ASTM F3227/F3227M-22
(Specification)Standard Specification for Environmental Systems in Aircraft
Standard Specification for Environmental Systems in Aircraft
SCOPE
1.1 This specification covers international standards for the environmental system aspects of airworthiness and design for “small” aircraft.
1.2 The applicant for a design approval must seek the individual guidance of their respective CAA body concerning the use of this specification as part of a certification plan. For information on which CAA regulatory bodies have accepted this specification (in whole or in part) as a means of compliance to their Small Aircraft Airworthiness regulations (hereinafter referred to as “the Rules”), refer to the ASTM F44 webpage (www.ASTM.org/COMMITTEE/F44.htm), which includes CAA website links. Annex A1 maps the Means of Compliance described in this specification to EASA CS-23, amendment 5, or later, and FAA 14 CFR Part 23, amendment 64, or later.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
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Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:F3227/F3227M −22
Standard Specification for
1
Environmental Systems in Aircraft
ThisstandardisissuedunderthefixeddesignationF3227/F3227M;thenumberimmediatelyfollowingthedesignationindicatestheyear
of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope for use is indicated. In all cases later document revisions are
acceptableifshowntobeequivalenttothelistedrevision,orif
1.1 This specification covers international standards for the
otherwise formally accepted by the governing civil aviation
environmental system aspects of airworthiness and design for
authority; earlier revisions are not acceptable.
“small” aircraft.
2
2.2 ASTM Standards:
1.2 The applicant for a design approval must seek the
F3060Terminology for Aircraft
individual guidance of their respective CAA body concerning
F3061/F3061MSpecification for Systems and Equipment in
the use of this specification as part of a certification plan. For
Aircraft
information on which CAA regulatory bodies have accepted
F3083/F3083MSpecification for Emergency Conditions,
this specification (in whole or in part) as a means of compli-
Occupant Safety and Accommodations
ance to their SmallAircraftAirworthiness regulations (herein-
F3117/F3117MSpecification for Crew Interface in Aircraft
after referred to as “the Rules”), refer to the ASTM F44
F3230Practice for Safety Assessment of Systems and
webpage (www.ASTM.org/COMMITTEE/F44.htm), which
Equipment in Small Aircraft
includes CAA website links. Annex A1 maps the Means of
F3233/F3233MSpecification for Flight and Navigation In-
Compliance described in this specification to EASA CS-23,
strumentation in Aircraft
amendment 5, or later, and FAA 14 CFR Part 23, amendment
3
2.3 EASA Standard:
64, or later.
CS-23Normal,Utility,AerobaticandCommuterAeroplanes
1.3 The values stated in either SI units or inch-pound units
4
2.4 FAA Standard:
are to be regarded separately as standard. The values stated in
14 CFR Part 23Airworthiness Standards: Normal Category
each system are not necessarily exact equivalents; therefore, to
Airplanes
ensure conformance with the standard, each system shall be
5
2.5 SAE Standard:
used independently of the other, and values from the two
SAE AIR825/4, Rev AChemical Oxygen Systems
systems shall not be combined.
1.4 This standard does not purport to address all of the
3. Terminology
safety concerns, if any, associated with its use. It is the
3.1 Terminology specific to this specification is provided
responsibility of the user of this standard to establish appro-
below. For general terminology, refer to Terminology F3060.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
3.2 Definitions of Terms Specific to This Standard:
1.5 This international standard was developed in accor-
3.2.1 aircraft type code, n—an aircraft type code (ATC) is
dance with internationally recognized principles on standard-
defined by considering both the technical considerations re-
ization established in the Decision on Principles for the
garding the design of the aircraft and the airworthiness level
Development of International Standards, Guides and Recom-
established based upon risk-based criteria; the method of
mendations issued by the World Trade Organization Technical
defining an ATC applicable to this specification is defined in
Barriers to Trade (TBT) Committee.
Specification F3061/F3061M.
2. Referenced Documents
2
2.1 Following is a list of external standards referenced For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
throughout this specification; the earliest revision acceptable
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
1 3
ThisspecificationisunderthejurisdictionofASTMCommitteeF44onGeneral Available from European Union Aviation Safety Agency (EASA), Konrad-
Aviation Aircraft and is the direct responsibility of Subcommittee F44.50 on Adenauer-Ufer 3, D-50668 Cologne, Germany, https://www.easa.europa.eu.
4
Systems and Equipment. Available from Federal Aviation Administration (FAA), 800 Independence
Current edition approved April 1, 2022. Published April 2022. Originally Ave., SW, Washington, DC 20591, http://www.faa.gov.
5
approved in 2017. Last previous edition approved in 2021 as F3227/F3227M–21a. AvailablefromSAEInternational(SAE),400CommonwealthDr.,Warrendale,
DOI: 10.1520/F3227_F3227M-22. PA 15096, http://www.s
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F3227/F3227M − 21a F3227/F3227M − 22
Standard Specification for
1
Environmental Systems in Aircraft
This standard is issued under the fixed designation F3227/F3227M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers international standards for the environmental system aspects of airworthiness and design for “small”
aircraft.
1.2 The applicant for a design approval must seek the individual guidance of their respective CAA body concerning the use of
this specification as part of a certification plan. For information on which CAA regulatory bodies have accepted this specification
(in whole or in part) as a means of compliance to their Small Aircraft Airworthiness regulations (hereinafter referred to as “the
Rules”), refer to the ASTM F44 webpage (www.ASTM.org/COMMITTEE/F44.htm), which includes CAA website links. Annex
A1 maps the Means of Compliance described in this specification to EASA CS-23, amendment 5, or later, and FAA 14 CFR Part
23, amendment 64, or later.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used
independently of the other, and values from the two systems shall not be combined.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 Following is a list of external standards referenced throughout this specification; the earliest revision acceptable for use is
indicated. In all cases later document revisions are acceptable if shown to be equivalent to the listed revision, or if otherwise
formally accepted by the governing civil aviation authority; earlier revisions are not acceptable.
2
2.2 ASTM Standards:
F3060 Terminology for Aircraft
F3061/F3061M Specification for Systems and Equipment in Aircraft
F3083/F3083M Specification for Emergency Conditions, Occupant Safety and Accommodations
1
This specification is under the jurisdiction of ASTM Committee F44 on General Aviation Aircraft and is the direct responsibility of Subcommittee F44.50 on Systems
and Equipment.
Current edition approved Nov. 15, 2021April 1, 2022. Published December 2021April 2022. Originally approved in 2017. Last previous edition approved in 2021 as
F3227/F3227M–21.–21a. DOI: 10.1520/F3227_F3227M-21A.10.1520/F3227_F3227M-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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F3227/F3227M − 22
F3117/F3117M Specification for Crew Interface in Aircraft
F3230 Practice for Safety Assessment of Systems and Equipment in Small Aircraft
F3233/F3233M Specification for Flight and Navigation Instrumentation in Aircraft
3
2.3 EASA Standard:
CS-23 Normal, Utility, Aerobatic and Commuter Aeroplanes
4
2.4 FAA Standard:
14 CFR Part 23 Airworthiness Standards: Normal Category Airplanes
5
2.5 SAE Standard:
SAE AIR825/4, Rev A Chemical Oxygen Systems
3. Terminology
3.1 Terminology specific to this specification is provided below. For general terminology, refer to Terminology F3060.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 aircraft type code, n—an aircraft type code (ATC) is defined by considering both the technical considerations regarding the
design of the aircraft and the airworthiness level established based upon risk-based criteria; the method of defining an AT
...
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