ISO 14451-1:2013

Overview

ISO 14451-1:2013 - Pyrotechnic articles for vehicles - Part 1: Terminology defines the standardized vocabulary used in the ISO 14451 series. Published in 2013 under a CEN/ISO collaboration (Vienna Agreement), this part establishes terms and definitions related to test methods and requirements for vehicle pyrotechnic articles (airbag gas generators, pretensioners, igniters, etc.). The standard is bilingual (English/French) with Russian as an official language; German equivalents are provided for information by DIN.

Key topics

ISO 14451-1 focuses on consistent, unambiguous terminology that supports testing, certification and product specification. Major topics include:

• General terms: all-fire (response to a stimulus), no-fire, intended behaviour, foreseeable behaviour, generic type.
• Explosive content: net explosive mass (NEM) and related designations (NEQ, NEC, NEW noted as synonymous in practice).
• Packaging: primary pack (smallest unit for distribution/sale) and labelling considerations.
• Testing terminology:
  • Environmental conditioning - exposure to temperature, humidity, vibration to simulate real-world influences.
  • Fire test - exposure to flame/high temperature to assess structural integrity and auto‑ignition.
  • Functioning test - firing without fixation in open air to assess behavior.
  • Tank test - firing into a closed container to evaluate gas generators/initiators.
  • Fragmentation and opening - definitions of change-of-shape outcomes during tests.
  • Test sample distinctions - exposed vs. unexposed samples, testing point, representative sampling.

Applications

ISO 14451-1 is a foundational reference used to:

• Harmonize terminology across test methods and requirements in the ISO 14451 series.
• Support test laboratories, OEMs, pyrotechnic article manufacturers and suppliers in writing procedures, reports and technical documentation.
• Assist regulators, certification bodies and compliance engineers in interpreting test results and specifications.
• Provide consistent terms for training materials, instruction booklets and implementation guidance (reproduction of the terms/definitions for educational use is permitted under ISO conditions).

Who should use it

• Automotive safety engineers and passive safety system designers
• Test laboratories and quality assurance teams
• Component and module manufacturers (airbag modules, pretensioners, igniters, actuators)
• Regulatory and certification authorities

Related standards

ISO 14451 is a multi-part series; Part 1 (terminology) supports Parts 2–10 (test methods, labelling, and requirements/categorization for micro gas generators, airbag gas generators, modules, pretensioners, igniters, actuators and semi‑finished products).

Keywords: ISO 14451-1, pyrotechnic articles, vehicles, terminology, test methods, net explosive mass, fire test, environmental conditioning.