ISO 24345:2006

Overview

ISO 24345:2006 specifies a laboratory method to determine the peel resistance of resilient floor coverings - the force required to separate two adjacent layers by peeling. The standard provides a repeatable procedure for sampling, conditioning, test setup, measurement and reporting, supporting manufacturers, test laboratories and quality assurance teams that need reliable data on layer adhesion and product integrity.

Key Topics

• Scope: Method for measuring resistance to separation (peel) between two layers of a resilient floor covering.
• Terminology: Defines resistance au pelage (peel resistance) as the force applied across the specimen width to separate adjacent layers.
• Apparatus: A tensile testing machine with appropriate gripping and a recording device capable of maintaining the required test speed and recording force.
• Specimen sampling:
  • Take a representative sample of the material.
  • Cut six specimens, minimum length 150 mm and width (50 ± 1) mm.
  • Three specimens cut in the length direction and three in the width direction, taken at regular intervals with at least 100 mm from outer sample edge.
• Conditioning: Specimens conditioned at (23 ± 2) °C and (50 ± 5) % relative humidity for at least 24 hours; maintain conditions during testing.
• Test procedure:
  • Initiate separation sufficiently to grip the two layers.
  • Mount specimen with grips about 50 mm apart so tension is applied across the full width.
  • Test separation speed: (100 ± 5) mm/min and record the separation force after initial separation.
• Calculations:
  • Exclude the first and last quarter of the recorded trace for each specimen.
  • Use a grid to read force values at intersections with the curve; compute the average peel resistance for each specimen and direction, rounded to 5 N.
  • Express results in newtons per 50 mm.
• Reporting: Test report must state conformity with ISO 24345:2006, dates, full product identification, sample history, any deviations, averaged and minimum values for each direction, and type of failure if peeling was abnormal.
• Reproducibility: An interlaboratory study is referenced to establish method fidelity.

Applications

• Quality control of multilayer resilient floor coverings to verify adhesive performance and manufacturing consistency.
• Product specification and acceptance testing for manufacturers, flooring suppliers and independent test labs.
• Failure analysis when delamination or poor adhesion is suspected in installed or sample products.

Related Standards

• EN 431 - Resilient floor coverings: determination of peel resistance (related European procedure).
• JIS A 1454 - Test methods for resilient floor coverings, paragraph on peel strength.

This standard helps ensure consistent measurement of peel resistance, aiding product development, specification compliance and comparability across laboratories.