ISO 10123:2013

Overview

ISO 10123:2013 specifies a laboratory test method for determining the shear strength of anaerobic-curing liquid adhesives using pin-and-collar specimens. The standard describes specimen geometry, preparation, apparatus (including a universal testing machine complying with ISO 7500-1), test procedure, and reporting requirements. Primarily intended for ranking and quality control of adhesives, ISO 10123:2013 is widely used in adhesive testing and evaluation of retaining and locking products (cylindrical assemblies and threaded fasteners).

Key topics and technical requirements

• Test principle: Measure the maximum load required to shear the adhesive joint between a metal pin and a slip collar, then calculate static shear strength τ = F / S (F = maximum load in N; S = bond area in mm²).
• Specimen geometry: Typical pin diameter 20 mm, collar inside diameter 20 mm, collar width 18.00 ± 0.05 mm, surface finish 0.8–1.6 µm. Effective bond length is specified (16 mm).
• Apparatus:
  • Universal testing machine, class 1, per ISO 7500-1.
  • Hardened steel specimen support and optional adaptors for using a tensile testing machine in compression (Annex A).
• Preparation:
  • Clean and degrease metal parts; store at (23 ± 2) °C before assembly.
  • Assemble ≥5 specimens per test. Apply adhesive to pin and collar, slip collar on within 6 s with helicoidal movement, cure per manufacturer’s instructions.
• Test procedure:
  • Load specimen in support; apply compressive load at 1–2 mm/min crosshead speed.
  • Record maximum load and compute shear strength.
• Reporting: Include full adhesive identification, substrate material and prep, application and curing conditions, conditioning, number of specimens, crosshead speed, average maximum load and shear strength with standard deviations.
• Notes: The method is intended for quality control and ranking; it does not necessarily predict in-service performance nor supply numerical design data.

Applications

• Quality control of anaerobic retaining adhesives used in pin-and-collar assemblies.
• Comparative laboratory testing for product development or batch acceptance.
• Evaluation of adhesives for locking and sealing threaded fasteners and other cylindrical assemblies.
• Component suppliers, adhesive manufacturers, and testing laboratories use this method to verify adhesive performance under controlled shear loading.

Who should use this standard

• Adhesive manufacturers and formulators
• Mechanical and automotive component manufacturers (retaining rings, bearings, threaded fasteners)
• Independent materials testing laboratories and R&D teams
• Quality assurance professionals responsible for adhesive acceptance testing

Related standards

• ISO 7500-1 (verification of testing machines)
• ISO 683-9 (reference material specification for low-grade carbon steels)
• ISO 4588 (preparation of metal surfaces for adhesive bonding)

Safety: Follow normal laboratory practice and manufacturer safety data for adhesives and solvents.