DIN EN ISO 10545-10 2021-12 PDF

Full title and description

STB DIN EN ISO 10545-10 2021-12 — Ceramic tiles — Part 10: Determination of moisture expansion. This document (ISO 10545-10:2021, published as an EN ISO adoption and implemented by national bodies) specifies a standardized laboratory method to measure dimensional change (moisture-induced expansion) of ceramic tiles using controlled refiring and accelerated immersion in boiling water followed by precision length measurement.

Abstract

Specifies a test procedure to determine the moisture expansion of glazed and unglazed ceramic tiles. The method stabilizes specimens by refiring, immerses them in boiling deionized/distilled water for a defined period (24 h), and measures the proportional change in length. Results are reported as mm/m or percentage expansion to support quality control, product development and conformity assessment.

General information

• Status: Published (ISO 10545-10:2021; adopted by CEN as EN ISO 10545-10:2021 and issued by national bodies).
• Publication date: ISO publication June 2021 (second edition, published 27 June 2021; corrected version issued September 2021). (Title indicates a national adoption label "2021-12".)
• Publisher: International Organization for Standardization (ISO); endorsed/issued in CEN/EN form and adopted by national bodies (DIN / national standards institutes where applicable).
• ICS / categories: 91.100.23 (Ceramic tiles).
• Edition / version: 2nd edition — ISO 10545-10:2021 (revises the earlier 1995/1997 editions/EN versions).
• Number of pages: 4 pages (main text; includes informative annex A).

Scope

This standard specifies a laboratory method for determining moisture expansion of ceramic tiles. It applies to whole tiles or cut specimens (selection rules for tile area and specimen sizes are given) and defines specimen pre-treatment (refiring), the boiling-water immersion regime and the measurement / result-expression procedures required to determine dimensional change due to moisture. The method is intended for routine testing, specification compliance and comparative assessment of tile batches.

Key topics and requirements

• Principle: refire specimens to stabilize structure, then immerse in boiling deionized/distilled water and measure length change.
• Specimen selection: whole tiles for smaller sizes (nominal area ≤ 3 600 cm²) or cut specimens from the centre for larger tiles; minimum specimen dimensions specified.
• Apparatus: kiln for refiring (controlled up to typical temperatures cited), measuring frame with micrometer or dial gauge (accuracy to 0.01% or better), Invar/reference bars and boiling-water bath.
• Procedure: controlled refiring, thermal stabilization, immersion in boiling water (24 h) without specimen contact, repeat measurements and reporting of individual and average expansions.
• Expression of results: moisture expansion reported as mm per metre (mm/m) and as percentage; test report must state individual specimen values and highlight the maximum.
• Informative guidance: Annex A provides remarks on typical behaviour and practical limits (a commonly referenced practical limit is 0.06 % when used for installation risk assessment).

Typical use and users

Used by ceramic tile manufacturers for product development and quality control, accredited testing laboratories for type and acceptance testing, specifiers and architects for performance assessment, and conformity/market surveillance bodies verifying compliance with tile characteristic requirements. Results help inform suitability for particular substrates and climatic conditions.

Related standards

Part of the ISO 10545 series (tests for ceramic tiles) — other parts cover sampling, dimensions and surface quality, water absorption, mechanical strength, abrasion, thermal shock, frost resistance, chemical resistance, stains, lead and cadmium release, etc. This part is cross-referenced by EN 14411 and other ceramic tile product/conformity standards.

Keywords

ISO 10545-10, moisture expansion, ceramic tiles, dimensional stability, tile testing, boiling-water immersion, refiring, EN ISO, DIN adoption, test method, tile quality control.

FAQ

Q: What is this standard?

A: ISO 10545-10:2021 (issued as EN ISO 10545-10:2021 and adopted nationally) is the international test method that specifies how to determine the moisture-induced expansion of ceramic tiles using a refiring and boiling-water immersion procedure.

Q: What does it cover?

A: It covers specimen preparation (whole tiles or cut specimens), apparatus requirements, a controlled refiring step, immersion in boiling deionized/distilled water (typically 24 h), measurement of length change and calculation/reporting of results in mm/m or percent. Annex A gives informative guidance on interpreting results.

Q: Who typically uses it?

A: Tile manufacturers, independent testing laboratories, architects/specifiers, product certification bodies and regulatory/market surveillance organizations use the standard to assess tile dimensional stability and to support specification and installation decisions.

Q: Is it current or superseded?

A: Current — ISO 10545-10:2021 is the second edition (revising the earlier 1995/1997 versions) and was published in mid‑2021; it has been adopted as EN ISO 10545-10:2021 and implemented by national bodies. (If you need the exact national adoption date for a specific prefix such as "STB" or a DIN national publication stamp dated "2021-12", provide the national standards body and we can check their publication record.)

Q: Is it part of a series?

A: Yes — it is part of the ISO 10545 series of ceramic tile test methods (other parts address water absorption, mechanical properties, abrasion, frost resistance, chemical resistance, stains, lead/cadmium release, etc.). Use this part together with other ISO 10545 parts and applicable regional/national standards for complete product evaluation.

Q: What are the key keywords?

A: Moisture expansion; ceramic tiles; boiling-water immersion; refiring; dimensional stability; ISO 10545-10; EN ISO 10545-10; test method; tile quality control.