ASTM_D_5417_-_11.pdf

Designation:D541711Standard Practice forOperation of the Vettermann Drum Tester1This standard is issued under the fixed designation D5417;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice describes the equipment and operation ofthe Vettermann drum tester for testing pile yarn floor coveringto produce changes in appearance and color due to changes insurface structure by mechanical action.1.2 This practice is only applicable for use in testing unusedpile floor covering of all types.It is not applicable for use intesting used pile yarn floor coverings.1.3 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered 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 prior to use.2.Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD1776 Practice for Conditioning and Testing TextilesD5684 Terminology Relating to Pile Floor Coverings3.Terminology3.1 For definitions of terms relating to Pile Floor Coverings,D13.21,refer to Terminology D5684.3.1.1 The following terms are relevant to this standard:carpet,finished,finished pile yarn floor covering,floorcovering,lengthwise direction,pile,pile lay,pile yarn floorcovering,pitch,practice,primary backing,secondary backing,textile floor covering,texture,tufted fabric.3.2 For all other terminology related to textiles,refer toTerminology D123.4.Summary of Practice4.1 The test specimen is mounted in the rotatable drum withthe pile surface towards the center of the drum and the edgesunder the retaining segments.Asteel ball,with 14 rubber studsrolls randomly inside the drum on the pile surface for aspecified number of revolutions.5.Significance and Use5.1 This equipment may be used to bring about the changesin texture on the surface of pile floor covering caused bymechanical action.5.2 The acceptance criteria of this practice shall be set bymutual agreement between the purchaser and the supplier.6.Apparatus and Material6.1 Vettermann Drum Tester(See Fig.1):6.1.1 Drum,incorporating a revolution counter and fouradjustable retaining segments(thickness:0.60 6 0.03 in.(15 6 1 mm)on each side wall of the drum.A free-runningcircular brush mounted in such a way that it lightly contacts thesurface of specimens and loose fibers are continuously ex-tracted by a vacuum cleaner.A vulcanized fiber backing sheet93.3 by 10.6 by 0.06 in.(2320 by 270 by 1.5 mm)is looselylaid inside the drum.This sheet remains permanently in thedrum.6.1.2 The Vettermann drum dimensions are as follows:Internal diameter28.70 0.39 in.(730 10 mm)Internal depth10.60 0.20 in.(270 5 mm)Effective depth9.40 0.28 in.(240 7 mm)Thickness of curved surface0.31 0.02 in.(8 0.5 mm)6.1.3 Driving System,with a speed of 1.65 rad/s(16 6 1rpm)and the direction of rotation is reversed every fiveminutes,stopping between reversals for approximately 1 s timeintervals,with approximately one second stationary time.6.1.4 Protective Cage,fits over the drum and must be inplace prior to Vettermann drum rotation.6.1.5 Round Steel Ball,fitted with fourteen cylindricalrubber studs located equally spaced on the ball surface.Thestuds are replaceable and are screwed into flat faces on thesurface of the ball.(See Fig.2.):1This practice is under the jurisdiction ofASTM Committee D13 on Textiles andis the direct responsibility of Subcommittee D13.21 on Pile Floor Coverings.Current edition approved Aug.1,2011.Published September 2011.Originallyapproved in 1999.Last previous edition approved in 2005 as D541705.DOI:10.1520/D5417-11.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 Diameter of ball4.70 0.01 in.(120.0 0.2 mm)Distance betweendiametricallyopposed flat stud-mountingfaces4.60 0.01 in.(118.0 0.1 mm)Mass without studs15.0 0.2 lb(6800 100 g)Mass with studs16.8 0.2 lb(7600 100 g)6.1.6 Replaceable Rubber Studs,are a composite rubberdisk attached to a steel backing plate with integral mountingscrew.The dimensions are:Diameter1.54 0.02 in.(39.0 0.5 mm)Total height includingbacking plate0.59 0.02 in.(15.0 0.5 mm)Thickness of steelbacking plate0.12 in.(3 mm)Rubber hardness48 3Type A6.1.6.1 The studs must be replaced