1、I NOTICE OF I I VALIDATION I VALIDATION NOTICE 1 20 March 1989 for ASTM D 1547-81 June 26,1981 ASTM D 1547-81,adopted on 29 March 1984,has been reviewed and determined to be current.Custodians:Navy-YD Army-MR Review Activities:Navy-AS DLA-GS Military Coordinating Activity:Navy-YD h FSC 9330 DISTRIBU
2、TION STATEHEDST A,Approved for public release;distributlofs i s un1 i m i ted._ _-_ l_l-THIS DOCUMENT CONTAINS PAGES.-*U.S.6WEWENT PRINTIffi OFFICE1989 640-033112094 _-._-F NOTICE:This standard has either been superseded and replaced by a new version or discontinued.Contact ASTM International(www.as
3、tm.org)for the latest information.ASTM 91547-81.29 March 1984 SUPERSEDING-.-ASTM D1547-75(79)19 September 1980 ACCEPTANCE NOTICE This non-government document was adopted on 29 March 1984 and is approved f o r use by t h e DoD.required by e x i s t i n g regulations.Single Stock Point,Naval Publicati
4、ons and Forms Center,Philadelphia,PA 19120,f o r issue t o DoD a c t i v i t i e s only.obtain copies from ASTM,1916 Race Street,Philadelphia,PA The indicated industry group has furnished the clearance Copies of the document are stocked by DoD Contractors and industry groups must 19103,T i t l e of
5、Document:Standard Specific a t ion.f o r Extruded Acrylic P l a s t i c Sheet Date of Specific Issue Adopted:June 26,1981 Releasing Industry Group:American Society for Testing and Materials._ NOTICE:When rdfTirmation,amendment,revision,o r cancellation of t h i s standard is i n i t i a l l y Propos
6、ed,the industry group responsible f o r t h i s standard s h a l l inform the military coordinating a c t i v i t y of the proposed Cus tod ians:.-change and request participation.Military Coordinating Activity:Army-MR Navy-YD Review activities:havy-AS D U -GS Navy-YD Project No.9330-BO98 T H I S DO
7、CUMENT CONTAINS!PAGES.ASTM D15q7 AL 0759510 0022216 1,_ _,7 Designation;D 1547-81 AMERICAN SOCIETY FOR TESTING AND MATERIALS 1916 Race St.,Philadelphia,Pa.19103 Reprinfed from the Annual Book of ASTM Standards,Copyright ASTM If not listed in the current combined index,will appear in the next edition
8、.Standard Specification for EXTRUDED ACRYLIC PLASTIC SHEET T h i s standard i s issued under the h e d designation D 1547;the number immediately following the designation indicates the year of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates th
9、e year of last reapproval.A superscript epsilon(E)indicates an editorial change since the last revision or reapproval.7it.s spec9cation has been approved for ilse by agencies of the Department of Defense and for Iisting i n the DoD Index of Specifcations and Standards 1.scope 1.1 This specification
10、covers two types of extruded acrylic plastic sheet.NOTE I-Sheet covered by this specification is usualy produced i n nominal tliicknesses from 1.3 mm(0.05 i n.)to 6.4 mm(0.25 in.).1.2 The values stated in SI units are to be regarded as the standard.2.ApplicableDocuments 2.1 ASTMStandards:D 374 Tesfs
11、 for Thickness of Solid Electrical D 618 Conditioning Plastics and Electrical D 788 Specification for Methacrylate Mold-D 1898 Recommended Practice for Sam-D 3892 Practice for Packagingflacking of 2.2 Military Standard MIL-STD-105 Sampling Procedures and Insulation Insulating Materials for Testing2
12、ing and Extrusion Compounds3 pling of Plastics2 Plastics2 Tables for Inspection by Attributes4 3.Classification 3.1 Type I,Regular-Manufactured from Grade 6 methacrylate molding compounds in accordance with Specification D 788.3.2 Type II,Heat Resstant-Manufactured from Grade 8 methacrylate molding
13、com-pounds in accordance with SpecificationD 788.4.Physical Requirements 4.1 Thickness-The thickness of the sheet shall be as agreed upon between the purchaser and manufacturer.4.1.1 Thickness Tolerance-The thickness tolerance,applicable at any point more than 25.4 mm(1 in.)from the edge of the shee
14、t,shall be w i t h i n f 5 I of the nominal thickness.1 4.2 Width and Length-The width and length of the sheet shall be as agreed upon between the purchaser and the manufacturer.The width and length of the sheet shall be within f12.7,-0 mm(+%,-0 in.)of the nominal width and length.4.3 Dimensional Ch
15、anges During Heating-The dimensional change during heating deter-mined by the procedure of 6.3 shall not exceed 8%in the direction of extrusion and 5%in the transverse direction.4.4 Thermal Stability-There shall be no ev-idence of bubbles after the heat treatment re-quired for dimensional change.4.5
16、 Edge Finish-The extruded edges shall be free from cracks or chipping.Sawed edges and ends shall have no cracks;the extent of permissible chipping shall be as agreed upon between the purchaser and the selier.4.6 Defects-There shall be no more than one major defect in any 1.1 m2(12 ft2)of sheet area and no more than one minor defect in any 0.09 m2(1 A )of sheet area.There shall be no defects covering more than 650 mm2(1 in?)in area.The sheet shall exhibit no crazing.The limits of other imperfecti
