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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.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
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 requirements for deliverable hardware addressing particulate, molecular, or biological contaminants or combination thereof. Specify contamination limits and any budget allocations.
1.1.2 Implementation plans to 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 controls including clean facilities to be used, facility maintenance, and monitoring schedule.
1.1.4 Personnel and operational controls including operating procedures, restrictions, training, motivation, and organizational responsibilities including the organization or individual for implementation and verification of the CCP.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
IEST StandardsIEST-STD-CC1246D Product Cleanliness Levels and Contamination Control Program Available from Institute of Environmental Sciences and Technology (IEST), Arlington Place One, 2340 S. Arlington Heights Rd., Suite 100, Arlington Heights, IL 60005-4516, http://www.iest.org.
E595 Test Method for Total Mass Loss and Collected Volatile Condensable Materials from Outgassing in a Vacuum Environment
E1216 Practice for Sampling for Particulate Contamination by Tape Lift
E1235 Test Method for Gravimetric Determination of Nonvolatile Residue (NVR) in Environmentally Controlled Areas for Spacecraft
E1549 Specification for ESD Controlled Garments Required in Cleanrooms and Controlled Environments for Spacecraft for Non-Hazardous and Hazardous Operations
E1559 Test Method for Contamination Outgassing Characteristics of Spacecraft Materials
E2042 Practice for Cleaning and Maintaining Controlled Areas and Clean Rooms
E2217 Practice for Design and Construction of Aerospace Cleanrooms and Contamination Controlled Areas
F50 Practice for Continuous Sizing and Counting of Airborne Particles in Dust-Controlled Areas and Clean Rooms Using Instruments Capable of Detecting Single Sub-Micrometre and Larger Particles
F303 Practices for Sampling for Particles in Aerospace Fluids and Components
F312 Test Methods for Microscopical Sizing and Counting Particles from Aerospace Fluids on Membrane Filters
Government StandardsUSAFTechOrder00-25-2 Contamination Control of Aerospace Facilities, U.S. Air Force
International StandardsISO15388 Space Systems--Contamination and Cleanliness Control
ICS Number Code 49.020 (Aircraft and space vehicles in general)
UNSPSC Code 25200000(Aerospace systems and components and equipment)
ASTM E1548-09, Standard Practice for Preparation of Aerospace Contamination Control Plans, ASTM International, West Conshohocken, PA, 2009, www.astm.orgBack to Top