1、Designation: D 1792 06Standard Test Method forLong-Term Removability Properties of Emulsion FloorPolishes1This standard is issued under the fixed designation D 1792; 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 relativeease of removal of dried films of water-emulsion floor polishesfr
3、om 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 he
4、alth practices and determine the 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. Summary of Test Method3.1 The dried films are conditioned at 37.8C (100
5、F) 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 to distinguish betwe
6、en 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 aging in the field.
7、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.) clearance alongthe
8、 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 61.1C (100 6 2F).5.5 Washability ApparatusThe Gardner straight-linewashability machine.5.6 Abrading Surface Nylon Polishing Floor P
9、ad,4attachedto a wood block of dimensions 19 by 89 by 38 mm (34 by 312by 112 in.). Presoaked in stripper solution.5.7 WeightThe boat containing the pad is fitted with a1-kg (212 614-lb) weight. The weight should be properlymounted for uniform load distribution.6. Reagent6.1 Stripper Solution at Use
10、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 shall bethoroughly representative of the sample itself.1This test method is under the jurisdiction of Committe
11、e D21 on Polishes and isthe direct responsibility of Subcommittee D21.04 on Performance Tests.Current edition approved June 1, 2006. Published June 2006. Originallyapproved in 1960 as D 1792 60 T. Last previous edition approved in 2002 asD 1792 82(2002).2For referenced ASTM standards, visit the ASTM
12、 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.3The sole source of supply of the apparatus known to the committee at this timeis Chemical Specialties Manu
13、facturers Assn., 1913 Eye St., N.W., Washington, DC20006. If you are aware of alternative suppliers, please provide this information toASTM Headquarters.Your comments will receive careful consideration at a meetingof the responsible technical committee, which you may attend.4The sole source of suppl
14、y of the apparatus known to the committee at this timeis 3M Co., 3M Center, 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
15、 may attend.5Recipe for alkaline cleaner:Parts by WeightSodium sesquicarbonate 52Trisodium phosphate (anhydrous) 221Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.8. Procedure8.1 Preparation of Test SurfacesClean the test tiles witht
16、he stripper solution and steel wool. Rinse thoroughly withwater and dry at room temperature.8.2 Polish ApplicationProceed in accordance withMethod D of Methods D 1436. Apply in 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 leve
17、l 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 dry for 2 h at ambientconditions; then apply a second coat of polish in the samemanner as the first coat. Let coated panel
18、s dry1hatambientconditions.8.3 Accelerated Aging ConditionsStore the coated panelsin an oven maintained at a temperature of 37 6 1.1C andcondition there for 48 h.8.4 RemovabilityPlace the coated and conditioned panelon the plate of the washability apparatus in such a manner thatthe oscillating brush
19、 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 a uniform surface for the oscillating brush to travelupon. Soak the pad for at least 1 min in the stripper solution,inser
20、t pad assembly into the weighted (1-kg) boat, invert, andturn on the motor for one cycle. Stop for 1 min. Restart motor.Keep the brush wet by adding additional stripper solutiondropwise onto the pad or into the coated panel. After 50oscillations stop the machine and remove and rinse the panelwith wa
21、ter. Blot dry. If polish film remains, repeat the brushingfor an additional 50 oscillations and again examine the filmafter rinsing and drying. Thereafter, if any film remains, repeatthe process of brushing, rinsing, and drying after each addi-tional 50 oscillations until complete removal is obtaine
22、d or toa maximum of 200 total oscillations.9. Report9.1 The report shall include a qualitative rating according tothe following terminology:Removal EaseNumber of Oscillations Required forComplete RemovalExcellent 50 but 100 but 20010. Precision and Bias10.1 Duplicate determinations should not differ
23、 by morethan one rating group.11. Keywords11.1 emulsion; floor polishes; removabilityASTM 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 th
24、e 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 reapproved or withdrawn. You
25、r 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 feel that your comments
26、 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 reprints (single or mult
27、iple 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).Disodium phosphate (anhydrous) 25Alkyl aryl sulfonate (40 % active) 1FIG. 1 Polish ApplicationD1792062
