BS ISO 17544-2024 PDF

Full title and description

STB BS ISO 17544-2024 — Carbonaceous materials used in the production of aluminium — Cold and tepid ramming pastes — Determination of rammability of unbaked pastes. This designation refers to the national/adopted version combining STB (national prefix) and the British adoption of ISO 17544:2024 (BS ISO 17544:2024); the underlying international document is ISO 17544:2024, which specifies a laboratory method to produce a compaction curve and assess the rammability of unbaked carbonaceous ramming pastes used to line cathodes in aluminium production.

Abstract

This standard describes a method for producing a compaction (rammability) curve for cold and tepid carbonaceous ramming pastes (unbaked pastes) used in aluminium cathode linings. The test enables selection of a ramming paste composition and compaction procedure that achieve an optimum in-place density for operational performance.

General information

• Status: Published / active (national adoption available as STB BS ISO 17544-2024; underlying ISO document published).
• Publication date: ISO publication: August 2024 (valid from 01 Aug 2024 in many catalogues); British (BS) adoption issued in August 2024 (BS ISO 17544:2024).
• Publisher: International Organization for Standardization (ISO); BS designation (BS ISO) published/distributed by BSI for the UK market; STB indicates a national adoption/translation channel (national publisher/registry varies by country).
• ICS / categories: 71.100.10 — Materials for aluminium production (refractories/carbonaceous materials).
• Edition / version: Edition 2 — ISO 17544:2024 (replaces ISO 17544:2004).
• Number of pages: ISO main text: 6 pages (international edition); national adoptions (BS, STB translations) can include additional front matter, national forewords and translations — e.g., BS ISO copies listed with larger page counts (commonly 16 pages for the BS-published version, tracked-change copies larger).

Scope

This document specifies a laboratory procedure to determine the rammability (ability to be compacted/rammed) of unbaked carbonaceous ramming pastes used for lining aluminium production cathodes. The procedure produces a compaction curve from which an optimum paste density and ramming practice can be selected. It applies to cold and tepid ramming pastes and is intended for quality control, product development and comparative evaluation of paste formulations.

Key topics and requirements

• Definition and scope of cold and tepid carbonaceous ramming pastes used in aluminium cathodes.
• Preparation of test specimens and standardised ramming/compaction procedure to generate a compaction (rammability) curve.
• Measurement and reporting of density/compaction versus applied energy or ram strokes to characterise rammability.
• Criteria to compare ramming pastes and select formulations or processing parameters to achieve optimum in-place density.
• Guidance for laboratory conditions, repeatability and presentation of results for quality control and product development.

Typical use and users

Primary users are aluminium smelter technical teams, refractory and carbon paste manufacturers, materials and process engineers, laboratory technicians performing quality control and R&D, and standards/compliance personnel assessing materials for cathode lining applications. The method supports paste formulation development, incoming-material inspection and production process optimisation.

Related standards

Related and referenced documents commonly include other ISO standards for carbonaceous materials and test methods used in aluminium production and refractories (for example, standards on petroleum coke analyses, water content, and trace element determination). Catalog listings and sellers often cross-reference ISO 14435 and other material-characterization standards used in this sector.

Keywords

rammability; ramming paste; carbonaceous materials; aluminium; cathode lining; compaction curve; cold ramming paste; tepid ramming paste; unbaked paste; refractory materials; quality control; material testing.

FAQ

Q: What is this standard?

A: ISO 17544:2024 (adopted as BS ISO 17544:2024 and available in some national registries as STB BS ISO 17544-2024) is an international test method for determining the rammability (compaction behaviour) of unbaked carbonaceous ramming pastes used in aluminium cathode linings.

Q: What does it cover?

A: It covers a laboratory procedure to produce a compaction curve that characterises how a ramming paste densifies under a standardised ramming/compaction regimen, enabling selection of paste composition and compaction parameters for optimum density.

Q: Who typically uses it?

A: Aluminium producers, refractory/carbon paste manufacturers, materials laboratories, process engineers and quality/acceptance teams who need to compare pastes or set production/installation practices.

Q: Is it current or superseded?

A: Current — ISO 17544:2024 is the 2nd edition published in 2024 and replaces ISO 17544:2004. National adoptions (BS, STB or others) were issued in August 2024.

Q: Is it part of a series?

A: It sits among ISO/TC 226 publications addressing materials for the production of primary aluminium; related standards address characterization of carbonaceous feedstocks, coke, and other refractory material test methods. It is not a multi-part numbered series itself but is linked by subject matter to other ISO standards in the 71.100.10 ICS group.

Q: What are the key keywords?

A: Rammability, compaction curve, ramming paste, carbonaceous materials, cathode lining, aluminium production, unbaked paste, cold ramming, tepid ramming.