SIST EN ISO 6259-2:2020 PDF

Overview

EN ISO 6259-2:2020 - Thermoplastics pipes: Determination of tensile properties (Part 2) - provides a standardized test method for measuring the tensile behaviour of pipes made from PVC-U, PVC-O, PVC-C and PVC-HI. Prepared by ISO/TC 138 in cooperation with CEN/TC 155, this 2020 edition updates the earlier 1997 version, introduces PVC-O, and adds stress at break as a recorded characteristic. The standard is intended for testing pipes “as supplied” and gives guidance for sampling, specimen preparation, testing and reporting.

Key topics and requirements

• Scope and purpose: Method for determining tensile properties of unplasticized, oriented, chlorinated and high‑impact PVC pipes.
• Measured properties: Stress at yield, stress at break and elongation at break (principal outputs).
• Test specimen guidance: Sampling from the pipe, dimensions, cutting and machining methods for thin and thick‑walled pipes.
• Test conditions: Conditioning, test speed, apparatus and general procedure are specified (with reference to ISO 6259‑1 for general conditions).
• Result expression and reporting: How to calculate and report tensile results, plus required test report contents.
• Informative annexes: Annexes A–D provide basic specifications for PVC-U, PVC-O, PVC-C and PVC-HI pipes (for information only).
• Standards linkage: Developed on the basis of ISO 527‑1 / ISO 527‑2; cross-references ISO 6259‑1 for general test conditions.

Practical applications

• Quality control and production monitoring of PVC pipe manufacturing.
• Material verification during acceptance testing of thermoplastic piping products.
• Comparative testing for research & development when selecting PVC grades or assessing process changes.
• Supporting conformity assessment and product documentation for procurement or regulatory compliance.

Who uses this standard

• Pipe and compound manufacturers (process control, product development)
• Independent test laboratories and certification bodies
• Specifiers, engineers and procurement professionals working on water, drainage and industrial piping systems
• Regulators and standards committees evaluating product performance or harmonized requirements

Related standards

• ISO 6259‑1: General method of test for tensile properties of thermoplastics pipes
• ISO 527 series: Tensile testing of plastics (material/method background)

EN ISO 6259‑2:2020 is essential for stakeholders needing consistent, repeatable tensile test data for PVC piping products and supports reliable product specification, quality assurance and R&D activities.