ASTM E1548-03
(Practice)Standard Practice for Preparation of Aerospace Contamination Control Plans
Standard Practice for Preparation of Aerospace Contamination Control Plans
ABSTRACT
This practice is intended to assist in the preparation of formal plans for contamination control, especially of aerospace critical surfaces. The extent of detail and level of cleanliness required can vary with the particular application and type of hardware being built, but all aspects of contamination control must be included in a final plan. Therefore, each of the following elements must be considered for inclusion in a contamination control plan (CCP): cleanliness requirements, implementation plans, environmental controls, personnel and operational controls.
SCOPE
1.1 This practice is intended to assist in the preparation of formal plans for contamination control, especially of aerospace critical surfaces. Requirements may be established at the systems level, either by the customer or the systems integrator, or at the subsystem level. Subsystem requirements may be imposed by the responsible subsystem supplier or they may be flowed down from the systems organization (4.7). The extent of detail and level of cleanliness required can vary with the particular application and type of hardware being built, but all aspects of contamination control must be included in a final plan. Therefore, each of the following elements must be considered for inclusion in a contamination control plan (CCP):
1.1.1 Cleanliness requirementsfor deliverable hardware addressing particulate, molecular, or biological contaminants or combination thereof. Specify contamination limits and any budget allocations.
1.1.2 Implementation plansto achieve, verify, and maintain the specified cleanliness requirements. Specify material and process controls, cleaning techniques, verification tests, protection and prevention plans, transportation controls, and corrective action for discrepancies.
1.1.3 Environmental controlsincluding clean facilities to be used, facility maintenance, and monitoring schedule.
1.1.4 Personnel and operational controlsincluding operating procedures, restrictions, training, motivation, and organizational responsibilities including the organization or individual for implementation and verification of the CCP.
General Information
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Standards Content (Sample)
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Designation:E1548–03
Standard Practice for
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Preparation of Aerospace Contamination Control Plans
This standard is issued under the fixed designation E 1548; 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 Vacuum Environment
E 1216 Practice for Sampling for Surface Particulate Con-
1.1 This practice is intended to assist in the preparation of
tamination by Tape Lift
formalplansforcontaminationcontrol,especiallyofaerospace
E 1235 TestMethodforGravimetricDeterminationofNon-
critical surfaces. Requirements may be established at the
volatile Residue (NVR) in Environmentally Controlled
systems level, either by the customer or the systems integrator,
Areas for Spacecraft
or at the subsystem level. Subsystem requirements may be
E 1549 Specification for ESD Controlled Garments Re-
imposed by the responsible subsystem supplier or they may be
quired in Cleanrooms and Controlled Environments for
flowed down from the systems organization (4.7). The extent
Spacecraft for Non-Hazardous and Hazardous Operations
of detail and level of cleanliness required can vary with the
E 1559 Test Method for Contamination Outgassing Charac-
particular application and type of hardware being built, but all
teristics of Spacecraft Materials
aspects of contamination control must be included in a final
E 2042 Practice for Cleaning and Maintaining Controlled
plan. Therefore, each of the following elements must be
Areas and Clean Rooms
considered for inclusion in a contamination control plan
E 2217 Practice for Design and Construction of Aerospace
(CCP):
Cleanrooms and Contamination Controlled Areas
1.1.1 Cleanliness requirements for deliverable hardware
F50 Practice for Continuous Sizing and Counting of Air-
addressing particulate, molecular, or biological contaminants
borne Particles in Dust-ControlledAreas and Clean Rooms
or combination thereof. Specify contamination limits and any
Using Instruments Capable of Detecting Single Sub-
budget allocations.
Micrometre and Larger Particles
1.1.2 Implementation plans to achieve, verify, and maintain
F 303 Practices for Sampling Aerospace Fluids from Com-
the specified cleanliness requirements. Specify material and
ponents
process controls, cleaning techniques, verification tests, pro-
F 312 Test Methods for Microscopical Sizing and Counting
tection and prevention plans, transportation controls, and
Particles from Aerospace Fluids on Membrane Filters
corrective action for discrepancies.
2.2 Government Standards:
1.1.3 Environmental controls including clean facilities to
FED-STD-209E AirborneParticulateCleanlinessClassesin
be used, facility maintenance, and monitoring schedule.
3,4
Cleanrooms and Clean Zones
1.1.4 Personnel and operational controls including operat-
USAF Tech Order 00-25-203 Contamination Control of
ing procedures, restrictions, training, motivation, and organi-
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Aerospace Facilities, U.S. Air Force
zational responsibilities including the organization or indi-
2.3 International Standards:
vidual for implementation and verification of the CCP.
ISO 14644-1 Cleanrooms and Associated Controlled Envi-
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2. Referenced Documents ronments, Classification of Air Cleanliness
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ISO 14644-2 Cleanrooms and Associated Controlled
2.1 ASTM Standards:
Environments—Specifications for testing and monitoring
E 595 Test Method for Total Mass Loss and Collected
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to prove continued compliance with ISO 14644-1
Volatile Condensable Materials from Outgassing in a
ISO 15388 SpaceSystems—ContaminationandCleanliness
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Control
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This practice is under the jurisdiction of ASTM Committee E21 on Space
Simulation andApplications of Space Technology and is the direct responsibility of
Subcommittee E21.05 on Contamination.
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Current edition approved May 10, 2003. Published June 2003. Originally AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
approved in 1993. Last previous edition approved in 1998 as F 1548 – 93 (1998). Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or FED-STD-209 has been superceded by ISO 14644-1 and -2. It may continue to
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM be used if mutually agreed to by customer and supplier.
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Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036.
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