ISO 10802-2020 PDF

Full title and description

ISO 10802:2020 — Ductile iron pipelines — Hydrostatic testing after installation. This international standard specifies site hydrostatic acceptance tests and associated safety and test‑preparation requirements for installed pressure and non‑pressure ductile iron pipelines used to convey water and other liquids (not intended for gas testing).

Abstract

ISO 10802:2020 defines how to prepare, fill, vent, pressurize and assess installed ductile‑iron pipeline test sections on site. It covers accepted test methods (water‑loss falling pressure and constant pressure tests, pressure‑drop alternatives), pressure definitions and the system test pressure formulae, safety and anchoring requirements, limits on test section size and reporting/acceptance criteria relevant to commissioning and acceptance of water mains and distribution pipelines.

General information

• Status: Published (International Standard).
• Publication date: August 2020 (edition 2, published 2020).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 23.040.01 (Pipeline components and pipelines in general).
• Edition / version: Edition 2 (2020).
• Number of pages: 20 (ISO published document page count).

Scope

Specifies site hydrostatic acceptance tests for installed pressure and non‑pressure ductile iron pipelines used for conveying water and other liquids. The document excludes testing of pipelines for gas and states that pressures are expressed in bars. It gives requirements for dividing pipelines into test sections, filling and venting, allowable test pressures and safety/anchoring measures for temporary closures and backfilling during tests.

Key topics and requirements

• Accepted test methods: water‑loss (falling pressure and constant pressure) and pressure‑drop (direct reading) approaches for assessing leakage and tightness.
• System test pressure (STP) definitions and pairing rules: STP is defined in relation to design pressure (e.g., STP = 1.5 × design pressure when design pressure ≤ 10 bar, or STP = design pressure + 5 when design pressure > 10 bar) and must not exceed component or valve ratings.
• Safety requirements: use of blank flanges or appropriately restrained temporary closures, anchoring/thrust blocks for changes of direction or restraint points, prohibition of air testing in place of water testing, personnel safety controls and guarded excavations.
• Test section preparation: guidance on reasonable maximum test section length (practical limits are given, e.g., 1 500 m for pressure pipelines unless otherwise specified), partial backfilling practices to prevent pipe movement and requirements for venting high points.
• Filling and venting: complete filling with water, adequate air venting at high points and use of potable water for potable mains unless otherwise specified.
• Acceptance and reporting: criteria for pass/fail based on measured leakage or pressure drop, requirements for calibrated instruments and example reporting formats/annex guidance.

Typical use and users

Used by municipal water utilities, pipeline contractors and installers, project engineers specifying commissioning tests, site supervisors and independent inspectors verifying newly laid or rehabilitated ductile‑iron mains. Typical activities include commissioning new water mains, verifying joint integrity after installation or repair, and formal acceptance testing after backfill and installation works.

Related standards

ISO 10802 is part of the family of ductile‑iron pipeline standards and is commonly used with or referenced by other ISO documents, including ISO 2531 (ductile iron pipes, fittings and their joints for water), ISO 10803 (design methods for ductile‑iron pipes), ISO 10804 (restrained joint systems / anchoring design rules), ISO 21051 (construction/installation guidance) and related product/component standards. Project specifications frequently reference both ISO 10802 and these component standards when defining commissioning and acceptance tests.

Keywords

ductile iron, pipeline, hydrostatic test, water mains, system test pressure, leakage test, pressure drop, commissioning, acceptance test, ISO 10802.

FAQ

Q: What is this standard?

A: ISO 10802:2020 is an ISO International Standard that specifies site hydrostatic acceptance tests for installed ductile‑iron pipelines used to convey water and other liquids; it provides test methods, pressure definitions and safety/installation guidance for commissioning and acceptance.

Q: What does it cover?

A: It covers preparation of pipeline test sections, filling and venting procedures, accepted leakage/pressure test methods (falling/constant water‑loss and pressure‑drop alternatives), formulas for system test pressure, anchoring and safety requirements, limits on test section size and guidance on acceptance criteria and reporting. It does not cover gas pipeline testing.

Q: Who typically uses it?

A: Municipal water authorities, design engineers, contractors, site testing teams and independent inspectors responsible for commissioning and accepting ductile‑iron water mains.

Q: Is it current or superseded?

A: The 2020 edition (Edition 2) supersedes the earlier ISO 10802:1992; the 2020 version is the current published edition (published August 2020). Users should check for any subsequent amendments or national adoptions before use.

Q: Is it part of a series?

A: Yes — it is part of the suite of ISO documents on ductile‑iron pipelines and their components (for example ISO 2531, ISO 10803, ISO 10804 and related installation/construction standards) and is intended to be used together with those documents when specifying and testing ductile‑iron pipeline systems.

Q: What are the key keywords?

A: Hydrostatic testing, system test pressure (STP), water‑loss test, pressure‑drop test, leakage allowance, thrust anchoring, test section, commissioning, ductile iron.