ASTM E2217-2012 Standard Practice for Design and Construction of Aerospace Cleanrooms and Contamination Controlled Areas《航空航天清洁舱和污染控制区的设计和建造的标准实施规程》.pdf
《ASTM E2217-2012 Standard Practice for Design and Construction of Aerospace Cleanrooms and Contamination Controlled Areas《航空航天清洁舱和污染控制区的设计和建造的标准实施规程》.pdf》由会员分享,可在线阅读,更多相关《ASTM E2217-2012 Standard Practice for Design and Construction of Aerospace Cleanrooms and Contamination Controlled Areas《航空航天清洁舱和污染控制区的设计和建造的标准实施规程》.pdf(14页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: E2217 12Standard Practice forDesign and Construction of Aerospace Cleanrooms andContamination Controlled Areas1This standard is issued under the fixed designation E2217; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,
2、the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 The purpose of this practice is to provide design andconstruction guidelines for contamination controlled
3、facilitiesused in the assembly and integration of aerospace hardware.The guidelines herein are intended to ensure that the facilities,when used properly, will meet the cleanliness requirements ofaerospace hardware and processes. The objective is to limitcontamination due to the deposition of particu
4、late and molecu-lar contaminants on flight hardware surfaces.1.2 One cleanliness classification of a facility is the airborneparticle concentrations in accordance with ISO 14644-1 and14644-2. Airborne particle concentrations in accordance withFED-STD-209E are included for reference. This simple clas
5、-sification is inadequate to describe a facility that will supportthe assembly and integration of spacecraft. The extendedduration of hardware exposure during fabrication and testing,the sensitivity of the hardware to hydrocarbons and othermolecular contaminants, and the changing requirements during
6、assembly and integration must be considered in addition to theairborne particle concentrations.1.3 The guidelines specified herein are intended to providefacilities that will effectively restrict contaminants from enter-ing the facility, limit contamination generated by and withinthe facility, and c
7、ontinuously remove airborne contaminantsgenerated during normal operations. Some items of supporthardware, such as lifting equipment, stands, and shoe cleaners,are addressed since these items are often purchased andinstalled with the facility and may require accommodation inthe design of the facilit
8、y.1.4 Active filtration of molecular contaminants (such ashydrocarbons, silicones, and other chemicals) is discussed.Such active filtration of molecular contaminants may berequired for the processing of highly sensitive optical devices,especially infrared and cryogenic sensors. Control of micro-biol
9、ogical contamination is not included although HEPA (HighEfficiency Particulate Air) filtration will provide some controlof airborne bacteria, spores, and other viable contaminants thatare typically carried on particles of sizes 0.3 m and larger.Control of radioactive contamination and accommodation
10、ofvery hazardous materials such as propellants, strong acids orcaustics, or carcinogens are not addressed.1.5 No facility will compensate for excessive contaminationgenerated inside the facility. In addition to an effective facilitydesign, the user must also institute a routine maintenanceprogram (s
11、ee Practice E2042) for the facility, and personneland operational disciplines that limit the transfer of contami-nants through entry doors and contaminant generation insidethe facility.1.6 This practice only addresses guidelines for contamina-tion control in facility design. It must be implemented i
12、ncompliance with all mandatory government and regulatorybuilding and safety codes. References to related cleanroomstandards and U.S. building codes and standards may be foundin IEST-RP-CC012.1.7 The values stated in SI units are to be regarded asstandard. No other units of measurement are included i
13、n thisstandard.1.7.1 The values given in parentheses are provided forinformation only and are not considered standard.1.8 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-pria
14、te safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2E595 Test Method for Total Mass Loss and CollectedVolatile Condensable Materials from Outgassing in aVacuum EnvironmentE1216 Practice for Sampling for Par
15、ticulate Contaminationby Tape LiftE1234 Practice for Handling, Transporting, and InstallingNonvolatile Residue (NVR) Sample Plates Used in Envi-ronmentally Controlled Areas for Spacecraft1This practice is under the jurisdiction of ASTM Committee E21 on SpaceSimulation and Applications of Space Techn
16、ology and is the direct responsibility ofSubcommittee E21.05 on Contamination.Current edition approved April 1, 2012. Published May 2012. Originallyapproved in 2002. Last previous edition approved in 2007 as E2217 - 02 (2007).DOI: 10.1520/E2217-12.2For referenced ASTM standards, visit the ASTM websi
17、te, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United State
18、s.E1235 Test Method for Gravimetric Determination of Non-volatile Residue (NVR) in Environmentally ControlledAreas for SpacecraftE1548 Practice for Preparation ofAerospace ContaminationControl PlansE2042 Practice for Cleaning and Maintaining ControlledAreas and Clean RoomsE2088 Practice for Selectin
19、g, Preparing, Exposing, andAnalyzing Witness Surfaces for Measuring Particle Depo-sition in Cleanrooms and Associated Controlled Environ-mentsF24 Test Method for Measuring and Counting ParticulateContamination on SurfacesF25 Test Method for Sizing and Counting Airborne Particu-late Contamination in
20、Cleanrooms and Other Dust-Controlled AreasF50 Practice for Continuous Sizing and Counting of Air-borne Particles in Dust-Controlled Areas and Clean RoomsUsing Instruments Capable of Detecting Single Sub-Micrometre and Larger Particles2.2 ISO Standards:3ISO 14644-1 Cleanrooms and Associated Controlle
21、d Envi-ronments Part 1: Classification of Air CleanlinessISO 14644-2 Cleanrooms and Associated Controlled Envi-ronments Part 2: Specifications for Testing and Monitor-ing to Prove Continued Compliance with ISO 14644-1ISO 14644-3 Cleanrooms and Associated Controlled Envi-ronments Part 3: Test Methods
22、ISO 14644-4 Cleanrooms and Associated Controlled Envi-ronments Part 4: Design, Construction and Start-up2.3 Institute of Environmental Science and TechnologyStandards:IEST-RP-CC001 HEPA and ULPA Filters4IEST-RP-CC006 Testing Cleanrooms4IEST-RP-CC007 Testing ULPA Filters4IEST-RP-CC012 Considerations
23、in Cleanroom Design4IEST-RP-CC022 Electrostatic Charge in Cleanrooms andOther Controlled Environments4IEST-RP-CC034 HEPA and ULPA Filter Leak Tests4IEST-STD-CC1246 Product Cleanliness Levels and Con-tamination Control Program52.4 U.S Government Standards:FED-STD-209E Airborne Particulate Cleanliness
24、 Classes inCleanrooms and Clean Zones62.5 Other Publications:Procedural Standards for Certified Testing of Cleanrooms,National Environmental Balancing Bureau (NEBB)73. Terminology3.1 Definitions:3.1.1 aerosol, na gaseous suspension of fine solid orliquid particles.3.1.2 airfilters:3.1.2.1 HEPA (High
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