ISO 2434:1973
(Main)Compressed non-breathing air for use in aircraft
Compressed non-breathing air for use in aircraft
Specifies the pressure and characteristics of air, compressed in oil-lubricated equipment. Is not intended to cover air for breathing purposes or air for use in oxygen systems. The compressed air supply pressure shall ensure charging of aircraft systems up to 343 bar at 20 °C. The air shall contain not more than a total of O,OO5 mg of oil vapour and particulate matter per cubic decimetre of air at 15 °C and 1 O13 mbar.
Air comprimé, non destiné à la respiration, pour utilisation à bord des aéronefs
General Information
- Status
- Published
- Publication Date
- 30-Nov-1973
- Technical Committee
- ISO/TC 20/SC 10 - Aerospace fluid systems and components
- Drafting Committee
- ISO/TC 20/SC 10/WG 8 - Hydraulic fluids and fluid contamination control
- Current Stage
- 9060 - Close of review
- Completion Date
- 04-Jun-2031
Overview
ISO 2434:1973 specifies the requirements for compressed non-breathing air used in aircraft systems. Developed by the International Organization for Standardization (ISO), this standard focuses on the pressure and purity characteristics of air compressed using oil-lubricated equipment. It is important to note that ISO 2434:1973 is not intended for air used for breathing or in oxygen systems, but rather for industrial and operational applications within aircraft.
Key Topics
- Compressed Air Quality: ISO 2434 sets strict limits for oil vapor and particulate contamination in compressed air, allowing no more than 0.005 mg per cubic decimetre of air at 15°C and 1,013 mbar.
- Water Content: The standard ensures that the water content in the air does not exceed 0.02 mg per cubic decimetre at the specified conditions.
- Pressure Specifications: Compressed air supply must achieve pressures sufficient to charge aircraft systems up to 343 bar at 20°C.
- Filtration: Any particulate matter present in the air must be capable of passing through a filter with a nominal rating of 10 microns.
- Scope Limitation: The document clearly excludes air intended for breathing and those used in oxygen systems to prevent safety risks.
Applications
ISO 2434:1973 is essential in the aerospace industry for the following applications:
- Aircraft System Activation: The standard ensures that compressed air used in various aircraft subsystems-such as hydraulic, pneumatic, and control systems-meets specific quality and pressure requirements.
- Ground Support Equipment: Maintenance and ground crews rely on iso-compliant non-breathing air to safely charge and test aircraft systems, ensuring reliability and adherence to international standards.
- Component Testing: Manufacturers and suppliers test valves, actuators, and other equipment using compressed air that complies with this standard to guarantee product compatibility and performance.
- Oil-Lubricated Compressors: By specifying acceptance criteria for air purity and moisture, the standard helps organizations select and maintain suitable oil-lubricated compression equipment for their fleets.
Related Standards
Organizations referencing ISO 2434:1973 for compressed air quality in aircraft may also consider the following standards for comprehensive compliance and operational safety:
- ISO 8573 - Compressed air quality standards for a wide range of industrial and pneumatic system applications.
- ISO 2041 - Terminology and general definitions for pneumatic systems used in aviation.
- Airworthiness Directives from aviation authorities concerning the use of non-breathing air in aircraft systems.
- EN 12021 - European standards specifying requirements for breathing air, for reference and to avoid cross-application.
Practical Value
Adhering to ISO 2434:1973 provides the following practical benefits:
- Enhanced Equipment Reliability: Minimizes risk of contamination-induced failures or corrosion within high-pressure aircraft systems.
- Operational Safety: Ensures that only air with controlled particle, oil, and moisture content is used, reducing potential risks during critical aircraft operations.
- International Compatibility: Facilitates cross-border maintenance, manufacturing, and operations by providing a universally accepted standard for compressed non-breathing air in aviation.
- Regulatory Compliance: Helps aviation organizations demonstrate compliance with ISO and related regulatory requirements during safety audits and inspections.
