1、ASTM D42h 83 W 0759510 0034bh3 7 W C-72-2d Designation:D 4269-83 AMERICAN SOCIETY FOR TESTING AND 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 Test Me
2、thod for SHORN PILE MASS OF FINISHED TUFTED PILE YARN FLOOR COVERING This standard is issued under the fixed designation D 4269;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 parenthaes indicat
3、es the year of last reapproval.A superscript epsilon(6)indicates an editorial change since the last revision or reapproval.1.Scope 1.1 This test method covers the determination of the yam mass per unit area above a stubble height of 1.3 mm(0.050 in.)in finished tufted pile yam floor covering.1.2 Thi
4、s test method is applicable to all fin-ished tufted pile yarn floor covering.1.3 This test method is not applicable to tufted floorcovering in which either the latex or need-lepunched fiber in the primary backing protrudes more than 1.3 mm(0.050 in.)above the primary backing.2.Applicable Document 2.
5、1 ASTM Standard:D 123 Terminology Relating to Textiles D418 Methods of Testing Pile Yam Fioor Covering Construction 3.Definitions 3.i backing,primav,n.-for tufted pile yarn floor covering,the fabric through which the pile yarn is carried by needles to form tufts:the backing fabric,3.2 binding site,n
6、.-for pile yarn floor cover-ing,a place at which the pile yam is or can be bound to the backing fabric.3.3 direction,lengthwise,n.-in textiles,the direction in a machine made fabric parallel to the direction of movement the fabric followed in the manufacturing machine.(Syn.-machine di-rection and wa
7、rpwise.)3.4 direction.widthwise,n.-in textiles,the direction in a machine made fabric perpendicular to the direction of movement the fabric followed in the manufacturing machine.(Syn.-cross ma-chine direction,weftwise,and fillingwise.)3.5 floor covering,finished pile yarn,n.-pile yam floor covering
8、which has undergone all steps of the manufacturing process.3.6 floor covering,pile yarn,n.-a textile product in which yam or yam segments are attached intermittently to a backing fabric s o as to project above the backing fabric to form a pile;the yam entering the backing fabric substantially perpen
9、dicular to the plane of the backing fabric.3.1 gage,n.-of tufiedpile yarn floor covering,the average disfance between adjacent binding sites in the widthwise direction.3.8 pile,n.-for pile yarn floor covering,the textured surface composed of many tufi legs bound to a backing fabric in an orderly and
10、 repetitive array.3.9 pile,multilevel,n.-for pile yarn floor cov-ering,pile in which some tuft legs are substan-tially longer than others.3.10 pile,shorn,n.-pile that is removed when a specimen is sheared,3.i 1 stubble,n.-in shorn floor covering,the portion of the pile that remains after shearing.3.
11、12 stubble height,n.-the distance the stub ble extends above the backing fabric.3.13 tu&n.-for pile yarn floor covering,all the yam bound to the backing fabric at one binding site.3.14 wave variation,n.-for pile yarn floor covering,a patterned displacement of the tuft binding sites from a stiaight l
12、ine in the lengthwise direction.3.15 For definitions of other textile terms used This test method is under the jurisdiction of ASTM Com-mittee D-13 on textiles and is the direct responsibility of Sub committee D13.21 on Pile Floor Coverings.Current edition approved July 29,1983.Published Sept.1983.A
13、nnrral Book ofASTMStandar&,Vols 07.01 and 07.02.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.ASTM D4267 83 m 0757510 0034664 O in this method,refer to Terminology D 123.4.Summary of Me
14、thod 4.1 The mass per unit area of pile yam above a stubble height of 1.3 mm(0.050 in.)is deter-mined for the three or more specimens.The specimens are cut from a conditioned sample and then measured or are cut from an uncondi-tioned sample and conditioned before measur-ing,so that the area of each
15、specimen after con-ditioning is measured.Each conditioned speci-men is then weighed.The specimens are then sheared to a stubble height of 1.3 mm(0.050 in.)and reweighed,The shorn pile mass is calculated by subtracting the shorn specimen mass from the unshorn specimen mass.The shorn pile mass per uni
16、t area is then calculated as the ratio of the specimen shorn pile mass to the specimen area.5,Uses and Significance 5.1 This test method provides a method for determining the mass of the shorn pile per unit area.5.2 This test method is not recommended for a referee method.5.3 The results obtained from this test method are useful for judging the compliance of ship ments with material specifications.If there is a disagreement arising from differences in values reported by the purchaser and supplie
