1、Designation: D1792 17Standard Test Method forLong-Term Removability Properties of Emulsion FloorPolishes1This standard is issued under the fixed designation D1792; 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 the relativeease of removal of dried films of water-emulsion floor polishesfrom
3、common flooring substrates under accelerated conditions,which correspond to extended service aging.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 healt
4、h practices and determine the applica-bility of regulatory limitations prior to use.1.3 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Gui
5、des and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D1436 Test Methods for Application of Emulsion FloorPolishes to Substrates for Testing Purposes3. Summary of Test Method3.1 The dried films are condit
6、ioned at 37.8C (100F) inorder to simulate service aging. This method utilizes theGardner straight-line washability apparatus as a means forcontrolled removal of the dried films. A heavily weighted padis employed as a means of arriving at a scrubbing force similarto that of hand scrubbing. In order t
7、o distinguish between therelative removal properties of different polishes, the number ofoscillations required for complete removal is taken as ameasure of removability.4. Significance and Use4.1 This test method is used to predict removability of floorpolish after a treatment period that simulates
8、aging in the field.It allows for uniform mechanical and detergent action leavingthe only variable the actual removability of the polish.5. Apparatus5.1 Volumetric Pipet, 1-mL, graduated in 0.2-mL units.5.2 ApplicatorDoctor blade 51 mm (2 in.) wide by 25 mm(1 in.) deep and having 0.203-mm (0.008-in.)
9、 clearance alongthe 51-mm (2-in.) length.5.3 Test Flooring SubstrateOfficial Vinyl CompositionTile (OVCT),3shall be used in the test.5.4 Oven, capable of maintaining a temperature of 37.8 61.1 C (100 6 2 F).5.5 Washability ApparatusThe Gardner straight-linewashability machine.5.6 Abrading Surface Ny
10、lon Polishing Floor Pad,4attachedto a wood block of dimensions 89 by 38 mm (312 by 112 in.).Presoaked in stripper solution.5.7 WeightThe boat containing the pad is fitted to achievea total weight of 1-kg (212 614-lb). The weight should beproperly mounted for uniform load distribution.1This test meth
11、od is under the jurisdiction of Committee D21 on Polishes and isthe direct responsibility of Subcommittee D21.04 on Performance Tests.Current edition approved March 1, 2017. Published April 2017. Originallyapproved in 1960 as D1792 60 T. Last previous edition approved in 2012 asD1792 06 (2012)1. DOI
12、: 10.1520/D1792-06R12E01.2For 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 website.3OVCT tile may be obtained through A
13、rmstrong Flooring from various homeimprovement stores. The following Armstrong tile substrates have been found toperform adequately for this test method: Armstrong Excelon Feature Tile: Black(56790), http:/ sole source of supply of the apparatus known to the committee at this timeis 3M Co., 3M Cente
14、r, St. Paul, MN 55101. If you are aware of alternative suppliers,please provide this information toASTM 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 C
15、700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the
16、World Trade Organization Technical Barriers to Trade (TBT) Committee.16. Reagent6.1 Stripper Solution at Use Concentration:Alkaline cleaner53%Monoethanol amine (MEA) 1 %Water 96 %7. Sample7.1 The sample shall be thoroughly representative of thematerial in question and the portion used for the test s
17、hall bethoroughly representative of the sample itself.8. Procedure8.1 Preparation of Test SurfacesClean the test tiles withthe stripper solution and steel wool. Rinse thoroughly withwater and dry at room temperature.8.2 Polish ApplicationProceed in accordance withMethod D of Methods D1436. Apply in
18、duplicate as shown inFig. 1 0.8 mL of test polish, A to 51 by 203-mm (2 by 8-in.)section of OTVAT. Tile should be on a level bench top toensure uniform film thickness. Apply in similar fashion dupli-cate samples of a control test polish B. Repeat process for otherpolishes. Allow the coated panels to
19、 dry for 2 h at ambientconditions; then apply a second coat of polish in the samemanner as the first coat. Let coated panels dry1hatambientconditions.8.3 Accelerated Aging ConditionsStore the coated panelsin an oven maintained at a temperature of 37 6 1.1 C andcondition there for 48 h.8.4 Removabili
20、tyPlace the coated and conditioned panelon the plate of the washability apparatus in such a manner thatthe oscillating pad will travel at right angles to the longer sideof the dried polish film. Place a clean dummy panel on eitherside of the test panel to hold the latter panel in place and toprovide
21、 a uniform surface for the oscillating pad to travel upon.Soak the pad for at least 1 min in the stripper solution, insertpad assembly into the weighted (1-kg) boat, invert, and turn onthe motor for one cycle. Stop for 1 min. Restart motor. Keepthe pad wet by adding additional stripper solution drop
22、wiseonto the pad or into the coated panel. After 50 oscillations stopthe machine and remove and rinse the panel with water. Blotdry. If polish film remains, repeat the scrubbing for anadditional 50 oscillations and again examine the film afterrinsing and drying. Thereafter, if any film remains, repe
23、at theprocess of scrubbing, rinsing, and drying after each additional50 oscillations until complete removal is obtained or to amaximum of 200 total oscillations.9. Report9.1 The report shall include a qualitative rating according tothe following terminology:Removal EaseNumber of Oscillations Require
24、d forComplete RemovalExcellent 50 but 100 but 20010. Precision and Bias10.1 Duplicate determinations should not differ by morethan one rating group.11. Keywords11.1 emulsion; floor polishes; removability5Recipe for alkaline cleaner:Parts by WeightSodium sesquicarbonate 52Trisodium phosphate (anhydro
25、us) 22Disodium phosphate (anhydrous) 25Alkyl aryl sulfonate (40 % active) 1FIG. 1 Polish ApplicationD1792 172ASTM 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
26、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, either reap
27、proved 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 attend. If you
28、 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. Individual
29、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:/ 173