ISO 2434:1973 thus serves as a critical guideline for the safe and efficient use of compressed non-breathing air across modern aircraft systems.
Buy Documents
ISO 2434:1973 - Compressed non-breathing air for use in aircraft
ISO 2434:1973 - Compressed non-breathing air for use in aircraft/1/1973
ISO 2434:1973 - Air comprimé, non destiné a la respiration, pour utilisation a bord des aéronefs
ISO 2434:1973 - Air comprimé, non destiné a la respiration, pour utilisation a bord des aéronefs
ISO 2434:1973 - Air comprimé, non destiné à la respiration, pour utilisation à bord des aéronefs/1/1973
ISO 2434:1973 - Air comprimé, non destiné à la respiration, pour utilisation à bord des aéronefs/1/1973
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Frequently Asked Questions
ISO 2434:1973 is a standard published by the International Organization for Standardization (ISO). Its full title is "Compressed non-breathing air for use in aircraft". This standard covers: Specifies the pressure and characteristics of air, compressed in oil-lubricated equipment. Is not intended to cover air for breathing purposes or air for use in oxygen systems. The compressed air supply pressure shall ensure charging of aircraft systems up to 343 bar at 20 °C. The air shall contain not more than a total of O,OO5 mg of oil vapour and particulate matter per cubic decimetre of air at 15 °C and 1 O13 mbar.
Specifies the pressure and characteristics of air, compressed in oil-lubricated equipment. Is not intended to cover air for breathing purposes or air for use in oxygen systems. The compressed air supply pressure shall ensure charging of aircraft systems up to 343 bar at 20 °C. The air shall contain not more than a total of O,OO5 mg of oil vapour and particulate matter per cubic decimetre of air at 15 °C and 1 O13 mbar.
ISO 2434:1973 is classified under the following ICS (International Classification for Standards) categories: 49.100 - Ground service and maintenance equipment. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 2434:1973 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
INTERNATIONAL STANDARD
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION l MEXAYHAPOflHA5l OPTAHW3ALU-W l-lo CTAHAAPTM3A~MM.ORGANISATION INTERNATIONALE DE NORMALISATION
Compressed non-breathing air for use in aircraft
First edition - 1973-12-01
UDC 629.13 : 621.602
Ref. No. IS0 2434-1973 (E)
Descriptors : aircraft, compressed air, materials specifications, pressure.
Price based on 1 page
FOREWORD
IS0 (the International Organization for Standardization) is a worldwide federation
of national standards institutes (IS0 Member Bodies). The work of developing
International Standards is carried out through IS0 Technical Committees. Every
Member Body interested in a subject for which a Technical Committee has been set
up has the right to be represented on that Committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work.
Draft International Standards adopted by the Technical Committees are circulated
to the Member Bodies for approval before their acceptance as International
Standards by the IS0 Council.
International Standard IS0 2434 was drawn up by Technical Committee
ISO/TC 20, Aircraft and space vehicles, and circulated to the Member Bodies in
June 1971.
It has been approved by the Member Bodies of the following countries :
Austria Italy Thailand
Belgium Japan Turkey
Brazil Netherlands United Kingdom
Canada New Zealand U.S.A.
Czechoslovakia Romania U.S.S.R.
Egypt, Arab Rep. of South Africa, Rep. of
India
...
INTERNATIONAL STANDARD
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION l MEXAYHAPOflHA5l OPTAHW3ALU-W l-lo CTAHAAPTM3A~MM.ORGANISATION INTERNATIONALE DE NORMALISATION
Compressed non-breathing air for use in aircraft
First edition - 1973-12-01
UDC 629.13 : 621.602
Ref. No. IS0 2434-1973 (E)
Descriptors : aircraft, compressed air, materials specifications, pressure.
Price based on 1 page
FOREWORD
IS0 (the International Organization for Standardization) is a worldwide federation
of national standards institutes (IS0 Member Bodies). The work of developing
International Standards is carried out through IS0 Technical Committees. Every
Member Body interested in a subject for which a Technical Committee has been set
up has the right to be represented on that Committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work.
