1、Designation: D1793 92 (Reapproved 2015)Standard Test Method forWater Spotting of Emulsion Floor Polishes1This standard is issued under the fixed designation D1793; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last re
2、vision. 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 waterspotting resistance of water emulsion floor polishes. The testmethod approx
3、imates 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 the
4、applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D1436 Test Methods for Application of Emulsion FloorPolishes to Substrates for Testing Purposes3. Terminology3.1 Definitions:3.1.1 water spottingany change in appearance of surfaceresulting solely from t
5、he 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 wat
6、er 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 is
7、 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 D1436. Afterapplication, place the panel i
8、n a near vertical position and at theend of 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 that the
9、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 thatsome
10、 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. Plac
11、e 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.Use cheesecloth,4or a soft cotton cloth previously wet withdistilled water and well wrung out so that it is just damp andwipe up
12、 the water from the panel. Rub a small piece of dry1This 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 1960. Last
13、 previous edition approved in 2008 as D1793 92(2008).DOI: 10.1520/D1793-92R15.2For 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 on
14、the 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 Assn., 1913 Eye St., N.W. Washington, DC 20006. If youare aware of alternative suppliers, please provi
15、de this information to ASTMHeadquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend.4The sole source of supply of the apparatus known to the committee at this timeis Kendall Mills, Walpole, MA. If you are aware of alterna
16、tive suppliers, pleaseprovide this information to ASTM Headquarters. Your comments will receivecareful consideration at a meeting of the responsible technical committee, whichyou may attend.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United Sta
17、tes1cloth very lightly over the area to remove 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 distille
18、d water on the panel near thecenter. Allow the 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 toobserv
19、ation.NOTE 4The normal period of evaporation is 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 g
20、oodwater-spot resistance with an acceptable differentiation 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 emulsi
21、on floor polishes, bias has not been deter-mined.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 expres
22、sly 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 committee and must be reviewed every five years andif not revised,
23、 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 meeting of theresponsible technical committee, which you may at
24、tend. 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 Box C700, West Conshohocken, PA 19428-2959,United States.
25、 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 Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 92 (2015)2
