ISO 2477-2005 PDF

Full title and description

ISO 2477:2005 — Shaped insulating refractory products — Determination of permanent change in dimensions on heating. This International Standard specifies a laboratory method to measure the permanent dimensional change (shrinkage or expansion) that occurs when shaped insulating refractory products are subjected to a defined heating cycle and subsequent cooling.

Abstract

ISO 2477:2005 describes the preparation of test specimens, the positioning and measurement points, the furnace heating procedure and dwell conditions, and the calculation and reporting of the permanent change in dimensions on heating for shaped insulating refractory products. The procedure is intended for routine quality control and material characterization where dimensional stability under heat is critical.

General information

• Status: Published (International Standard, confirmed).
• Publication date: June 2005 (Edition 3, published June 2005).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 81.080 (Refractory products).
• Edition / version: Edition 3 (2005).
• Number of pages: 6 pages.

Scope

This standard applies to shaped insulating refractory products and specifies a test method to determine the permanent change in linear dimensions after a defined heating and cooling cycle. It is limited to the measurement of dimensional change (permanent shrinkage or expansion) under the specified test conditions and does not cover other properties such as mechanical strength, thermal conductivity or chemical resistance.

Key topics and requirements

• Definition of test specimen geometry and selection criteria.
• Measurement positions and reference lines for dimensional determinations.
• Furnace heating rate, maximum temperature (as specified for the product or test series), soak/dwell time and controlled cooling procedure.
• Calculation of permanent change in dimensions (percentage or absolute change) and rounding/reporting rules.
• Requirements for instrumentation accuracy and calibration (linear measurement and temperature control).
• Reporting format: specimen identification, pre- and post‑heating dimensions, test conditions and calculated results.

Typical use and users

Used by manufacturers of shaped insulating refractory products, incoming quality control laboratories, independent test houses, product development and R&D teams, and purchasers specifying thermal stability requirements. Typical applications include routine quality control, acceptance testing, comparison of formulations, and verification of dimensional stability before and after heat treatment or service exposure.

Related standards

ISO 2477:2005 revises and replaces earlier editions of ISO 2477 (notably ISO 2477:1987 and the original 1973 edition). It is part of the wider ISO/TC 33 body of standards covering refractory products and methods of test; users commonly refer to other ISO/TC 33 test methods for complementary properties (mechanical, thermal conductivity, etc.).

Keywords

shaped insulating refractory products; dimensional change; permanent change; shrinkage; thermal treatment; test method; ISO 2477; ISO/TC 33; heat stability; furnace test.

FAQ

Q: What is this standard?

A: ISO 2477:2005 is an ISO test method that specifies how to determine the permanent change in dimensions (shrinkage/expansion) of shaped insulating refractory products after a defined heating cycle.

Q: What does it cover?

A: It covers specimen preparation/selection, measurement locations, furnace heating and cooling cycle parameters, calculation of permanent dimensional change, and reporting requirements. It does not cover other physical or chemical properties.

Q: Who typically uses it?

A: Manufacturers, quality and testing laboratories, R&D teams, certification bodies and purchasers who need verified data on the dimensional stability of insulating refractory shapes under heat.

Q: Is it current or superseded?

A: The 2005 edition (Edition 3) is the published International Standard and has been subject to periodic ISO systematic review. As of the latest ISO lifecycle reviews, the 2005 edition remains the current published standard.

Q: Is it part of a series?

A: It is a standalone test-method standard within the set of ISO/TC 33 standards for refractory products. While not a multipart series in itself, it is related to other ISO standards on refractory testing and product specification maintained by the same technical committee.

Q: What are the key keywords?

A: Shaped insulating refractory products, dimensional change, permanent change, shrinkage, heat treatment, test method, ISO 2477.