ASTM_D_5485_-_11.pdf

Designation:D548511Standard Test Method forDetermining the Corrosive Effect of Combustion ProductsUsing the Cone Corrosimeter1This standard is issued under the fixed designation D5485;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.Scope*1.1 This fire-test-response standard measures the corrosiveeffect by loss of metal from the combustion products ofmaterials,components,or products.1.2 This test method provides corrosion results of productand material specimens limited to a maximum size of 100 by100 mm in area and 50 mm thick.1.3 The results of this test method have not been investi-gated with respect to correlation to actual fires.1.4 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.(See SI10)1.5 This standard measures and describes the response ofmaterials,products,or assemblies to heat and flame undercontrolled conditions,but does not by itself incorporate allfactors required for fire hazard or fire risk assessment of thematerials,products,or assemblies under actual fire conditions.1.5.1 Additional information regarding the targets,the testconditions,and test limitations are provided in the annex.1.6 Fire testing is inherently hazardous.Adequate safe-guards for personnel and property shall be employed inconducting these tests.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.For specific hazardstatements,see Section 7.2.Referenced Documents2.1 ASTM Standards:2D618 Practice for Conditioning Plastics for TestingD1711 Terminology Relating to Electrical InsulationD6113 Test Method for Using a Cone Calorimeter to Deter-mine Fire-Test-Response Characteristics of Insulating Ma-terials Contained in Electrical or Optical Fiber CablesE176 Terminology of Fire StandardsE1354 Test Method for Heat and Visible Smoke ReleaseRates for Materials and Products Using an Oxygen Con-sumption CalorimeterIEEE/ASTM SI-10 Standard for Use of the InternationalSystem of Units(SI):The Modern Metric System2.2 Other Document:OSHA 191.1450 Occupational Exposure to Hazard Chemi-cals in Laboratories33.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this test method,referto Terminologies E176 and D1711.3.2 Definitions of Terms Specific to This Standard:3.2.1 cone corrosimeter,nequipment used to determinecorrosion in this test method.3.2.2 corrosion-by-metal-loss,nloss of metal of a targetexpressed as reduction of thickness of the target metal.3.2.3 exposure chamber,nenclosure in which a target isexposed to combustion products.3.2.4 heating flux,nincident power per unit area that isimposed externally from the heater on the specimen.3.2.4.1 DiscussionThe specimen,once ignited,is alsoheated by its own flame.3.2.5 sustained flaming,nexistence of flame on or overthe surface of the test specimen for periods of 4 s or more.3.2.5.1 DiscussionFlaming ignition of less than 4 s isidentified as transitory flaming or flashing.3.2.6 target,ndetector of known electrical resistancewhich can lose metal through a process of corrosion when it isexposed to combustion products.3.3 Symbols Specific to This Standard:1This test method is under the jurisdiction of ASTM Committee D09 onElectrical and Electronic Insulating Materials and is the direct responsibility ofSubcommittee D09.21 on Fire Performance Standards.Current edition approved April 1,2011.Published April 2011.Originallyapproved in 1994.Last previous edition approved in 2010 as D548510.DOI:10.1520/D5485-11.2For 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.3Available from Occupational Safety and Health Administration(OSHA)/U.S.Departmnet of Labor,200 Constitution Ave.,NW,Washington,DC 20210,http:/www.osha.gov.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.3.1 A0initial corrosion instrument reading.3.3.2 A1corrosion instrument reading at the end of 1-hexposure to combustion products.3.3.3 A24corrosion instrument reading at the end of 24 hin the environmental chamber.3.3.4 Ccorrosion of a target,nm.3.3.5 C1corrosion at the end of 1-h exposure to combus-tion products,nm.3.3.6 C24corrosion at the end of 24 h in the environmentalchamber,nm.3.3.7 mspecimen mass,g.3.3.8 mffinal specimen mass,g.3.3.9 miinitial specimen mass,g.3.3.10 m70average 70%