ASTM E2295-03(2008)e1
Standard Practice for Fire Assay Silver Corrections in Analysis of Metal Bearing Ores, Concentrates, and Related Metallurgical Materials by Silver Determination in Slags and Cupels

Standard No.

ASTM E2295-03(2008)e1

Release Date

2003

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM E2295-13

Latest

ASTM E2295-21

Scope

These methods are primarily intended to be used for the determination of silver correction in the fire assay silver determination. Silver assays are determined by fire assay for the purpose of metallurgical exchange between seller and buyer.

It is assumed that all who use this method will be trained analysts capable of performing skillfully and safely. It is expected that work will be performed in a properly equipped laboratory under appropriate quality control practices such as those described in Guide E 882.

1.1 This practice covers the determination of silver corrections for fire assay of metal bearing ores, concentrates and related metallurgical materials using the spent slags and cupels from the fire assay process, by gravimetry and atomic absorption spectrophotometry.

1.2 The test methods appear in the following order:

	Sections
Gravimetric Method	10–11
Atomic Absorption Method	12–13

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 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. (See Practices E 50 and ISO Guide 35:1989.)

ASTM E2295-03(2008)e1 Referenced Document

• ASTM D1193 Standard Specification for Reagent Water
• ASTM E1024 Standard Guide for Chemical Analysis of Metals and Metal Bearing Ores by Flame Atomic Absorption Spectrophotometry (Withdrawn 2004)
• ASTM E1335 Standard Test Methods for Determination of Gold in Bullion by Cupellation
• ASTM E135 Standard Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
• 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 E2295-03(2008)e1 history

• 2021 ASTM E2295-21 Standard Practice for Fire Assay Silver Corrections in Analysis of Metal Bearing Ores, Concentrates, and Related Metallurgical Materials by Silver Determination in Slags and Cupels
• 2013 ASTM E2295-13 Standard Practice for Fire Assay Silver Corrections in Analysis of Metal Bearing Ores, Concentrates, and Related Metallurgical Materials by Silver Determination in Slags and Cupels
• 2003 ASTM E2295-03(2008)e1 Standard Practice for Fire Assay Silver Corrections in Analysis of Metal Bearing Ores, Concentrates, and Related Metallurgical Materials by Silver Determination in Slags and Cupels
• 2003 ASTM E2295-03 Standard Practice for Fire Assay Silver Corrections in Analysis of Metal Bearing Ores, Concentrates, and Related Metallurgical Materials by Silver Determination in Slags and Cupels