1、Designation: D 1793 92 (Reapproved 2008)Standard Test Method forWater Spotting of Emulsion Floor Polishes1This standard is issued under the fixed designation D 1793; 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 waterspotting resistance of water emulsion floor polishes. The testmethod app
3、roximates the actual conditions of water spottingencountered in service.1.2 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 t
4、he applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 1436 Test Methods for Application of Emulsion FloorPolishes to Substrates for Testing Purposes3. Terminology3.1 Definition:3.1.1 water spottingany change in appearance of surfaceresulting solely fro
5、m the action of cool water.4. Significance and Use4.1 This test method measures the ability of a floor polish toresist spotting by water. This test method may be used tomeasure the extent of damage by a large amount of water or ina separate method to measure the amount of damage by a smallamount of
6、water that has evaporated to dryness. Referencepolishes should be used for comparison.NOTE 1The test method may induce slight whitening, color change,noticeable change in appearance, including removal of the film, which iscaused by contact with water.5. Apparatus5.1 SubstrateThe substrate to be used
7、 is vinyl composi-tion tile (OVCT).35.2 Distilled Water.5.3 Pipet, volumetric, 1-mL.6. Preparation of Test Panel6.1 Apply the emulsion floor polish on the black officialvinyl composition tile panel in accordance with Method C(Manual Dip Method) of Test Methods D 1436. After applica-tion, place the p
8、anel in a near vertical position and at the endof 10 min, wipe off the bead at the bottom of the panel andallow the panel to dry in a vertical position for2hatstandardconditions of 50 6 4 % relative humidity and 23.9 6 1.1C (756 2F). Apply a second coat in the same manner but reversethe panel so tha
9、t the top is at the bottom. Drain in a nearvertical position for 10 min, wipe off the bead, and continuedrying in a vertical position at standard conditions for 24 h.NOTE 2The drying time, counted from the time of application of thesecond coat, may be varied from 24 h, but it should be remembered th
10、atsome floor polishes which have suitable water spotting resistance duringtheir normal service life do not achieve this resistance until 24 to 48 h afterapplication.7. Procedure7.1 Dynamic TestStandard conditions of 50 6 4 % rela-tive humidity and 23.9 6 1.1C (75 6 2F) should prevail inthe test area
11、. Place the panel in a horizontal position makingsure that the top is level. Place 1 mL of distilled water near thecenter of the panel, and allow it to stand undisturbed for 1 h.1This test method is under the jurisdiction ofASTM Committee D21 on Polishesand is the direct responsibility of Subcommitt
12、ee D21.04 on Performance Tests.Current edition approved March 1, 2008. Published April 2008. Originallyapproved in 1960. Last previous edition approved in 2002 as D 1793 92(2002).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org.
13、 For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3The sole source of supply of the apparatus known to the committee at this timeis Official Vinyl Composition Tile panels may be purchased from the ChemicalSpecialties Manufacturers A
14、ssn., 1913 Eye St., N.W. Washington, DC 20006. If youare aware of alternative suppliers, please provide this information to ASTMHeadquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend.1Copyright ASTM International, 100 B
15、arr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Use cheesecloth,4or a soft cotton cloth previously wet withdistilled water and well wrung out so that it is just damp andwipe up the water from the panel. Rub a small piece of drycloth very lightly over the area to remove
16、 the last of thedampness from the panel test area. Allow to stand undisturbedfor 1 h and observe (Note 3).7.2 Static TestStandard conditions of 50 6 4 % relativehumidity and 23.9 6 1.1C (75 6 2F) should prevail in thetest area. Place one drop of distilled water on the panel near thecenter. Allow the
17、 drop of water to evaporate to dryness (Note4). Do not disturb this test area in any way with either a wet ordry cloth. Allow to stand 1 h after area is apparently dry andobserve.NOTE 3Hand buffing of the test area of the film is permitted prior toobservation.NOTE 4The normal period of evaporation i
18、s from 1 to 3 h dependingon such factors as the area wet by the drop of water, solubilitycharacteristics of the film, etc.8. Precision and Bias8.1 This test method consistently differentiates the polishwith poor water-spot resistance from polishes with goodwater-spot resistance with an acceptable di
19、fferentiation ofpolishes that are very close together. It has been found tocorrelate well with floor experience.8.2 Since there is no accepted reference material suitable fordetermining the bias for the procedure for measuring the waterspotting of emulsion floor polishes, bias has not been deter-min
20、ed.9. Keywords9.1 dynamic; emulsion; OVCT; polishes; static;water-spottingASTM 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 validity
21、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 comments
22、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 not r
23、eceived 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 copies
24、) 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).4The sole source of supply of the apparatus known to the committee at this timeis Kendall Mills, Walpole, MA. If you are aware of alternative suppliers, pleaseprovide this information to ASTM Headquarters. Your comments will receivecareful consideration at a meeting of the responsible technical committee, whichyou may attend.D 1793 92 (2008)2
