ISO 24346:2006

Overview

ISO 24346:2006 is an international standard developed by the International Organization for Standardization (ISO) that specifies a precise method for determining the overall thickness of resilient floor coverings. This standard ensures consistency and accuracy in the measurement of flooring materials such as vinyl, rubber, cork, and other resilient types, which are widely used in residential, commercial, and industrial applications.

The standard focuses on measuring the vertical distance between two parallel plates pressing on the flooring sample under a specified load, simulating real-world compression conditions. ISO 24346:2006 aims to provide reliable data for manufacturers, testing laboratories, and quality control professionals to assess product compliance, durability, and performance characteristics related to thickness.

Key Topics

• Scope and Definitions: The standard defines the term overall thickness as the vertical distance between two parallel plates compressing the resilient flooring under a controlled load.

• Test Principle: Measurement is performed by placing a sample between two parallel plates and applying a pressure adapted to the sample’s structure to determine thickness accurately.

• Equipment Requirements:

  • A circular movable top plate with diameter and mass specifications based on the flooring type.
  • A fixed lower plate with minimum size criteria.
  • A dial gauge or comparator capable of measuring thickness with a precision of 0.01 mm.
  • An annular or horseshoe-shaped weight to ensure the sample remains flat during testing.

• Sampling Procedure:

  • For sheet materials (in rolls), samples are taken from both ends of the roll.
  • For tile-type resilient flooring, five tiles are selected per box, excluding first and last tiles.
  • Samples are then cut to specified dimensions depending on material type.

• Conditioning: Samples must be conditioned at (23 ± 2) °C and (50 ± 5)% relative humidity for at least 24 hours before testing to ensure consistent environmental conditions.

• Testing Procedure:

  • Ensure calibrated and clean apparatus, set zero reading.
  • Place the sample with the wear layer upwards, position the weight to apply uniform pressure.
  • Take measurements in at least five random locations per sample, avoiding edges.
  • Record measurements to 0.01 mm precision.

• Reporting:

  • Average thickness, and if required, minimum and maximum thickness values.
  • Detailed sample identification, conditioning conditions, and any deviations from the standard test method.

Applications

ISO 24346:2006 is essential for industries involved in the production, testing, and certification of resilient floor coverings. Key practical applications include:

• Quality Control: Manufacturers use this standard to verify product specifications and ensure uniform thickness throughout production batches, impacting flooring durability and performance.

• Product Certification: Compliance with ISO 24346 supports third-party certification bodies in validating the thickness criteria for resilient flooring products in order to meet international market requirements.

• Research and Development: Material scientists and engineers employ this method during product development to evaluate material compression characteristics and performance under load.

• Installation Guidelines: Contractors and professionals rely on accurate thickness data to determine suitability for subfloor preparation, underlayment compatibility, and overall flooring system design.

• Benchmarking and Comparison: Facilitates objective comparison across products from different manufacturers, aiding purchasing decisions and meeting client specifications.

Related Standards

Several related standards complement ISO 24346:2006 by addressing other physical properties or measurement methods for resilient floor coverings:

• EN 428 – European standard specifying determination of overall thickness of resilient flooring.

• ASTM F386 – American test method for thickness measurement of resilient flooring materials with flat surfaces.

• ASTM F387 – Standard for measuring thickness of resilient flooring with foam layers, relevant to materials with cushioning backing.

• JIS A 1454 – Japanese test methods covering sizing and dimensional properties of resilient floor covering tiles and sheets.

These standards share common goals of consistency and accuracy in product characterization to support global harmonization in flooring quality assessment.

Implementing ISO 24346:2006 ensures precise, repeatable, and standardized thickness measurement for resilient floor coverings, thereby supporting product quality, regulatory compliance, and sustainable industry practices worldwide.