1、Designation:D3815/D3815M05(Reapproved 2011)Standard Practice forAccelerated Weathering of Pressure-Sensitive Tapes byOpen-Flame Carbon-Arc Exposure Apparatus1This standard is issued under the fixed designation D3815/D3815M;the number immediately following the designation indicates theyear of origina
2、l adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.S
3、cope1.1 This practice describes one environment for the expo-sure of pressure-sensitive tapes to a laboratory acceleratedweathering environment.1.2 This practice describes sample preparation and thelaboratory-accelerated weathering environment to which itshall be exposed.It does not specify the leng
4、th of time of theexposure nor what tests shall be performed on the materialfollowing the exposure.NOTE1Practice D6551/D6551M describes xenon-arc exposures oftapes.1.3 The values stated in either SI or inch-pound units are tobe regarded separately as standard.The values stated in eachsystem may not b
5、e exact equivalents;therefore,each systemmust be used independently without combining values in anyway.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 and heal
6、th practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2A666 Specification for Annealed or Cold-Worked AusteniticStainless Steel Sheet,Strip,Plate,and Flat BarD3330/D3330M Test Method for PeelAdhesion of Pressure-Sensitive TapeD3
7、715/D3715M Practice for Quality Assurance of Pressure-Sensitive TapesD6551/D6551M Practice for Accelerated Weathering ofPressure-Sensitive Tapes by Xenon-Arc Exposure Appa-ratusG147 Practice for Conditioning and Handling of Nonmetal-lic Materials for Natural and Artificial Weathering TestsG151 Pract
8、ice for Exposing Nonmetallic Materials inAccel-erated Test Devices that Use Laboratory Light SourcesG152 Practice for Operating Open Flame Carbon Arc LightApparatus for Exposure of Nonmetallic Materials3.Summary of Practice3.1 The pressure-sensitive tape is exposed in accordancewith the conditions p
9、rovided by Practices G151 and G152.Exposure time is determined by applicable material specifica-tion or by mutual agreement by all interested parties.4.Significance and Use4.1 This practice does not necessarily provide direct simu-lation of natural weathering exposure.4.2 Results from use of this pr
10、actice shall not be representedas being equivalent to those of any natural weathering test untila satisfactory degree of correlation has been established for thematerial in question.4.3 Variations in results are possible when the operatingconditions vary within the accepted limits for the instrument
11、specified in Practices G151 and G152.5.Apparatus5.1 Exposure Apparatus,conforming to the requirementsdefined in Practices G151 and G152 for exposure using theopen-flame carbon arc with daylight filters.5.2 Panels,for holding or supporting the specimens ap-proximately 75 by 225 mm 3 by 9 in.and rigid
12、 enough toresist deforming during use.5.2.1 The material shall be Type 302 or 304 stainless steel inaccordance with Specification A666 having a bright annealedfinish.The surface roughness height shall be 50 6 5 mm 2.06 0.1-in.arithmetical average deviation from the mean line.5.2.2 Other dimensions o
13、r materials and finishes are accept-able when defined by the subsequent test standard or commod-ity specification.1This practice is under the jurisdiction of ASTM Committee D10 on Packagingand is the direct responsibility of Subcommittee D10.14 on Tape and Labels.Current edition approved Aug.1,2011.
14、Published November 2011.Originallyapproved in 1979.Last previous edition approved in 2005 as D3815/D3815M 05.DOI:10.1520/D3815_D3815M-05R11.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume in
15、formation,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 5.2.3 A panel or frame of the dimensions required by theexposure apparatus may be used to support the specimen panel
16、when it is more convenient to do so,as long as the light andwater paths are not interrupted or shortened by doing so.5.3 Rubber-Covered Roller,at least as wide as the specimenwith any diameter and rubber hardness.6.Sampling6.1 Sampling shall be in accordance with the requirementsof the applicable material or commodity specification.6.2 Lacking the previously mentioned specification,sam-pling shall be in accordance with the physical property methodapplicable to the testing to follow the exposure.