Draft International Standards adopted by the Technical Committees are circulated
to the Member Bodies for approval before their acceptance as International
Standards by the IS0 Council.
International Standard IS0 2434 was drawn up by Technical Committee
ISO/TC 20, Aircraft and space vehicles, and circulated to the Member Bodies in
June 1971.
It has been approved by the Member Bodies of the following countries :
Austria Italy Thailand
Belgium Japan Turkey
Brazil Netherlands United Kingdom
Canada New Zealand U.S.A.
Czechoslovakia Romania U.S.S.R.
Egypt, Arab Rep. of South Africa, Rep. of
India
...
NORMEINTERNATIONALE
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION l ME’X;lYHAPOAHAIi OPrAHM3AUMfl Il0 CTAHlIAPTM3AUMM -ORGANISATION INTERNATIONALE DE NORMALISATION
Air comprimé, non destiné à la respiration, pour utilisation
à bord des aéronefs
Première édition - 1973-12-01
Réf. No : ISO 2434-1973 (F)
CDU 629.13: 621.602
Descripteurs : aéronef, air cornpri mé, spécification de matière, pression.
Prix basé sur 1 page
AVANT-PROPOS
ISO (Organisation Internationale de Normalisation) est une fédération mondiale
d’organismes nationaux de normalisation (Comités Membres KO). L’élaboration de
Normes Internationales est confiée aux Comités Techniques ISO. Chaque Comité
Membre intéressé par une étude a le droit de faire partie du Comité Technique
correspondant. Les organisations internationales, gouvernementales et non
gouvernementales, en I iaison avec I’ISO, participent également aux travaux.
Les Projets de Normes Internationales adoptés par les Comités Techniques sont
soumis aux Comités Membres pour approbation, avant leur acceptation comme
Normes Internationales par le Conseil de I’ISO.
La Norme Internationale ISO 2434 a été établie par le Comité Technique
lSO/TC 20, Aéronautique et espace, et soumise aux Comités Membres en juin 1971.
Elle a 6th approuvée par les Comités Membres des pays suivants :
Afrique du Sud, Rép. d’
l nde Tchécoslovaquie
Autriche Thaïlande
Italie
Belgique Japon Turquie
Bresil . Nouvelle-Zélande U.R.S.S.
Canada Pays-Bas U.S.A.
Egypte, Rép. .arabe d’ Roumanie
Espagne Royaume-Uni
Le Comité Membre du
...
NORMEINTERNATIONALE
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION l ME’X;lYHAPOAHAIi OPrAHM3AUMfl Il0 CTAHlIAPTM3AUMM -ORGANISATION INTERNATIONALE DE NORMALISATION
Air comprimé, non destiné à la respiration, pour utilisation
à bord des aéronefs
Première édition - 1973-12-01
Réf. No : ISO 2434-1973 (F)
CDU 629.13: 621.602
Descripteurs : aéronef, air cornpri mé, spécification de matière, pression.
Prix basé sur 1 page
AVANT-PROPOS
ISO (Organisation Internationale de Normalisation) est une fédération mondiale
d’organismes nationaux de normalisation (Comités Membres KO). L’élaboration de
Normes Internationales est confiée aux Comités Techniques ISO. Chaque Comité
Membre intéressé par une étude a le droit de faire partie du Comité Technique
correspondant. Les organisations internationales, gouvernementales et non
gouvernementales, en I iaison avec I’ISO, participent également aux travaux.
Les Projets de Normes Internationales adoptés par les Comités Techniques sont
soumis aux Comités Membres pour approbation, avant leur acceptation comme
Normes Internationales par le Conseil de I’ISO.
La Norme Internationale ISO 2434 a été établie par le Comité Technique
lSO/TC 20, Aéronautique et espace, et soumise aux Comités Membres en juin 1971.
