ASTM_D_1930_-_80_scan.pdf

Designation:D 1930-80 4CTb 9009276 0024380 538 AMERICAN SOCIETY FOR TESTING A N D MATERIALS 1916 Race St.,Philadelphia,Pa.19103 Reprinted from the Annual Book of ASTM Standards,Copyright ASTM If not listed in the current combined index,will appear in the next edition.Standard Specification for KRAFT DIELECTRIC TISSUE,CAPACITOR GRADE This standard is issued under the fixed designation D 1Y30;the number immediately following the designation indicates lhe year ororiginal adoption or.in the case of revision.the year of last revision.A number in parentheses indicates the year of last rcapproval 1.scope I.I The specification describes kraft tissues suitable for use as dielectrics in capacitors.The requirements herein are typical and are within the capability of modern manufacturing prac-tice.1.2 The values in inch-pound units where stated are to be regarded as the standard.The metric equivalents of inch-pound units may be approximate.2.Applicable Documents 2.I ASTM Standards:D202 Sampling and Testing Untreated Pa-per Used for Electrical Insulation E 29 Recommended Practice for Indicating Which Places of Figures Are to Be Con-sidered Significant in Specified Limiting Values.:3.Types and Grades 3.1 Three types of tissue for principal uses,as shown in Table I.are covered by this spec-ification.Gradations within a type have devel-oped on the basis of special needs and signifi-cant related tes,as illustrated by Types IB and IC.4.Ordering Information 4.1 Orders for material to this specification shall specify paper,kraft dielectric tissue.thick-ness,width,diameter of rolls,type,and accept-able quality level(AQL),in accordance with this specification.Exompnple-Paper,kraft dielectric tissue,0.30 mil(7.6 pm)by 2911 in.(70.6 mm),rolls 6 in.(I50 mm)in outside diameter on I%-in.(29-mm)inside diam-eter core.Type 2,per ASTM Specification D 1930.S.Materials and Manufacture 5.1 This paper shall be made solely of un-bleached sulfate pulp of coniferous origin.All coloring materials and other additives are pro-hibited.5.2 Very high degrees of physical uniformity and cleanliness are essential to a satisfactory sheet.6.Chemical Requirements 6.1 The chemical properties of this capacitor tissue shall conform to the requirements pre-scribed in Table 2.7.Physical Requirements 7.I The physical properties of this capacitor tissue shall conform to the requirements pre-scribed in Table 3.as well as the apparent density limits prescribed in Table 1.Additional requirements for special applications.and the test methods therefor,shall be as agreed upon by the purchaser and the seller.8.Electrical Requirements 8.1 The electrical properties of this capacitor tissue shall conform to the requirements pre-scribed in Table 4.Additional requirements for special applications,and the test methods therefor,shall be as agreed upon by the pur-chaser and the seller.This specification is under the jurisdiction of ASTM Committee D-Y on Electrical Insulating Material and is the direct responsibility o Subcommittee Dou OX on Insulaiing Papers Current edition approved May 30.19x0 Published Jul)19x0 Originally published as D 1930 61 Last previous edition D IV30 74 Annual Book oJASTM Slandardr.Pan 39 Annual Book o f 4STM Standards.Pan 41 I NOTICE:This standard has either been superseded and replaced by a new version or discontinued.Contact ASTM International(www.astm.org)for the latest information.W 900927b 0024383 474 m D 1930 thickness.and composition,made during a des-ignated period(normally not to exceed I week)on a given machine and identified by a manu-facturers lot number.I I.i.2 A Unit o f Produci is an individual roll(or bobbin)of paper in a lot as cut to meet the customers order.12.Test Method 12.I Determine the properties enumerated in this specification in accordance with Meth-ods D 202,except as provided hereinafter.12.2 Air Resistonce-Determine in accord-ance with Method C of Methods D 202.12.3 Thickness-Determine using Method D of Methods D 202 with these further provisions:12.3.1 The presser foot of the instrument shall be descending at the rate of 45 15 mils(i.i4 f 0.38 mm)/s at the moment of contact.12.3.2 The test specimen shall be a stack of IO sheets for paper under 2.0 mils(Si Fm)nominal thickness.Measure thicker paper as a single sheet.except that 2.0-mil paper may be measured as a IO-sheet stack if mutually agreed upon by the purchaser and the seller.12.4 Apporeni Density-Calculate from the conditioned volume(thickness as determined in 12.3)and dry weight of the specimen.9.Condition of Rolls 9.1 Kraft dielectric capacitor tissue shall be supplied in rolls slit to the ordered width within the tolerance specified in Table 5.9.2 Splices shall be made with an adhesive such that the spliced area shall meet all require-ments of Table 2.except the limits on moisture content,and shall also meet the dielectric strength requirement of Table 3.The number of splices permitted shall be agreed upon by the purchaser and the seller.9.3 The internal diameter