1、Designation: D 6551/D 6551M 05Standard Practice forAccelerated Weathering of Pressure-Sensitive Tapes byXenon-Arc Exposure Apparatus1This standard is issued under the fixed designation D 6551/D 6551M; the number immediately following the designation indicates theyear of original adoption or, in the
2、case of revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice describes one environment for the expo-sure of pressure-sensitive tape, u
3、sed primarily for packaging, toa laboratory accelerated weathering environment.1.2 This practice describes sample preparation and theaccelerated environment to which it shall be exposed. It doesnot specify the length of time of the exposure nor what testsshall be performed on the material following
4、the exposure.1.3 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-con
5、formancewith the 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 and health practices and determine the applica-bility of regulatory limitations pr
6、ior to use.2. Referenced Documents2.1 ASTM Standards:2A 666 Specification for Annealed or Cold-Worked Austen-itic Steel Sheet, Strip, Plate, and Flat BarD 3330/D 3330M Test Method for Peel Adhesion ofPressure-Sensitive TapeD 3715/D 3715M Practice for Quality Assurance ofPressure-Sensitive TapesD 510
7、5 Practice for Performing Accelerated OutdoorWeathering of Pressure-Sensitive Tapes Using Concen-trated Natural SunlightG 151 Practice for Exposing Nonmetallic Materials in Ac-celerated Test Devices that Use Laboratory Light SourcesG 155 Practice for Operating Xenon-Arc Light Apparatusfor Exposure o
8、f Nonmetallic Materials3. Summary of Practice3.1 The pressure-sensitive tape is exposed for the timespecified in accordance with the conditions provided in Prac-tice G 155. Following this exposure the specimen is ready fora prescribed examination of physical characteristics by otherstandards as dete
9、rmined by the applicable material specifica-tion or other document.4. Significance and Use4.1 This practice describes one method for acceleratedweathering of pressure-sensitive tapes used primarily forpackaging. It is not intended for evaluation the weatheringcharacteristics of pressure-sensitive ta
10、pes used in long-termoutdoor exposure conditions (see Practice D 5105).4.2 This practice does not necessarily provide direct simu-lation of natural exposure.4.3 Results from use of this practice shall not be representedas being equivalent to those of any natural weathering test untila satisfactory d
11、egree of correlation has been established for thematerial in question.4.4 Variation in results are possible when operating condi-tions vary within accepted limits for the instrument specified inPractices G 151 and G 155.5. Apparatus5.1 Exposure Apparatus, a xenon-arc weathering apparatuswith dayligh
12、t filters conforming to all parameters as describedin Practices G 151 and G 155.5.2 Panels3,4, for holding or supporting specimens approxi-mately 75 by 225 mm 3 by 9 in. and rigid enough to resistdeformation during use.5.2.1 The material shall be Type 302 or 304 stainless steel inaccordance with Spe
13、cification A 666 having a bright annealed1This practice is under the jurisdiction of ASTM Committee D10 on Packagingand is the direct responsibility of Subcommittee D10.14 on Tapes and Labels.Current edition approved Dec. 1, 2005. Published December 2005. Originallyapproved in 2000. Last previous ed
14、ition approved in 2000 as D 6551 00.2For 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.3The sole source of suppl
15、y of the apparatus known to the committee at this timeis Chemsultants International, 9349 Hamilton Dr., Mentor, OH 440611118. If youare aware of alternative suppliers, please provide this information to ASTMInternational Headquarters. Your comments will receive careful consideration at ameeting of t
16、he responsible technical committee,1which you may attend.4The sole source of supply of the apparatus known to the committee at this timeis Panel Lab Products, 26200 First Street, Cleveland, OH 94145. If you are awareof alternative suppliers, please provide this information to ASTM InternationalHeadq
17、uarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee,1which you may attend.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.finish. The surface roughness height shall be 50 6 5 m
