1、Designation: D1455 87 (Reapproved 2015)Standard Test Method for60 Specular Gloss of Emulsion Floor Polish1This standard is issued under the fixed designation D1455; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last r
2、evision. 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 covers the determination of the 60specular gloss of films of emulsion floor polish after applica-tion to a
3、substrate.NOTE 1Specular gloss is one of several related appearance attributesthat produce the sensation of glossiness. For this reason, specular glossmeasurements may not always correlate well with visual rankings ofglossiness.1.2 This standard does not purport to address all of thesafety concerns,
4、 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:2D523 Test Method for Specular GlossD1436 Tes
5、t Methods for Application of Emulsion FloorPolishes to Substrates for Testing Purposes3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 specular glossthe ratio of reflected to incident light,times 1000, for specified apertures of illumination and recep-tion when the axis of rece
6、ption coincides with the mirror imageof the axis of illumination.4. Significance and Use4.1 This test method may be used to evaluate the differencein gloss of dried films of emulsion floor polishes when the lightreflected at a 60 angle is measured. Extremely high- orlow-gloss polishes may not be dif
7、ferentiated at a 60 angle.A20 angle measured in accordance with Test Method D523may give better definition of gloss.5. Apparatus5.1 GlossmeterThe instrument and the reference stan-dards shall conform to the requirements prescribed in TestMethod D523, using an angle of reflection of 60.5.2 Floor Poli
8、sh ApplicatorThe equipment for applicationof the floor polish shall conform to the requirements prescribedin Test Methods D1436.6. Substrates6.1 Two standard substrates are commonly used; however,commercial types may be used to test specific applications.Better agreement of results can be expected w
9、hen black glassis used as the substrate, except for those cases where thesample being tested produces a hazy film. Where a hazy film isproduced, black glass should not be employed as the substrate.The standard types are as follows:6.1.1 Black Glass,3,4having a highly polished plane surfacewith a ref
10、ractive index of 1.567.6.1.2 Offcial Vinyl Composition Tile,4,5new and unused.7. Procedure7.1 Apply the floor polish to the substrate in accordancewith the procedures described in Test Methods D1436. MethodA, using the automatic dip coater, can be expected to givebetter agreement of results. For com
11、parison of results, the samemethod of application must be used.7.2 Determine the specular gloss at 60 in accordance withTest Method D523.7.3 Determine the specular of gloss at 20 in accordancewith Test Method D523 if the 60 gloss does not give gooddifferentiation between high-gloss samples.8. Report
12、8.1 The report shall include the following:1This test method is under the jurisdiction ofASTM Committee D21 on Polishesand is the direct responsibility of Subcommittee D21.04 on Performance Tests.Current edition approved Nov. 1, 2015. Published November 2015. Originallyapproved in 1956. Last previou
13、s edition approved in 2008 as D1455 87(2008).DOI: 10.1520/D1455-87R15.2For 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
14、 website.3The sole source of supply of black glass known to the committee at this timeis L. Perilstein Glass, 2543 Kensington Ave. Phila., PA 19125.4If you are aware of alternative suppliers, please provide this information toASTM Headquarters.Your comments will receive careful consideration at a me
15、etingof the responsible technical committee, which you may attend.5The sole source of supply of Official Vinyl Composition Tile known to thecommittee at this time is Chemical Specialties Manufacturers Assn., 1913 EyeStreet, N.W. Washington, DC 20006.Copyright ASTM International, 100 Barr Harbor Driv
16、e, PO Box C700, West Conshohocken, PA 19428-2959. United States18.1.1 Average specular gloss reading at 60, and at 20 if a20 angle was used.8.1.2 Substrate used,8.1.3 Method of application of film,8.1.4 Number of coats applied,8.1.5 Presence of any specimen where portions of testsurface differ in gl
17、oss from average by more than 5 % ofaverage,8.1.6 Name of manufacturer of gloss-meter and modeldesignation, and8.1.7 Identification of working standard or standards ofgloss used.9. Precision and Bias9.1 Readings obtained on the same instrument, using filmsdried on black glass, should be repeatable t
18、o within 2.5 % ofthe magnitude of the readings. Readings obtained on differentinstruments should be reproducible to within 5 % of themagnitude of the readings.9.2 Results obtained may be uncertain due to the cumulativeeffect of several sources of error,6that is, difference betweenthe geometric distr
19、ibution of flux reflected from standards andspecimens may bring about uncertainties in the measuredgloss, even though the source and receiver apertures are withinthe tolerances specified. Inaccuracy of reading may result eventhough the precision of the measurement mechanism is heldwithin the toleran
20、ce specified, and lens arrangement and strayreflections from the interior walls of the instrument may causeerrors in gloss readings.10. Keywords10.1 black glass; emulsion; floor polish; glossmeter; inci-dent light; OVCT; reflections; specular gloss; substrateASTM International takes no position resp
21、ecting the validity of any patent rights asserted in connection with any item mentionedin 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 s
22、tandard is subject to revision at any time by the responsible technical committee 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 Interna
23、tional Headquarters. Your comments will receive careful consideration at a meeting 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 bel
24、ow.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO 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
25、(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 Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ a discussion of these sources of error, see Hammond, III, H. K., andNimeroff, I., “Measurement of Sixty-Degree Specular Gloss,” Journal of Research,Nat. Bureau Standards, Vol 44, No. 6, June 1950, p. 585. (Research Paper RP 2105).A condensed version of this paper was published in the ASTM Bulletin, No. 169,October 1950, p. 54.D1455 87 (2015)2
