ASTM_E_1549_-_E_1549M_-_13.pdf

Designation:E1549/E1549M13Standard Specification forESD Controlled Garments Required in Cleanrooms andControlled Environments for Spacecraft for Non-Hazardousand Hazardous Operations1This standard is issued under the fixed designation E1549/E1549M;the number immediately following the designation indicates the yearof 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.Scope1.1 This document specifies special items of clothing(cleanroom garments)designed to protect aerospace productsfrom electrostatic discharge and from contaminants released bypersonnel and garments.Special clothing includes low lintingcoveralls,footwear,and head covers.1.2 The function of cleanroom garments is to contain thecontaminants generated by people and to minimize contami-nants from the garments.1.3 Two types of fabrics can be selected for the garments.Both types are inherently static-dissipative materials to preventelectrical discharges that can damage sensitive hardware orinitiate explosions in the presence of flammable vapors.Thematerial specified for“hazardous environments”is flameresistant and provides additional protection to the wearer.Selection of garment design and fabric should be based on theusers needs with respect to functional and environmentalrequirements.1.4 Additional,background information can be found inSD-TR-91-26 and IEST-RP-CC003.3.1.5 This standard is intended to be in compliance with theASTM policy on Fire Standards.2Flammability tests specifiedin this standard should be used to measure and describe theproperties of fabrics in response to heat and flame undercontrolled laboratory conditions and should not be used todescribe or appraise the fabrics under actual fire conditions.However,results of the tests may be used as elements of a firerisk assessment which takes into account all of the factorswhich are pertinent to an assessment of the fire hazard ofoperations in controlled environment areas.1.6 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.7 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-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:3D123 Terminology Relating to TextilesD204 Test Methods for Sewing ThreadsD1683 Test Method for Failure in Sewn Seams of WovenApparel FabricsD1894 Test Method for Static and Kinetic Coefficients ofFriction of Plastic Film and SheetingD2257 Test Method for Extractable Matter in TextilesD5034 Test Method for Breaking Strength and Elongation ofTextile Fabrics(Grab Test)D6193 Practice for Stitches and SeamsD737 Test Method for Air Permeability of Textile FabricsE96/E96M Test Methods for Water Vapor Transmission ofMaterialsE176 Terminology of Fire StandardsE535 Practice for Preparation of Fire-Test-Response Stan-dardsE1560 Test Method for Gravimetric Determination of Non-volatile Residue From Cleanroom WipersF51 Test Method for Sizing and Counting Particulate Con-taminant In and On Clean Room GarmentsF739 Test Method for Permeation of Liquids and Gasesthrough Protective Clothing Materials under Conditions ofContinuous Contact1This specification is under the jurisdiction of ASTM Committee E21 on SpaceSimulation and Applications of Space Technology and is the direct responsibility ofSubcommittee E21.05 on Contamination.Current edition approved May 15,2013.Published July 2013.Originallyapproved in 1993.Last previous edition approved in 2006 as E1549 06.DOI:10.1520/E1549_E1549M-13.2ASTM Fire Standards and Related Technical Material;7th Edition,June 2007,ISBN13:978-0-8031-5684-5,available on request from ASTM Headquarters,100Barr Harbor Dr.,PO Box C700,West Conshohocken,PA 194282959.3For referenced ASTM standards,visit the ASTM website,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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 F1506 Performance Specification for Flame Resistant andArc Rated Textile Materials for Wearing Apparel for Useby Electrical Workers Exposed to Momentary ElectricArcand Related Thermal Hazards2.2 U.S.Federal Standards:4CFR Title 16 Part 1610 Standard for the Flammability ofClothing TextilesA-A 50195 Thread,AramidFED-STD-209E Airborne Particulate Cleanliness Classes inCleanrooms and Clean Zones2.3 U.S.Department of Defense:MIL