Overview
ISO/TS 15877-7:2018 - Plastics piping systems for hot and cold water installations - Chlorinated poly(vvinyl chloride) (PVC‑C) - Part 7: Guidance for the assessment of conformity provides requirements and practical guidance for assessing conformity of PVC‑C materials, compounds, products and assemblies. The technical specification is intended to be used by manufacturers, testing laboratories and certification bodies to define the tests, sampling and quality‑plan elements required for product release and certification. It applies to PVC‑C piping systems for hot and cold water inside buildings (domestic and heating systems) under the design pressures and temperatures defined in ISO 15877‑1.
Key topics and requirements
- Scope and applicability: Conformity assessment guidance for PVC‑C pipes, fittings, valves, joints and assemblies used in hot and cold water installations.
- Conformity testing framework: Describes the roles of type testing (TT), batch release tests (BRT), process verification tests (PVT), audit tests (AT), indirect tests (IT) and witness tests (WT).
- Grouping and sampling: Guidance on grouping by pressure class, size and fitting type to optimize testing and sampling plans.
- Quality plan integration: Requirements for including conformity tests and sampling in the manufacturer’s quality management system and quality plan.
- Certification procedures: Information to support the establishment of third‑party certification and audit programs; references to preferred competence standards for bodies (ISO/IEC 17065 for certification bodies, ISO/IEC 17025 for testing laboratories and ISO/IEC 17020 for inspection bodies).
- Record keeping and traceability: Expectations for maintaining test records and product batch identification to support conformity assessment.
- Annex A: A basic test matrix is provided to help users map tests to product types and assessment activities.
Practical applications
- Ensures consistent product safety and performance for PVC‑C piping used in potable water and heating systems.
- Supports product manufacturers in creating compliant quality plans, release procedures and internal process controls.
- Enables certification bodies and testing laboratories to design auditable conformity schemes and sampling plans.
- Assists specifiers, regulators and procurement teams to verify that PVC‑C piping meets standardized conformity assessment practices.
Who should use this standard
- PVC‑C pipe, fitting and valve manufacturers
- Testing laboratories, inspection and certification bodies
- Product designers, system specifiers, building services engineers and regulators interested in standardized conformity evidence for piping systems.
Related standards
Keywords: ISO/TS 15877-7:2018, PVC‑C, chlorinated poly(vinyl chloride), plastics piping systems, assessment of conformity, type testing, batch release tests, process verification, certification.