ISO 13259-2020 PDF

Full title and description

Thermoplastics piping systems for underground non-pressure applications — Test method for leaktightness of elastomeric sealing ring type joints. This International Standard specifies procedures to determine the leaktightness of elastomeric sealing‑ring joints used in buried thermoplastic non‑pressure piping systems, including test pressures and mechanical deflection conditions for evaluating joint performance.

Abstract

This document defines a laboratory test method to assess the leaktightness of elastomeric sealing‑ring type joints for buried thermoplastics non‑pressure piping systems. Tests are defined at three basic test pressures (p1: internal negative air pressure/partial vacuum; p2: low internal hydrostatic pressure; p3: higher internal hydrostatic pressure) and under four test conditions: Condition A (no additional diametric or angular deflection), Condition B (diametric deflection), Condition C (angular deflection) and Condition D (simultaneous angular and diametric deflection). The selection of applicable test pressures and conditions is determined by the referring product standard.

General information

• Status: Published
• Publication date: July 2020 (edition published 2020-07)
• Publisher: International Organization for Standardization (ISO)
• ICS / categories: 23.040.20 (Plastics pipes); 91.140.80 (Drainage systems)
• Edition / version: Edition 3 (2020)
• Number of pages: 10 (main ISO bibliographic entry)

Key bibliographic details above are taken from the ISO bibliographic entry for ISO 13259:2020.

Scope

Applies to laboratory testing of elastomeric sealing‑ring type joints used in buried thermoplastic non‑pressure piping systems; establishes test pressures, the four specified test conditions (A–D), specimen preparation and general test procedure to determine whether joints meet leaktightness performance required by the referring product standard. Selection of which test pressures and conditions to apply is made by the referring (product) standard.

Key topics and requirements

• Definition of three basic test pressures: p1 (internal negative air pressure/partial vacuum), p2 (low hydrostatic pressure) and p3 (higher hydrostatic pressure).
• Four mandatory test conditions describing allowable mechanical deflections: Condition A (no deflection), B (diametric deflection), C (angular deflection) and D (simultaneous angular and diametric deflection).
• Specimen assembly and alignment guidance for elastomeric sealing‑ring joints prior to testing.
• Test apparatus and instrumentation requirements to apply and measure specified pressures and to detect leakage.
• Test execution steps and reporting elements (applied pressure(s), condition(s), observations and leakage outcomes) to enable reproducible evaluation and comparison to the referring standard's acceptance criteria.

Items above summarize the principle requirements and test structure provided in the standard.

Typical use and users

Used by standards writers and product committees to specify joint testing requirements in product standards; by manufacturers of pipes, fittings and elastomeric seals for type‑approval and quality control; by independent testing laboratories that perform conformity and type tests; and by specifiers and municipal/public works engineers who need assurance of joint performance for buried non‑pressure drainage and sewerage systems.

Related standards

ISO 13259:2020 is part of the ISO technical work on thermoplastics piping systems for buried non‑pressure applications and is associated with other test‑method standards in the ISO 1326x series (for example, ISO 13263 and ISO 13264 for fittings test methods). More recent complementary work addressing long‑term sealing performance includes ISO 13265 (long‑term sealing pressure estimation).

Keywords

leaktightness, elastomeric sealing ring, sealing ring joint, thermoplastics piping, buried non‑pressure piping, drainage, hydrostatic test, vacuum test, joint deflection, test method.

FAQ

Q: What is this standard?

A: ISO 13259:2020 is an International Standard that specifies a laboratory test method to determine the leaktightness of elastomeric sealing‑ring type joints used in buried thermoplastic non‑pressure piping systems.

Q: What does it cover?

A: It covers the defined test pressures and four mechanical test conditions (A–D), specimen preparation, test apparatus basics, execution steps and reporting needed to evaluate joint leaktightness; the referring product standard determines which pressures and conditions apply for a given product.

Q: Who typically uses it?

A: Pipe and fitting manufacturers, sealing‑ring suppliers, independent testing laboratories, standards committees and infrastructure engineers involved with non‑pressure drainage and sewerage systems.

Q: Is it current or superseded?

A: ISO 13259:2020 is the published (current) edition (Edition 3, published July 2020). Earlier editions (for example 2018 and 2010 versions) have been replaced by the 2020 edition.

Q: Is it part of a series?

A: Yes — it is one of a group of ISO test‑method standards addressing thermoplastics piping systems for buried non‑pressure applications (the ISO 1326x series). Related documents address other test methods for fittings, impact strength, mechanical strength/flexibility and long‑term sealing performance (for example ISO 13263, ISO 13264 and ISO 13265).

Q: What are the key keywords?

A: leaktightness; elastomeric sealing ring; sealing‑ring joint; thermoplastics piping; buried non‑pressure; vacuum test; hydrostatic test; joint deflection.