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Description of ASTM-E945 2012ASTM E945 - 12Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by EDTA Complexometric TitrimetryActive Standard ASTM E945 | Developed by Subcommittee: E01.02 Book of Standards Volume: 03.05 ASTM E945Significance and Use This test method is primarily intended to test materials for compliance with compositional specifications. It is assumed that all who use this test method will be trained analysts working in properly equipped laboratories. Appropriate quality control practices shall be followed such as those described in Guide E882 . 1. Scope 1.1 This test method covers the determination of zinc in ores, concentrates, and related materials having chemical composition within the following limits:
Note 1As used in this test method, percent or % refers to a mass fraction. 1.2 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.
ASTM Standards D1193 Specification for Reagent Water E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications 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 E173 Practice for Conducting Interlaboratory Studies of Methods for Chemical Analysis of Metals E663 Practice for Flame Atomic Absorption Analysis E882 Guide for Accountability and Quality Control in the Chemical Analysis Laboratory E1601 Practice for Conducting an Interlaboratory Study to Evaluate the Performance of an Analytical Method Keywords concentrates; EDTA titration; extraction; zinc ores; ICS Code ICS Number Code 73.060.99 (Other metalliferrous minerals) DOI: 10.1520/E0945-12 ASTM International is a member of CrossRef. ASTM E945This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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