ASTM_D_3698_-_04_2020.pdf

Designation:D369804(Reapproved 2020)Standard Practice forSolvent Vapor Degreasing Operations1This standard is issued under the fixed designation D3698;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,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 This practice recommends work practices for conven-tional vapor degreasing operations utilizing any solvent orsolvent blend that has been categorized as nonflammable.1.2 This practice is not intended for use in vapor degreasingoperations utilizing flammable(low flash point)solvents or invapor degreasing operations utilizing enclosed(sealed,air-tight)equipment.For these non-applicable operations,usersshould consult the solvent or equipment supplier for additionalinformation.1.3 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D2110 Test Method for pH of Water Extractions of Haloge-nated Organic Solvents and Their AdmixturesD2942 Test Method for Total Acid Acceptance of Haloge-nated Organic Solvents(Nonreflux Methods)D4276 Practice for Confined Area EntryD4579 Practice for Handling an Acid Degreaser or Still2.2 Government Documents:340 CFR Part 63.460-469 U.S.EPA,National EmissionStandards for Halogenated Solvent Cleaning29 CFR Part 1910 U.S.Department of Labor,OccupationalSafety and Health Standards2.3 Other Documents:Threshold Limit Values for Chemical Substances and Physi-cal Agents,ACGIH Industrial Ventilation,ACGIH4NFPA 704 Identification System for Fire Hazards ofMaterials,National Fire Protection Association53.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 emergencyany occurrence that may result in animmediate hazard to health including exposures resulting from,but not limited to,equipment failure,rupture of containers,orfailure to control equipment.3.1.2 hazardous operationany procedure or activity wherea release of the solvent or the decomposition products of thesolvents might be expected to result in a hazard to health.3.1.3 nonflammable solvent(s)as used herein,is a solventor solvent mixture having a NFPA flammability hazard ratingof 1 or lower(as determined by NFPA 704),intended for usein vapor degreasing operations.3.1.4 solvent vapor degreasera solvent and corrosion-resistant tank with a heated solvent reservoir or sump at thebottom,a condensing means near the top,and freeboard abovethe condensing means,in which sufficient heat is introduced toboil the solvent and generate hot solvent vapor.Because the hotvapor is heavier than air,it displaces the air and fills the tankup to the condensing zone.The hot vapor condenses on thecooled condensing means,thus maintaining a fixed vapor leveland creating a thermal balance.1This practice is under the jurisdiction of ASTM Committee D26 on Haloge-nated Organic Solvents and Fire Extinguishing Agents and is the direct responsi-bility of Subcommittee D26.02 on Vapor Degreasing.Current edition approved April 1,2020.Published April 2020.Originallyapproved in 1979.Last previous edition approved in 2015 as D369804(2015).DOI:10.1520/D369804R20.2For 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.3Code of Federal Regulations,available from U.S.Government PublishingOffice(GPO),732 N.Capitol St.,NW,Washington,DC 20401-0001,http:/www.gpo.gov.4Available from American Conference of Governmental Industrial Hygienists(ACGIH),1330 Kemper Meadow Dr.,Cincinnati,OH 45240,http:/www.acgih.org.5Available from National Fire Protection Association(NFPA),1 BatterymarchPark,Quincy,MA 02169-7471,http:/www.nfpa.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Reco