Overview
EN ISO 10931:2005 - Plastics piping systems for industrial applications - Poly(vinylidene fluoride) (PVDF) specifies characteristics and requirements for PVDF pipes, fittings, valves and ancillary components used in above-ground thermoplastics piping systems for industrial applications. Intended for designers, manufacturers, certification bodies and users, the standard covers material, performance, testing, design, installation, marking and traceability for PVDF systems used up to 150 °C (manufacturer advice recommended above 120 °C).
Key topics and technical requirements
- Material requirements: PVDF-specific characteristics and the material-dependent requirements given in Annex A.
- Performance and testing: Mechanical, physical, chemical and electrical characteristics; hydrostatic and pressure-resistance testing referenced to ISO methods (e.g., ISO 1167, ISO 9080).
- Geometrical and dimensional control: Component dimensions and tolerances following plastics piping standards (e.g., ISO 3126, ISO 11922-1).
- System design: Design for adequate strength, joint compatibility, and classification of components for industrial fluid conveyance.
- Installation and use: Requirements for correct installation of thermoplastics piping systems and guidance on permissible applications and limitations.
- Marking, manufacture and traceability: Declaration of conformity, product marking and traceability requirements (important for inspection and regulatory compliance).
- Regulatory relationship: Mapped to the EU Pressure Equipment Directive (97/23/EC PED) via Annex ZA for presumption of conformity where applicable.
Practical applications and users
EN ISO 10931:2005 is applicable to PVDF piping systems in industries such as:
- Chemical plants and electroplating/pickling facilities
- Semiconductor manufacturing and high-purity process lines
- Industrial wastewater and sewerage systems
- Power engineering (cooling and general-purpose water)
- Agricultural production and water treatment
Typical users:
- Design and process engineers selecting PVDF for chemical resistance and high-temperature service
- Manufacturers of PVDF pipes, fittings and valves ensuring product conformity
- Testing laboratories and inspection bodies performing hydrostatic, mechanical and chemical resistance tests
- Certification and regulatory authorities assessing compliance with PED and national regulations
- Plant operators specifying materials for corrosive or high-purity fluid handling
Related standards
- ISO 1167 (hydrostatic pressure testing), ISO 9080 (long-term hydrostatic strength), ISO 3126 (dimensions), ISO 11922-1, ISO 12162 and other plastics piping standards.
- EN ISO 10931 aligns with existing international product standards for plastics piping; valves may require additional valve-specific standards.
This standard is essential when specifying or certifying PVDF piping systems for industrial applications where chemical resistance, thermal performance (up to 150 °C) and regulatory compliance (PED) are critical.
