ISO 8625-3:2018
(Main)Aerospace - Fluid systems - Vocabulary - Part 3: General terms and definitions relating to temperature
Aerospace - Fluid systems - Vocabulary - Part 3: General terms and definitions relating to temperature
ISO 8625-3:2018 defines general terms relating to temperature in fluid systems used in aerospace construction.
Aéronautique et espace — Systèmes de fluides — Vocabulaire — Partie 3: Termes généraux et définitions relatifs aux températures
General Information
Relations
Overview
ISO 8625-3:2018 is an international standard published by the International Organization for Standardization (ISO) that focuses on the vocabulary and general terms related to temperature in fluid systems used in aerospace construction. This part of the ISO 8625 series provides standardized definitions and descriptions essential for professionals working with aerospace fluid systems to ensure clarity and consistency in communication and documentation.
The standard defines key temperature-related terms necessary for the design, operation, and maintenance of fluid systems in aerospace applications, covering everything from ambient conditions to extreme temperature tolerances.
Key Topics
- General Temperature Terms: Definitions for various temperature measures such as ambient temperature, fluid temperature, equipment temperature, and inlet and outlet temperatures.
- Critical Temperature Limits: Includes terms like autoignition temperature, flash point, fire point, and pour point which are crucial for safety and fluid handling.
- Operational Temperature Ranges: Covers normal fluid operating temperature, maximum fluid temperature, temperature range of equipment, and fluid temperature range ensuring reliable aerospace system performance.
- Extreme and Survival Conditions: Terms such as extreme operating temperature and survival temperature describe conditions that a system or component can endure without permanent degradation.
- Hydraulic System Classifications: Defines temperature-based classification for hydraulic systems used in military aircraft (Type I, II, and III), based on maximum fluid temperature ranges.
Applications
ISO 8625-3:2018 is invaluable for aerospace engineers, designers, maintenance personnel, and manufacturers involved in fluid systems where accurate understanding of temperature conditions is critical. Its practical applications include:
- Design Specification: Providing a clear vocabulary for specifying operating and environmental temperature conditions for fluid systems in aircraft and spacecraft.
- Safety Compliance: Establishing terminology for ignition and fire-related temperature thresholds, aiding in hazard analysis and prevention.
- Performance Monitoring: Standardizing temperature-related terms helps in setting consistent parameters for system monitoring and diagnostics.
- Component Testing and Validation: Ensures testing processes are aligned with universally accepted definitions to verify temperature resilience and system stability.
- Maintenance and Troubleshooting: Facilitates precise communication about temperature-related issues during maintenance and operational checks.
Related Standards
Professionals interested in fluid systems within aerospace should also consider related standards for a comprehensive understanding:
- ISO 8625 Series: Other parts of the ISO 8625 series cover additional vocabulary and specific fluid system components.
- AS5440: A military standard referenced in ISO 8625-3 for classifying hydraulic systems by maximum allowable fluid temperature, particularly relevant for aerospace fluid systems.
- IEC Electropedia and ISO Online Browsing Platform: These terminological databases maintain updated standards vocabulary applicable to electrical and fluid system components.
- ISO/IEC Directives: Provides guidance on the development, maintenance, and application of international standards, assuring consistent quality across documentation.
ISO 8625-3:2018 serves as a critical reference for establishing universal terminology related to temperature in aerospace fluid systems. By harmonizing definitions, the standard facilitates improved design, operation, safety, and global communication across aerospace industries, supporting efficient management of temperature-sensitive hydraulic and fluid systems.
Frequently Asked Questions
ISO 8625-3:2018 is a standard published by the International Organization for Standardization (ISO). Its full title is "Aerospace - Fluid systems - Vocabulary - Part 3: General terms and definitions relating to temperature". This standard covers: ISO 8625-3:2018 defines general terms relating to temperature in fluid systems used in aerospace construction.
ISO 8625-3:2018 defines general terms relating to temperature in fluid systems used in aerospace construction.
ISO 8625-3:2018 is classified under the following ICS (International Classification for Standards) categories: 01.040.49 - Aircraft and space vehicle engineering (Vocabularies); 49.080 - Aerospace fluid systems and components. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 8625-3:2018 has the following relationships with other standards: It is inter standard links to ISO 8625-3:1991. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase ISO 8625-3:2018 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of ISO standards.
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 8625-3
Second edition
2018-03
Aerospace — Fluid systems —
Vocabulary —
Part 3:
General terms and definitions relating
to temperature
Aéronautique et espace — Systèmes de fluides — Vocabulaire —
Partie 3: Termes généraux et définitions relatifs aux températures
Reference number
©
ISO 2018
© ISO 2018
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ii © ISO 2018 – All rights reserved
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
Foreword
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electrotechnical standardization.
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described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
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This document was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles,
Subcommittee SC 10, Aerospace fluid systems and components.
This second edition cancels and replaces the first edition (ISO 8625-3:1991), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— Clause 2 has been added, moving the “Terms and definitions” to Clause 3;
— Clause 3 has been technically revised and editorially reworked;
— the example for a definition at the beginning of Clause 3 has been deleted;
— the definitions in Clause 3 have been renumbered accordingly;
— the definitions of all terms have been revised, except for
...
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