISO INTERNATIONAL STANDARD 8858-3 First edition 2004-08-15 Hard coal Froth flotation testing - Part 3: Release evaluation Houille - Essais de flottation - Partie3:Evaluationdesémissions Reference number ISO 8858-3:2004(E) Copyright International Organization for Standardization @ ISO 2004 uced by IHS under licens se with ISO Not for Resale ISO 8858-3:2004(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation ISO2004 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, ISO's member body in the country of the requester. ISO copyright office Case postale 56.CH-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2004 - All rights reserved No reproduction or networking permitted without license from IHS Not for Resale ISO 8858-3:2004(E) Contents Page Foreword.. Introduction 1 Scope. 2 Normative references . : Terms and definitions. 4 Principle. 5 Reagents 6 Apparatus.. 7 Sampling and preparation of test sample 8 Flotationtest conditions 8.1 Test temperature ... 8.2 Impeller operating speed. 8.3 Airflowrate 8.4 Pulp level.. 9 Procedure.. 9.1 Test portion. 9.2 9.3 Flotationtest. 10 Presentation of results 11 Test report. Bibliography Dranizain or standardzallon'ghts reserved ili Copyright Intern d by IHS under license with ISO from IHS Not for Resale ISO 8858-3:2004(E) Foreword IsO (the International Organizationfor Standardization)is a worldwidefederationof national standards bodies technicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeen InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. rights. isO shall not be held responsible for identifying any or all such patent rights. preparation:Terminologyandperformance. ISO 8858 consists of the following parts, under the general title Hard coal - Froth flotation testing Part 1: Laboratory procedure 一 Part2:Sequentialevaluation Part3:Releaseevaluation al Organization for Standardizatiot ISO 2004 - All rights reserved Not for Resale ISO 8858-3:2004(E) Introduction The froth flotation of coal has widespread application for the recovery of fine coal particles and their separation from unwanted mineral matter. The response of coal to the froth flotation process is measured initially by a laboratory scale test. IsO 8858-1:1990 provides a means of evaluating the general flotation characteristicsofacoal underasetofspecifiedconditionsandwillnotnecessarilyindicatethefullpotentialof effect the beneficiation of the product. This part of isO 8858 describes methods of applying certain test conditions to reveal the relative response of coals to the flotation process. To facilitate the determination of how a particular coal will respond to froth flotation, a method of controlling the recovery of froth is used. This is done by inhibiting the process to a degree, determining the rate at which coal