ASTM E1898-21
Standard Test Method for Determination of Silver in Copper Concentrates by Flame Atomic Absorption Spectrometry

Standard No.

ASTM E1898-21

Release Date

2021

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM E1898-21

Scope

1.1 This test method covers the determination of silver in the range of 13 µg/g to 500 µg/g by acid dissolution of the silver and measurement by atomic absorption spectrometry. Copper concentrates are internationally traded within the following content ranges: Element Unit Content Range Aluminum % 0.05 to 2.50 Antimony % 0.0001 to 4.50 Arsenic % 0.01 to 0.50 Barium % 0.003 to 0.10 Bismuth % 0.001 to 0.16 Cadmium % 0.0005 to 0.04 Calcium % 0.05 to 4.00 Carbon % 0.10 to 0.90 Chlorine % 0.001 to 0.006 Chromium % 0.0001 to 0.10 Cobalt % 0.0005 to 0.20 Copper % 10.0 to 44.0 Fluorine % 0.001 to 0.10 Gold µg/g 1.40 to 100.0 Iron % 12.0 to 30.0 Lead % 0.01 to 1.40 Magnesium % 0.02 to 2.00 Manganese % 0.009 to 0.10 Mercury µg/g 0.05 to 50.0 Molybdenum % 0.002 to 0.25 Nickel % 0.0001 to 0.08 Silicon % 0.40 to 20.0 Silver µg/g 18.0 to 8000 Sulfur % 10.0 to 36.0 Tin % 0.004 to 0.012 Zinc % 0.005 to 4.30 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM E1898-21 Referenced Document

• ASTM D1193 Standard Specification for Reagent Water
• ASTM E135 Standard Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
• ASTM E1601 Standard Practice for Conducting an Interlaboratory Study to Evaluate the Performance of an Analytical Method
• ASTM E1763 Standard Guide for Interpretation and Use of Results from Interlaboratory Testing of Chemical Analysis Methods
• ASTM E29 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
• ASTM E50 Standard Practice for Apparatus, Reagents, and safety Precautions for Chemical Analysis of Metals
• ASTM E882 Standard Guide for Accountability and Quality Control in the Chemical Analysis Laboratory

ASTM E1898-21 history

• 2021 ASTM E1898-21 Standard Test Method for Determination of Silver in Copper Concentrates by Flame Atomic Absorption Spectrometry
• 2013 ASTM E1898-13 Standard Test Method for Determination of Silver in Copper Concentrates by Flame Atomic Absorption Spectrometry
• 2007 ASTM E1898-07 Standard Test Method for Determination of Silver in Copper Concentrates by Flame Atomic Absorption Spectrometry
• 2002 ASTM E1898-02 Standard Test Method for Determination of Silver in Copper Concentrates by Flame Atomic Absorption Spectrometry
• 1997 ASTM E1898-97 Standard Test Method for Determination of Silver in Copper Concentrates by Flame Atomic Absorption Spectrometry