ISO 10238-1999 PDF

Full title and description

Carbonaceous materials used in the production of aluminium — Pitch for electrodes — Determination of sulfur content by an instrumental method. This International Standard specifies an instrumental laboratory method for measuring the sulfur content of pitches used in the manufacture of aluminium electrodes.

Abstract

This International Standard describes an instrumental method for determining the sulfur content of electrode pitch. It is applicable to pitches of both coal-tar and petroleum origin and is intended for samples that contain between 0.1 % and 4.0 % by mass sulfur.

General information

• Status: Published (International Standard; confirmed in periodic review and remains current).
• Publication date: 16 December 1999 (Edition 1, 1999-12).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 71.100.10 — Materials for aluminium production.
• Edition / version: Edition 1 (1999).
• Number of pages: 6 pages.

Scope

Specifies an instrumental analytical method for determining total sulfur in pitch intended for electrodes used in aluminium production. The procedure covers pitches of coal-tar and petroleum origins and applies to samples with sulfur contents approximately in the range 0.1 % to 4.0 % by mass. The method is intended for laboratory use to support quality control and material specification for electrode manufacture.

Key topics and requirements

• Instrumental determination of total sulfur in electrode pitch (laboratory analytical technique).
• Applicability to both coal-tar and petroleum-derived pitches (specified sulfur range 0.1 %–4.0 % by mass).
• Sampling and sample preparation provisions appropriate for carbonaceous pitch materials (to ensure representative and reproducible results).
• Performance characteristics (precision/accuracy) and suitability statements for use in quality control of electrode-grade pitch.
• Conformance context within ISO/TC 226 work on carbonaceous materials for aluminium production.

Typical use and users

Laboratories performing chemical quality control and materials testing for the aluminium industry, producers of electrode pitch, electrode manufacturers, R&D departments working on electrode materials, and standards bodies or certification bodies checking compliance with material specifications. Typical uses include incoming material inspection, product specification verification, and process control during electrode production.

Related standards

Standards addressing other properties and test methods for carbonaceous materials used in aluminium production are related; examples include ISO standards for pitch water content, softening point, C/H ratios, and methods for trace elements in petroleum coke. National/adopted variants (for example certain GOST or national catalog entries) may exist that implement ISO 10238 or reference it.

Keywords

electrode pitch, carbonaceous materials, aluminium production, sulfur determination, sulfur content, instrumental analysis, quality control, ISO/TC 226.

FAQ

Q: What is this standard?

A: ISO 10238:1999 is an ISO International Standard that specifies an instrumental laboratory method for measuring total sulfur in electrode pitch used in aluminium production.

Q: What does it cover?

A: It covers the instrumental determination of sulfur in pitches for electrodes (coal-tar and petroleum origins) in the approximate sulfur range 0.1 % to 4.0 % by mass, including requirements for sample handling and method performance relevant to laboratory quality control.

Q: Who typically uses it?

A: Analytical laboratories, pitch manufacturers, electrode producers, R&D teams in the aluminium industry, and conformity assessment organizations.

Q: Is it current or superseded?

A: As published in December 1999 (Edition 1), ISO 10238:1999 was reviewed and has been confirmed in systematic reviews; the ISO record indicates the edition was last confirmed in 2024 and the publication remains current (not superseded) as of that confirmation. Users should check with the official national body or ISO for any later revisions or replacements if precise current status is required.

Q: Is it part of a series?

A: It belongs to the body of ISO work on carbonaceous materials for aluminium manufacture maintained under ISO/TC 226. There are other related ISO methods and parts that cover water content, softening point, C/H ratio and trace-element determinations for related materials.

Q: What are the key keywords?

A: Electrode pitch; sulfur determination; carbonaceous materials; aluminium production; instrumental analysis; quality control.