ISO 15877-2:2009/Amd 2:2020

Overview

ISO 15877-2:2009/Amd 2:2020 is an important amendment to the international standard governing plastics piping systems used for hot and cold water installations. Specifically, it addresses chlorinated poly(vinyl chloride) (PVC-C) pipes under Part 2 of the ISO 15877 series. Published by ISO in 2020, this updated standard ensures that PVC-C piping components meet revised specifications for pipe dimensions, tolerances, and performance criteria.

This standard is crucial for manufacturers, engineers, and installers involved in designing and deploying piping systems that demand reliable, durable, and safe materials for domestic and commercial water supply networks.

Key Topics

• Scope Update: Amendment 2 focuses on the specifications for PVC-C pipes used in water installations, reinforcing dimensional accuracy and quality standards.
• Dimensions and Wall Thickness: Detailed tables specify nominal outside diameters (DN/OD) and corresponding wall thicknesses for various pipe sizes. These ensure compatibility and standardization across different applications.
• Tolerance Levels: The amendment aligns tolerances on wall thicknesses with Grade W of ISO 11922-1, providing clear guidelines on allowable variations to maintain piping system integrity.
• Materials and Performance: The document references test methods such as Vicat softening temperature (VST), indicating conditions for sample annealing before testing to accurately measure thermal properties of PVC-C pipes.
• Compliance and Standardization: The update reflects cooperation between ISO and CEN under the Vienna Agreement, promoting harmonization of European and international standards for plastics piping systems.

Applications

The updated ISO 15877-2:2009/Amd 2:2020 standard finds direct application in:

• Residential and Commercial Water Supply: Ensuring that hot and cold water distribution piping meets safety, durability, and dimension requirements using PVC-C materials.
• Building and Construction Industry: Assisting architects and engineers in specifying compliant PVC-C pipes according to internationally recognized dimensions and tolerances.
• Manufacturing of Plastics Pipes: Guiding manufacturers on precise dimensional controls and quality assurance for production consistency.
• Infrastructure Maintenance: Supporting repair and replacement projects by providing standard pipe sizes and wall thickness specifications for seamless integration of new piping elements.
• Plumbing System Design: Enabling designers to select appropriate PVC-C pipes based on standardized size series (S 6.3, S 5, S 4), facilitating compatibility and system reliability.

Related Standards

Professionals seeking comprehensive guidance in plastics piping for water installations should also consider associated standards, including:

• ISO 15877 Series: Encompassing multiple parts covering different components of PVC-C piping systems such as fittings and valves.
• ISO 4065: Standard specifying dimensions for thermoplastics pipes and fittings ensuring consistency across pipe systems.
• ISO 11922-1: Defines tolerance grades for plastics pipes, referenced in this amendment to regulate wall thickness tolerances.
• ISO/IEC Directives Part 1 and Part 2: Guidelines on development, approval, and maintenance of ISO standards, ensuring procedural compliance and document integrity.
• European Standards (EN) for Plastics Piping: Coordinated through CEN, facilitating alignment across European countries.

Keywords: ISO 15877-2 amendment, PVC-C pipes, plastics piping standards, hot and cold water installations, pipe dimensions, PVC-C wall thickness tolerances, plastics piping systems, international piping standards, building water supply, plastics pipe manufacturing.