ISO 8625-1-2018 PDF

Full title and description

St ISO 8625-1-2018 — Aerospace — Fluid systems — Vocabulary — Part 1: General terms and definitions related to pressure. This part of ISO 8625 provides standardized terminology for pressure-related concepts used in aerospace fluid (hydraulic and pneumatic) systems to ensure clear technical communication across design, manufacturing and maintenance activities.

Abstract

ISO 8625-1:2018 defines general terms and definitions relating to pressure applicable to fluid systems in aerospace construction. It supplies concise, standardized vocabulary for use by engineers, technical authors and regulatory/certification documents.

General information

• Status: Published
• Publication date: March 2018
• Publisher: International Organization for Standardization (ISO)
• ICS / categories: 49.080; 01.040.49
• Edition / version: Edition 2 (2018)
• Number of pages: 7

Key bibliographic and lifecycle details as published by ISO (edition and page count shown above).

Scope

This document specifies general terms and definitions related to pressure for use in aerospace fluid systems (hydraulic and pneumatic). It is intended to be used where consistent, unambiguous pressure terminology is required in design documentation, component specifications, test procedures and technical communications across the aerospace supply chain.

Key topics and requirements

• Standardized definitions of pressure-related terms (for example: absolute pressure, gauge pressure, differential pressure and reference pressures).
• Clarification of symbols and basic units commonly used for pressure in aerospace fluid systems.
• Definitions aimed at consistent interpretation in hydraulic and pneumatic contexts (system/working pressure, burst/maximum allowable pressure concepts).
• Cross-references to other parts of the ISO 8625 vocabulary series where flow- and component-related terms are defined.
• Short, normative entries suitable for incorporation into technical specifications, drawings and test procedures.

Typical use and users

Used by aerospace fluid-system engineers, component designers, test laboratories, technical authors, certification and regulatory specialists, procurement teams and suppliers of hydraulic/pneumatic equipment. Typical applications include creation of specifications, test reports, maintenance documentation and international contracts where consistent pressure terminology reduces ambiguity.

Related standards

ISO 8625 is a multi-part vocabulary series; a closely related document is ISO 8625-2:2018 (terms relating to flow). ISO/TC 20/SC 10 is the responsible technical committee for the series.

Keywords

aerospace; fluid systems; vocabulary; pressure; hydraulic; pneumatic; terminology; ISO 8625; definitions

FAQ

Q: What is this standard?

A: ISO 8625-1:2018 is Part 1 of the ISO 8625 vocabulary series, giving general terms and definitions related to pressure used in aerospace fluid systems.

Q: What does it cover?

A: It covers short, authoritative definitions for pressure concepts (absolute, gauge, differential, reference pressures and related terms) to promote consistent use in design, testing and documentation of aerospace hydraulic and pneumatic systems.

Q: Who typically uses it?

A: Aerospace engineers, test laboratories, technical writers, certification bodies, suppliers and procurement/specification authors who need consistent pressure terminology across international documentation and contracts.

Q: Is it current or superseded?

A: ISO 8625-1:2018 is the current published edition (replacing the 1993 edition); the ISO record indicates the 2018 edition as published and confirmed in the ISO lifecycle.

Q: Is it part of a series?

A: Yes — ISO 8625 is a multi-part vocabulary standard for aerospace fluid systems. Part 2 (ISO 8625-2:2018) covers general terms and definitions relating to flow; further parts address other topic subsets as maintained by ISO/TC 20/SC 10.

Q: What are the key keywords?

A: aerospace, fluid systems, pressure, vocabulary, hydraulic, pneumatic, terminology, definitions.