ISO 15877-5:2009/Amd 1:2010

Overview

ISO 15877-5:2009/Amd 1:2010 is an important amendment to the international standard governing plastics piping systems for hot and cold water installations made from chlorinated poly(vinyl chloride) (PVC-C). This amendment focuses specifically on the fitness for purpose of the PVC-C piping system, ensuring its reliability, durability, and safety in both domestic and commercial water supply applications.

Developed collaboratively by ISO and the European Committee for Standardization (CEN), this document updates performance requirements, including pressure testing parameters and material stress limits. It is essential for manufacturers, installers, and regulators involved in the specification, production, and quality control of PVC-C piping systems designed for plumbing and water infrastructure.

Key Topics

• PVC-C Type I Systems: The amendment incorporates new application class 4 as defined in ISO 10508 for low-temperature heating applications, reflecting practical use cases with service pressures of 4 bar and 6 bar.
• Hydrostatic Pressure Testing: Updated tables specify test pressures, durations, and material stress values for solvent-welded joints and mechanical assemblies under different service classes.
• Temperature and Pressure Limits:
  • Maximum service temperatures capped at 70°C or 80°C depending on the class.
  • Pressure test values are set to ensure safety margins above the intended service pressures.
• Material Stress Allowances: Defines specific design stress values (in MPa) for fittings and tubes made from PVC-C to guarantee longevity under operational conditions.
• Testing Durations: Long-term (3,000 hours) hydrostatic testing ensures the piping system withstands prolonged exposure to pressurized water at elevated temperatures without degradation.

Applications

ISO 15877-5:2009/Amd 1:2010 is highly relevant for the following practical applications:

• Domestic and Commercial Water Supply Systems: Ensures safe transport of potable water at hot and cold temperatures using PVC-C piping.
• Low-Temperature Heating Installations: Validates PVC-C systems’ suitability for building heating circuits operating at pressures up to 6 bar.
• Building Plumbing Infrastructure: Guides the selection and testing of plastic piping components to meet international quality and safety standards.
• Manufacturing Quality Assurance: Provides manufacturers with clear criteria for pressure ratings, mechanical joint integrity, and performance testing to comply with global market requirements.
• Regulatory Compliance and Certification: Supports national and international plumbing codes by referencing a harmonized technical standard.

Related Standards

In conjunction with ISO 15877-5:2009/Amd 1:2010, professionals often refer to:

• ISO 15877 Parts 1 to 4: Cover materials, dimensions, and physical properties of PVC-C piping systems.
• ISO 10508: Defines application classes and service conditions for plastic piping used in heating and water installations.
• CEN/TC 155 Standards: European standards harmonized with ISO regarding plastic piping and fittings.
• ISO 138: Addresses plastics tubes, fittings, and valves for fluid transport, complementing PVC-C system specifications.
• Local Plumbing and Building Codes: Often reference ISO standards to establish minimum requirements for sanitary and heating water systems.

This amendment enhances the durability, performance, and safety benchmarks for PVC-C piping systems, facilitating their continued use and acceptance worldwide. Adhering to ISO 15877-5:2009/Amd 1:2010 helps ensure water installation systems are robust, efficient, and compliant with evolving international regulations.