ASTM E1568-13 rus PDF

Full title and description

St ASTM E1568-13 rus — ASTM E1568-13: "Standard Test Method for Determination of Gold in Activated Carbon by Fire Assay (Gravimetry)" presented as a Russian-language (rus) edition/translation for use in laboratories and metallurgical process control. The method specifies a fire-assay collection and gravimetric procedure for measuring gold retained on activated carbon after cyanide leaching.

Abstract

This standard describes a referee-level laboratory procedure to determine gold content in activated carbon by igniting and fusing a weighed carbon sample with fire-assay flux, collecting precious metals in lead, cupelling the lead to remove base metals and concentrate silver, parting silver, annealing, and gravimetrically determining gold. The method covers a working concentration range of approximately 15 μg/g to 5000 μg/g and uses SI units as the normative system. It is intended for skilled analytical personnel in properly equipped laboratories and recommends following quality-control practices such as those in Guide E882.

General information

• Status: Superseded / Historical (E1568-13 has been revised; see E1568-21 for the later active revision).
• Publication date: Current edition approved April 1, 2013; published June 2013 (designation E1568-13).
• Publisher: ASTM International (ASTM).
• ICS / categories: 77.120.99 (Other non-ferrous metals and their alloys / methods of chemical analysis).
• Edition / version: E1568-13 (DOI 10.1520/E1568-13); earlier/later versions include E1568-03 and revision E1568-21.
• Number of pages: 4 (concise test method document).

Scope

The standard covers the determination of gold in activated carbon by fire-assay collection followed by gravimetric measurement. It is applicable across the stated analytical range (about 15 μg/g to 5000 μg/g gold) and specifies SI units as the norm. The document does not attempt to address all safety concerns; users must implement appropriate laboratory safety, waste-disposal, and regulatory compliance measures. The procedure is intended primarily as a referee method for metallurgical and mineral-processing quality control and accounting.

Key topics and requirements

• Sample preparation and weighing of activated carbon test portions.
• Ignition and fusion with appropriate fire-assay fluxes in clay crucibles.
• Collection of precious metals in lead followed by separation of lead (cupellation) to concentrate silver and gold.
• Parting (removal) of silver (acid parting) and annealing to prepare the gold bead for gravimetric weighing.
• Analytical range and detection limits: approximately 15 μg/g to 5000 μg/g gold (SI units normative).
• Quality assurance recommendations and reference to Guide E882 for laboratory accountability and QC procedures.
• Safety, reagent purity, and interference considerations when working with lead, fluxes, and high-temperature operations.
• Reporting and calculation conventions using significant digits and gravimetric procedures.

Typical use and users

Used by metallurgical laboratories, gold recovery operations, analytical chemistry labs supporting mining and process-control teams, and organizations requiring referee or definitive measurements of gold on activated carbon. Typical users are trained analytical chemists and metallurgists performing carbon-in-pulp/carbon-in-leach process accounting, laboratory QA/QC, or dispute-resolution assays.

Related standards

Referenced and related documents typically cited within or alongside this method include Guide E882 (accountability and quality control in chemical analysis labs) and various ASTM methods for sampling, moisture, ash, and apparatus practices used in activated-carbon and metallurgical analyses (for example, D2862, D2866, E29, E50, E135). Users should consult the standard text for the full list of referenced practices and methods.

Keywords

gold analysis, activated carbon, fire assay, gravimetry, cupellation, parting, assay flux, metallurgical laboratory, ASTM E1568-13, referee method, Russian translation.

FAQ

Q: What is this standard?

A: ASTM E1568-13 is a standardized laboratory test method for determining the amount of gold adsorbed on activated carbon by fire-assay collection and gravimetric measurement; the "rus" designation indicates a Russian-language edition or translation of the standard.

Q: What does it cover?

A: It covers sample preparation, fusion with assay flux, lead collection, cupellation, silver parting, annealing, and final gravimetric weighing to determine gold content in activated carbon within the analytical range ~15 μg/g to 5000 μg/g, using SI units. It also notes required laboratory practices and safety considerations.

Q: Who typically uses it?

A: Analytical chemists, metallurgists, process-control and QA/QC laboratories in mining and gold-recovery operations, and organizations needing referee-level determinations for metallurgical accounting and dispute resolution.

Q: Is it current or superseded?

A: E1568-13 was published in 2013 and has subsequently been revised; the document record shows a later revision (E1568-21). Therefore E1568-13 should be treated as a historical/superseded edition and users requiring the latest normative text should consult the current revision (E1568-21).

Q: Is it part of a series?

A: The standard belongs to ASTM Committee E01 (Analytical Chemistry for Metals, Ores, and Related Materials) and to Book of Standards volume 03.05; related ASTM methods and practices for sampling, moisture, ash, and laboratory QA (e.g., D2862, D2866, E29, E50, E135, Guide E882) are commonly used in conjunction.

Q: What are the key keywords?

A: Gold, activated carbon, fire assay, gravimetry, cupellation, parting, metallurgical analysis, ASTM, assay method, Russian translation.