1、Designation: D 1455 87 (Reapproved 2002)Standard Test Method for60 Specular Gloss of Emulsion Floor Polish1This standard is issued under the fixed designation D 1455; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last
2、 revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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
3、 a 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 concer
4、ns, 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:D 523 Test Method for Specular Gloss2D 143
5、6 Test Methods for Application of Emulsion FloorPolishes to Substrates for Testing Purposes33. 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 o
6、f reception 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
7、be differentiated at a 60 angle. A20 angle measured in accordance with Test Method D 523may give better definition of gloss.5. Apparatus5.1 GlossmeterThe instrument and the reference stan-dards shall conform to the requirements prescribed in TestMethod D 523, using an angle of reflection of 60.5.2 F
8、loor Polish ApplicatorThe equipment for applica-tion of the floor polish shall conform to the requirementsprescribed in Test Methods D 1436.6. Substrates6.1 Two standard substrates are commonly used; however,commercial types may be used to test specific applications.Better agreement of results can b
9、e expected when 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,4,5having a highly polished plane surfa
10、cewith a refractive index of 1.567.6.1.2 Offcial Vinyl Composition Tile,5,6new and unused.7. Procedure7.1 Apply the floor polish to the substrate in accordancewith the procedures described in Test Methods D 1436.Method A, using the automatic dip coater, can be expected togive better agreement of res
11、ults. For comparison of results, thesame method of application must be used.7.2 Determine the specular gloss at 60 in accordance withTest Method D 523.7.3 Determine the specular of gloss at 20 in accordancewith Test Method D 523 if the 60 gloss does not give gooddifferentiation between high-gloss sa
12、mples.8. Report8.1 The report shall include the following:8.1.1 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 test1This test method is under
13、 the jurisdiction of ASTM Committee D21 on Polishesand is the direct responsibility of Subcommittee D21.04 on Performance Tests.Current edition approved Jan. 30, 1987. Published March 1987. Originallypublished as D 1455 56 T. Last previous edition D 1455 82.2Annual Book of ASTM Standards, Vol 06.01.
14、3Annual Book of ASTM Standards, Vol 15.04.4The sole source of supply of black glass known to the committee at this timeis L. Perilstein Glass, 2543 Kensington Ave. Phila., PA 19125.5If you are aware of alternative suppliers, please provide this information toASTM Headquarters. Your comments will rec
15、eive careful consideration at a meetingof the responsible technical committee, which you may attend.6The 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 20006.1Copyright ASTM
16、International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.surface differ in gloss 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.
17、Precision and Bias9.1 Readings obtained on the same instrument, using filmsdried on black glass, should be repeatable to 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 m
18、ay be uncertain due to the cumulativeeffect of several sources of error,7that is, difference betweenthe geometric distribution of flux reflected from standards andspecimens may bring about uncertainties in the measuredgloss, even though the source and receiver apertures are withinthe tolerances spec
19、ified. Inaccuracy of reading may result eventhough the precision of the measurement mechanism is heldwithin the tolerance 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 pol
20、ish; glossmeter; inci-dent light; OVCT; reflections; specular gloss; substrateASTM International takes no position respecting 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 valid
21、ity 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 committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comme
22、nts 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 meeting of theresponsible technical committee, which you may attend. If you feel that your comments have n
23、ot 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 Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple co
24、pies) 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).7For 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.D 1455 87 (2002)2
