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    ASTM F942-2002(2013) Standard Guide for Selection of Test Methods for Interlayer Materials for Aerospace Transparent Enclosures《航空航天透明外壳用的夹层材料试验方法选择的标准指南》.pdf

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    ASTM F942-2002(2013) Standard Guide for Selection of Test Methods for Interlayer Materials for Aerospace Transparent Enclosures《航空航天透明外壳用的夹层材料试验方法选择的标准指南》.pdf

    1、Designation: F942 02 (Reapproved 2013)Standard Guide forSelection of Test Methods for Interlayer Materials forAerospace Transparent Enclosures1This standard is issued under the fixed designation F942; the number immediately following the designation indicates the year of originaladoption or, in the

    2、case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This guide summarizes the standard test methods avail-able for determining physical and mech

    3、anical characteristics ofinterlayer materials used in multi-ply aerospace transparentenclosures.1.2 Interlayer materials are used to laminate glass-to-glass,glass-to-plastic, and plastic-to-plastic. Interlayer materials arebasically transparent adhesives with high-quality optical prop-erties. They c

    4、an also serve as an energy absorbing medium, afail-safe membrane to contain cockpit pressure and to prevententry of impact debris; a strain insulator to accommodatedifferent thermal expansion rates of members being laminatedand as an adherent to prevent spalling of inner surface plymaterial fragment

    5、s. The relative importance of an interlayercharacteristic will be a function of the prime use it serves in itsparticular application.1.3 This guide, as a summary of various methods in Section2, is intended to facilitate the selection of tests that can beapplied to interlayer materials.1.4 The test m

    6、ethods listed are for use in determining basicdesign characteristics and in assuring lot-to-lot uniformity ofthe materials being tested except as noted in 3.3.1.5 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user

    7、 of this standard to establish appro-priate safety and heal practices and determine the applicabilityof regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Guarded-

    8、Hot-Plate ApparatusD149 Test Method for Dielectric Breakdown Voltage andDielectric Strength of Solid Electrical Insulating Materialsat Commercial Power FrequenciesD412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD542 Test Method for Index of Refraction of TransparentOrgani

    9、c PlasticsD570 Test Method for Water Absorption of PlasticsD696 Test Method for Coefficient of Linear Thermal Expan-sion of Plastics Between 30C and 30C with a VitreousSilica DilatometerD792 Test Methods for Density and Specific Gravity (Rela-tive Density) of Plastics by DisplacementD1003 Test Metho

    10、d for Haze and Luminous Transmittanceof Transparent PlasticsD1004 Test Method for Tear Resistance (Graves Tear) ofPlastic Film and SheetingD1045 Test Methods for Sampling and Testing PlasticizersUsed in PlasticsD1204 Test Method for Linear Dimensional Changes ofNonrigid Thermoplastic Sheeting or Fil

    11、m at ElevatedTemperatureD1824 Test Method for Apparent Viscosity of Plastisols andOrganosols at Low Shear RatesD2240 Test Method for Rubber PropertyDurometer Hard-nessD2766 Test Method for Specific Heat of Liquids and SolidsD2857 Practice for Dilute Solution Viscosity of PolymersD3167 Test Method fo

    12、r Floating Roller Peel Resistance ofAdhesivesD3465 Test Method for Purity of Monomeric Plasticizers byGas ChromatographyD3835 Test Method for Determination of Properties ofPolymeric Materials by Means of a Capillary RheometerE1640 Test Method for Assignment of the Glass TransitionTemperature By Dyna

    13、mic Mechanical AnalysisF520 Test Method for Environmental Resistance of Aero-space Transparencies to Artificially Induced ExposuresF521 Test Methods for Bond Integrity of Transparent Lami-nates1This guide is under the jurisdiction ofASTM Committee F07 on Aerospace andAircraft and is the direct respo

    14、nsibility of Subcommittee F07.08 on TransparentEnclosures and Materials.Current edition approved Dec. 1, 2013. Published December 2013. Originallyapproved in 1985. Last previous edition approved in 2008 as F942 08. DOI:10.1520/F0942-02R13.2For referenced ASTM standards, visit the ASTM website, www.a

    15、stm.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 States1F1164 Te

    16、st Method for Evaluation of Transparent PlasticsExposed to Accelerated Weathering Combined with Bi-axial StressF1316 Test Method for Measuring the Transmissivity ofTransparent PartsF1362 Test Method for Shear Strength and Shear Modulusof Aerospace Glazing Interlayer Materials3. Significance and Use3

    17、.1 This guide is intended for use by material suppliers,aircraft transparent enclosure fabricators, airframemanufacturers, government agencies, and others that maybecome involved in the testing of transparent interlayer mate-rials. These test methods provide data on both individualinterlayer materia

    18、ls and material combinations commonly usedin the fabrication of aerospace transparent enclosures andprovide a means of evaluating the performance of one inter-layer material against another.3.2 Primary characteristics and their long-term stability arecritical to the performance of an interlayer mate

    19、rial. Basic testsdefine the as-manufactured material characteristics of theinterlayer material. Ageing procedures provide for representa-tive exposure to environments that may induce changes inmaterial characteristics. Tests performed before and afterageing exposure provide a means of estimating the

    20、 potentialuseable life-span of an interlayer material or to compare thedurability of one interlayer material with another.3.3 When employing these test methods for the comparisonof interlayer materials after exposure to selected environmentalconditions, the user shall be aware that many factors infl

    21、uenc-ing degradation due to weathering vary from one location andexposure period to another location and exposure period. Fordirect weathering comparisons, the interlayer materials to becompared shall be subjected to the exposure and have the testsperformed at the same time. It is emphasized that th

    22、e testvalues obtained under these simultaneously applied conditionsare for comparative use and their use as design characteristicsshall be made with caution.3.4 The test methods listed include those considered criticalto the performance of aircraft transparent enclosures. The useris advised to use t

    23、he latest revision of any test method.4. Keywords4.1 aerospace; interlayer materials; laminates; transparentenclosuresASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly

    24、 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 subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, ei

    25、ther reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may atten

    26、d. 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 standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. In

    27、dividual 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). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).F942 02 (2013)2


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