Overview
ISO 13264:2010 defines a standardized test method to assess the mechanical strength or flexibility of fabricated thermoplastic fittings intended for non-pressure underground drainage and sewerage. The method evaluates the fitted assembly under a bending moment or a specified displacement at the critical point where structural damage is most likely to start. The standard supports product verification, quality control and compliance testing for manufacturers, testing laboratories and specifiers.
Key Topics
- Test principle: An assembly of the fabricated fitting, adjacent pipe(s) and anchorages is subjected to a moment (M) or a specified displacement (A) at the critical point. The determining factor is whichever of M or A is reached first.
- Sampling & conditioning: Sampling procedure and the number of pieces are set by the referring standard. Default conditioning is (23 ± 5) °C for at least 21 days unless otherwise specified.
- Apparatus: Anchorages that hold the fitting rigid without deforming it; loading equipment to apply a force producing the required moment; measurement instruments for force and displacement; means to ensure joint tightness when necessary.
- Key test parameters: When displacement is the deciding factor, the arm length L shall be (1 200 ± 10) mm. The force is applied within 1 s to 20 s to reach the target moment or displacement, and the load/displacement is maintained for 15 minutes while the assembly is inspected.
- Inspection criteria: Monitor and record any signs of splitting, cracking, separation or leakage. Any leakage at the fabricated joint is recorded as a failure.
- Table 1: The standard provides minimum moment/displacement values by nominal size (DN/OD); for DN/OD series, the parameters for the next larger DN/OD are used.
Applications
- Product development and type testing for thermoplastic fittings used in non-pressure underground drainage and sewerage.
- Factory quality control and third-party conformity testing to demonstrate resistance to mechanical loads and joint integrity.
- Specification and procurement where documented mechanical performance and leak resistance are required.
Practical benefits include clearer acceptance criteria for fittings, repeatable test setups for laboratories, and documented test reports that support regulatory and contractual compliance.
Related Standards
ISO 13264:2010 was prepared by ISO/TC 138 (Plastics pipes, fittings and valves for the transport of fluids), SC 1. The standard is intended to be used together with the referring standard that specifies sampling, ring stiffness class, and any variant conditioning or test parameters. Test laboratories should also consult related ISO/TC 138 standards covering pipe stiffness, joint types and product-specific requirements.
Test Report Content (high level)
A test report should reference ISO 13264:2010, identify the product and pipe stiffness used, state jointing method (mechanical, cemented, fused), record the determining factor (moment or displacement), give test apparatus details, report the applied moment/displacement, list any observed splitting/cracking/separation/leakage, note any factors affecting results, and include the test date.
Open preview (PDF)Thermoplastics piping systems for non-pressure underground drainage and sewerage — Thermoplastics fittings — Test method for mechanical strength or flexibility of fabricated fittings
