ISO 19882-2025 PDF

Full title and description

St ISO 19882-2025 — Gaseous hydrogen — Thermally activated pressure relief devices for compressed hydrogen vehicle fuel containers. This international standard specifies minimum design, performance and testing requirements for thermally activated pressure relief devices intended for use on compressed hydrogen fuel containers installed in land vehicles (light-duty, heavy-duty and industrial powered trucks).

Abstract

ISO 19882:2025 establishes minimum requirements for thermally activated pressure relief devices (PRDs) used on compressed gaseous-hydrogen vehicle fuel containers. It defines applicability, functional and safety requirements, test methods (including thermal exposure and operational verification), marking and information to be supplied, and acceptance criteria. The document is limited to thermally activated devices and does not cover reseating, resealing or pressure-activated devices. It is intended to harmonize device requirements with related vehicle and hydrogen-fuel standards to support safe on-board use and regulatory acceptance.

General information

• Status: Published
• Publication date: February 2025 (Edition 2)
• Publisher: International Organization for Standardization (ISO)
• ICS / categories: 27.075; 43.060.40
• Edition / version: Edition 2 (2025)
• Number of pages: 31

Scope

This standard applies to thermally activated pressure relief devices installed on gaseous hydrogen fuel containers for land vehicles using hydrogen compliant with fuel quality standards (e.g., ISO 14687). It covers devices suitable for on-board use in light-duty vehicles, heavy-duty vehicles and industrial powered trucks (such as forklifts). The standard provides requirements for design, materials, performance, testing (including thermal/fire exposure), marking and information but excludes reseating/resealing or purely pressure-activated devices. Requirements for other vehicle categories (rail, off-road, etc.) can be derived with consideration of service conditions.

Key topics and requirements

• Definitions and classification of thermally activated pressure relief devices for compressed hydrogen containers.
• Design and material requirements to ensure predictable thermal activation and safe venting of hydrogen.
• Performance criteria for activation temperature, flow capacity and device integrity under thermal exposure.
• Mandatory test methods, including thermal exposure/fire tests, functional activation tests and leakage checks.
• Acceptance criteria for pass/fail decisions following testing, including device operation and post‑test condition.
• Requirements for marking, documentation and information to be supplied with the device (installation, operating limits, replacement intervals).
• Compatibility/coordination notes with vehicle fuel-container standards and regulations (for example, standards for fuel containers and vehicle integration).

Typical use and users

Used by manufacturers of pressure relief devices, hydrogen fuel-container designers and manufacturers, vehicle OEMs integrating hydrogen fuel systems, test laboratories, conformity assessment bodies, and regulatory authorities. The standard supports safety engineers and certification teams who need consistent test procedures and acceptance criteria for thermally activated PRDs on hydrogen-powered vehicles.

Related standards

Commonly used with and referenced alongside: ISO 19881 (land vehicle hydrogen fuel containers), ISO 14687 (hydrogen fuel quality), IEC 62282-4-101 (fuel cell systems safety/test aspects), SAE J2579 (fuel system standard), UN GTR No. 13 and related ECE/UN regulations, and national standards such as CSA/ANSI HGV/ HGV 2. These documents together cover container design, fuel quality, vehicle integration, system safety and regulatory harmonization.

Keywords

thermally activated pressure relief device; PRD; hydrogen; compressed gaseous hydrogen; vehicle fuel container; safety device; venting; thermal activation; fire test; ISO 19882; hydrogen vehicles.

FAQ

Q: What is this standard?

A: ISO 19882:2025 is an international standard that specifies minimum requirements and test methods for thermally activated pressure relief devices used on compressed gaseous hydrogen vehicle fuel containers.

Q: What does it cover?

A: It covers design, material, performance and testing requirements (including thermal/fire exposure and functional tests), marking and documentation for thermally activated PRDs installed on hydrogen fuel containers for land vehicles. It does not cover reseating, resealing or pressure-activated devices.

Q: Who typically uses it?

A: Device manufacturers, container and vehicle OEMs, test houses, certification bodies, safety engineers and regulators involved in hydrogen vehicle systems and components.

Q: Is it current or superseded?

A: This is the current edition published in 2025 (Edition 2). It supersedes ISO 19882:2018.

Q: Is it part of a series?

A: Yes — it is part of the suite of standards for hydrogen technologies developed by ISO/TC 197 and is intended to be used alongside related standards such as ISO 19881 (fuel containers), ISO 14687 (fuel quality) and other vehicle/safety regulations and standards.

Q: What are the key keywords?

A: Thermally activated PRD, hydrogen, compressed gas, vehicle fuel container, activation temperature, fire test, venting, device marking.