1、Designation: F1265 03a (Reapproved 2013)Standard Test Method forResistance to Impact for Resilient Floor Tile1This standard is issued under the fixed designation F1265; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of la
2、st 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 test method measures the resistance to impact ofresilient floor tile.1.2 The values stated in inch-pound units are
3、to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility o
4、f 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:2F141 Terminology Relating to Resilient Floor Coverings3. Terminology3.1 DefinitionsFor definitions of t
5、erms used in this testmethod refer to Terminology F141.4. Significance and Use4.1 Resilient floor tile is subjected to impacts from objectsthat may be inadvertently dropped on to surfaces. It is notpossible to know all of the factors related to the droppedobjects (shape, weight, height of drop) or t
6、he condition of theenvironment in which the tile is located (types of subfloor,degree of adhesion to subfloor, temperature). Therefore, thistest method can only provide a relative measure of resistance ofresilient floor tile to impact.5. Apparatus5.1 Impact Testing Apparatus, consisting essentially
7、of aspecimen support, weights, and a device for guiding a freelyfalling weight. A suitable apparatus is shown in Fig. 1.5.1.1 Specimen Support, consisting of three steel balls, each1 in. in diameter, equally spaced over a rigid steel base so thata circle drawn through the center of the balls is 5 in
8、. indiameter. The three balls shall be firmly attached to the baseplate and the balls and the base plate shall weigh not less than10 lbs (4.5 kg).5.1.2 Steel Ball, 1-in. (2.54-cm diameter) weighing 0.143 60.002 lb (0.065 6 0.001 kg) shall be used for testing18 (0.317cm) and thinner floor covering; a
9、nd a 1-in. (2.54 cm) diametersteel cylinder weighing 0.350 6 0.005 lb (0.159 6 0.002 kg)shall be used and having a hemispherical end, for testing316 in.(0.476 cm) and14 in. (0.635 cm) material.5.1.3 Slotted Tube, graduated in14 in. (0.635 cm) divisions,about 20 in. (50.8 cm) in height and of suffici
10、ent size to permitthe weight to fall through it freely, is mounted vertically overthe specimen support so as to guide the freely falling weight tothe center of the circle formed by the three balls.5.2 Zinc Oxide Paste, made by mixing powdered zinc oxidewith water to form a thin paste.6. Test Specime
11、n6.1 The specimen shall consist of a 6-in. by 6-in. (15 cm by15 cm) portion of the test unit.7. Conditioning7.1 Conditioning in AirCondition the specimens forphysical test in air maintained at 73.4 6 1.8F (25 6 1C) and50 6 5 % relative humidity for not less than 24 h beforetesting.7.2 Conditioning i
12、n WaterMaintain the water termpera-ture at 77 6 1.8F (2 6 1C) unless otherwise specified.Immerse the specimen for not less than 15 min or more than 30min before testing.8. Procedure8.1 The height from which the weight is dropped and thenumber of times the weight is dropped shall be as specified inth
13、e detailed specification.8.2 Spread a thin coating of zinc oxide paste over the centerof the wearing surface of the specimen so as to form a circle 3618 in. (7.62 6 0.317 cm) in diameter. With the coated sidedown, immediately center the specimen over the three ballsattached to the specimen support s
14、o that the falling weight will1This test method is under jurisdiction of ASTM Committee F06 on ResilientFloor Coverings and is the direct responsibility of Subcommittee F06.30 on TestMethods - Performance.Current edition approved May 1, 2013. Published May 2013. Originallyapproved in 1989. Last prev
15、ious edition approved in 2008 as F1265 03a (2008).DOI: 10.1520/F1265-03AR13.2For 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 onth
16、e ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1strike the specimen at the center. Drop the required weight,5.1.2, freely through the guide tube from the specified heightthe specified number of times, 8.1, so that it wi
17、ll strike thespecimen at the center. Carefully return the specimen to itsoriginal position after each drop. After the final drop, removethe specimen and examine for breaks or cracks that extendbeyond the coated circle. Failure is defined as a completebreakage of the tile or crack development beyond
18、the circle.Examine the coated surface under good illumination withoutflexing the specimen. Test a second specimen by placing thespecimen at 90 to that of the first sequence.8.3 When the specimen is conditioned in water, remove itfrom the water, immediately wipe dry, and, within 15 s, coatwith zinc o
19、xide paste as described in 8.2. Immediately test asdescribed in 8.2.9. Report9.1 Unless otherwise specified in the detailed specification,two specimens from each test unit shall be tested. Specimensshall be positioned 90 from each other.FIG. 1 Impact TesterF1265 03a (2013)29.2 The weight used, the h
20、eight from which the weight wasdropped, and the number of drops shall be recorded.9.3 Record number of specimens with number that passedand failed. If specimen failed, note number of drops to failure,8.2.10. Precision and Bias10.1 No statement is made about either the precision or biasof this test m
21、ethod since the results merely state whether thereis conformance to the criteria for success specified in theprocedure.311. Keywords11.1 crack; impact; resilient; steel ball; tileASTM International takes no position respecting the validity of any patent rights asserted in connection with any item me
22、ntionedin this standard. Users of this standard are expressly 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 committe
23、e and must be reviewed every five years andif not revised, either 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 meeti
24、ng of theresponsible technical committee, which you may attend. 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
25、 Box C700, West Conshohocken, PA 19428-2959,United States. Individual 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/).3A synopsis of the round robin test data is available from ASTM Headquarters.Request RR:F06-1000.F1265 03a (2013)3