18、m 2.06 0.1 -in. arithmetical average deviation from the mean line.5.2.2 Other dimensions or materials and finishes are accept-able when defined by the subsequent test standard or commod-ity specification.5.2.3 A panel or frame of the dimensions required by theexposure apparatus may be used to suppor
19、t the specimen panelwhen 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.3,46. Sampling6.1 Sampling shall be in accordance with the requir
20、ementsof 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 following exposure.6.3 When no other sampling requirement is applicable,sampling shall be in acc
21、ordance with Practice D 3715/D 3715M.7. Test Specimen7.1 Unless otherwise specified, prepare and expose at leastthree replicate specimens of each tape to be tested. The testspecimen dimensions shall be in accordance with the standardto be used subsequent to this exposure or the commodityspecificatio
22、n.7.2 Unwind and discard at least three, but no more than six,outer wraps of tape from the sample roll before takingspecimens for testing.7.3 Remove specimens from a freely rotating roll at the rateof 500 to 700 mm 20 to 30 in./s. Where width or other factorscausing a high adherence to backing make
23、it impossible toremove the specimen at the prescribed rate, remove it at a rateas close to 500 mm 20 in./s as possible.8. Procedure8.1 Apply specimens as directed by the standard to be usedsubsequent to this exposure. If none, apply the specimen,centered lengthwise, to the panel using the rubber cov
24、eredroller (5.3), holding the specimen so that the roller causes thefirst contact of the specimen with the panel.8.1.1 When the test, such as in Test Methods D 3330/D 3330M, is to follow this exposure, it is customary to applythe tape to the prescribed panel in accordance with TestMethods D 3330/D 3
25、330M preparatory to the exposure and topeel it without reapplication following exposure.8.1.2 Usually, it is assumed that the backside of thepressure-sensitive tape receives the energy. Any deviationsfrom this would be expressed by the commodity specification.8.2 Set up xenon-arc apparatus with the
26、daylight filtersystem and operate in accordance with Practices G 151 andG 155. Unless otherwise mutually agreed on or specified, setmachine irradiance level of 0.35 W/(m2nm) at 340 nmmaintained at a tolerance level of 60.02 W/(m2nm) at 340 nm.The equivalent broad band irradiance and tolerance levels
27、 are41.5 6 2.5 W/m2at 300400 nm and 365 6 20 W/m2at300800 nm.8.2.1 Unless otherwise mutually agreed on or specified,expose specimens in the filtered xenon arc apparatus inaccordance with Practice G 151 and Cycle 1 of Practice G 155using continuous light and a test cycle consisting of 102 minlight on
28、ly followed by 18 min of light with water sprayed onthe front surface of the specimens. The uninsulated black paneltemperature shall be controlled at equilibrium at 63C at thecontrol point. The maximum operational fluctuation allowed is63C. In apparatus that has the means of humidification, therelat
29、ive humidity is set at 50 % at the control point with amaximum operational fluctuation of 65 %. The chamber airtemperature shall be controlled at 44C at the control pointwith a maximum operational fluctuation of 62C. Conductexposures for the time specified in the relevant productstandard or specific
30、ation. If no other exposure time is specified,expose the specimens for 2000 h.8.3 Follow the instructions of the material specification, orother document, relative to observations, physical tests, or bothto be performed on the specimen following exposure. Deter-mine the average of the result for phy
31、sical property testsperformed on the specimens.9. Report9.1 In reporting data, including observations, obtained byany examination following this exposure, make reference tothis practice by designation. Provide the following informa-tion:9.1.1 Any deviation from this practice and any item refer-enced
32、 in the Report section of Practice G 151, and9.1.2 The information required by the applicable materialspecification or other document.10. Keywords10.1 accelerated weathering; pressure-sensitive tape; xenon-arc exposure apparatusD 6551/D 6551M 052ASTM International takes no position respecting the va
33、lidity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is su
34、bject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headqu
35、arters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This stand
36、ard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D 6551/D 6551M 053
