ASTM C71-12 (2024) PDF

Full title and description

ASTM C71-12(2024) — Standard Terminology Relating to Refractories. A short, authoritative terminology listing that defines terms used in the manufacture, classification, testing, and application of refractory materials and products to promote uniform usage across industry and standards documents.

Abstract

This standard provides concise definitions and editorial guidance for terms peculiar to refractories (raw materials, manufacturing processes, finished refractory products, applications, and test procedures). It is intended as a reference to ensure consistent usage of refractory terminology in specifications, test methods, guides, and industry communications.

General information

• Status: Active (current terminology edition).
• Publication date: Current designation C71-12(2024); standard record last updated August 14, 2024. (Original C71‑12 edition approved April 1, 2012 and published May 2012.)
• Publisher: ASTM International (Committee C08 — Refractories; Subcommittee C08.92).
• ICS / categories: 01.040.81 (Glass and ceramics industries — vocabularies); 81.080 (Refractories).
• Edition / version: C71-12(2024) (version identifier C0071-12R24; revises earlier C71‑08 and prior C71‑12 editions/reapprovals).
• Number of pages: 6 pages.

Scope

This terminology covers words and phrases specifically related to refractories and their use: raw refractory materials, processes and manufacture, finished refractory shapes and castables, typical industrial applications, and terminology used in associated test procedures. It also provides an editorial note advising insertion of the phrase “in refractories” when definitions are quoted out of context to limit their intended field of application.

Key topics and requirements

• Authoritative definitions of common and specialized refractory terms (e.g., types of brick, castables, refractoriness descriptors, failure modes).
• Guidance on editorial use of definitions (limiting phrase “in refractories” when used out of context).
• Coverage of terminology across raw materials, manufacturing steps, finished products, applications and testing procedures.
• Designed to support uniform usage in ASTM C08 refractories standards, test methods and specifications.
• Compact reference format (short terminology list suitable for incorporation by reference in specifications and standards).

Typical use and users

Used as a reference by refractory manufacturers, materials engineers, test laboratories, standards writers, specification authors, procurement professionals, and academics working with refractory materials and systems. It is also used by regulatory and quality assurance personnel to ensure consistent terminology across contracts, test reports and standards.

Related standards

Issued under the jurisdiction of ASTM Committee C08 (Refractories). Commonly referenced alongside other C08 standards that classify, test or specify refractory materials and products (examples include classification and test-method standards for refractory brick, castables, hydration tests, PCE measurements and other physical/chemical test methods under C08). This terminology is intended to be used in conjunction with the many ASTM C08 test methods, classification and specification documents.

Keywords

refractories; terminology; definitions; refractory materials; refractory brick; castables; testing procedures; classification; ASTM C71; C08; nomenclature.

FAQ

Q: What is this standard?

A: ASTM C71-12(2024) is the ASTM terminology standard that defines terms used in the refractory materials and products sector to promote consistent usage across standards and industry documents.

Q: What does it cover?

A: It covers definitions for terms related to raw refractory materials, manufacturing and forming processes, finished refractory products (brick, shapes, castables), typical industrial applications, and terminology used in refractory test procedures. It also provides editorial guidance for quoting definitions out of context.

Q: Who typically uses it?

A: Refractory manufacturers, materials and process engineers, test laboratories, standards developers, QA/QC and procurement personnel, and technical authors who need consistent, authoritative definitions.

Q: Is it current or superseded?

A: The terminology is currently maintained in the C71-12(2024) designation and is active. The record for this designation shows a last update in 2024; earlier major actions include the C71‑12 approval (2012) and prior revisions. Users should confirm they are using the active designation when citing or purchasing the standard.

Q: Is it part of a series?

A: C71 is the fixed designation for the terminology document for refractories within ASTM’s C08 committee work. It is part of the broader body of C08 refractories standards (classifications, test methods, and specifications); it complements those documents by providing consistent vocabulary.

Q: What are the key keywords?

A: Refractories, terminology, refractory materials, refractory products, castables, refractory brick, testing procedures, classification, ASTM C71, committee C08.