Elle a 6th approuvée par les Comités Membres des pays suivants :
Afrique du Sud, Rép. d’
l nde Tchécoslovaquie
Autriche Thaïlande
Italie
Belgique Japon Turquie
Bresil . Nouvelle-Zélande U.R.S.S.
Canada Pays-Bas U.S.A.
Egypte, Rép. .arabe d’ Roumanie
Espagne Royaume-Uni
Le Comité Membre du
...
NORMEINTERNATIONALE
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION l ME’X;lYHAPOAHAIi OPrAHM3AUMfl Il0 CTAHlIAPTM3AUMM -ORGANISATION INTERNATIONALE DE NORMALISATION
Air comprimé, non destiné à la respiration, pour utilisation
à bord des aéronefs
Première édition - 1973-12-01
Réf. No : ISO 2434-1973 (F)
CDU 629.13: 621.602
Descripteurs : aéronef, air cornpri mé, spécification de matière, pression.
Prix basé sur 1 page
AVANT-PROPOS
ISO (Organisation Internationale de Normalisation) est une fédération mondiale
d’organismes nationaux de normalisation (Comités Membres KO). L’élaboration de
Normes Internationales est confiée aux Comités Techniques ISO. Chaque Comité
Membre intéressé par une étude a le droit de faire partie du Comité Technique
correspondant. Les organisations internationales, gouvernementales et non
gouvernementales, en I iaison avec I’ISO, participent également aux travaux.
Les Projets de Normes Internationales adoptés par les Comités Techniques sont
soumis aux Comités Membres pour approbation, avant leur acceptation comme
Normes Internationales par le Conseil de I’ISO.
La Norme Internationale ISO 2434 a été établie par le Comité Technique
lSO/TC 20, Aéronautique et espace, et soumise aux Comités Membres en juin 1971.
Elle a 6th approuvée par les Comités Membres des pays suivants :
Afrique du Sud, Rép. d’
l nde Tchécoslovaquie
Autriche Thaïlande
Italie
Belgique Japon Turquie
Bresil . Nouvelle-Zélande U.R.S.S.
Canada Pays-Bas U.S.A.
Egypte, Rép. .arabe d’ Roumanie
Espagne Royaume-Uni
Le Comité Membre du
...
NORMEINTERNATIONALE
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION l ME’X;lYHAPOAHAIi OPrAHM3AUMfl Il0 CTAHlIAPTM3AUMM -ORGANISATION INTERNATIONALE DE NORMALISATION
Air comprimé, non destiné à la respiration, pour utilisation
à bord des aéronefs
Première édition - 1973-12-01
Réf. No : ISO 2434-1973 (F)
CDU 629.13: 621.602
Descripteurs : aéronef, air cornpri mé, spécification de matière, pression.
Prix basé sur 1 page
AVANT-PROPOS
ISO (Organisation Internationale de Normalisation) est une fédération mondiale
d’organismes nationaux de normalisation (Comités Membres KO). L’élaboration de
Normes Internationales est confiée aux Comités Techniques ISO. Chaque Comité
Membre intéressé par une étude a le droit de faire partie du Comité Technique
correspondant. Les organisations internationales, gouvernementales et non
gouvernementales, en I iaison avec I’ISO, participent également aux travaux.
Les Projets de Normes Internationales adoptés par les Comités Techniques sont
soumis aux Comités Membres pour approbation, avant leur acceptation comme
Normes Internationales par le Conseil de I’ISO.
La Norme Internationale ISO 2434 a été établie par le Comité Technique
lSO/TC 20, Aéronautique et espace, et soumise aux Comités Membres en juin 1971.
Elle a 6th approuvée par les Comités Membres des pays suivants :
Afrique du Sud, Rép. d’
l nde Tchécoslovaquie
Autriche Thaïlande
Italie
Belgique Japon Turquie
Bresil . Nouvelle-Zélande U.R.S.S.
Canada Pays-Bas U.S.A.
Egypte, Rép. .arabe d’ Roumanie
Espagne Royaume-Uni
Le Comité Membre du
...
























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