1、Designation:D969 85(Reapproved 2003)1Standard Test Method forLaboratory Determination of Degree of Bleeding of TrafficPaint1This standard is issued under the fixed designation D969;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the
2、year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1NOTE1.2 was corrected editorially in Decembe
3、r 2006 to indicate SI units as preferred measurement.1.Scope1.1 This test method covers a laboratory test procedure fordetermining the degree of bleeding of traffic or pavementmarking paints.1.2 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for i
4、nformationonly.1.3 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 applica-bility of regulatory limitations prior to use.2.R
5、eferenced Documents2.1 ASTM Standards:2D476 Classification for Dry Pigmentary Titanium DioxideProductsD867 Specification for Pumice Pigment3D868 Test Method for Evaluating Degree of Bleeding ofTraffic PaintD1199 Specification for Calcium Carbonate Pigments2.2 ASTM Adjuncts:D 868 Bleeding resistance
6、of paint(one photo)43.Significance and Use3.1 Solvents in a traffic paint may cause bleeding ofpavement constituents into the traffic marking,thereby render-ing the traffic marking less effective as a lane or directionalindicator.This test method describes how to prepare a panel forevaluation.The ve
7、ry subjective method of evaluating thedegree of bleeding raises questions as to the usefulness of theresult for specification compliance.4.Apparatus4.1 Film ApplicatorA conventional type drawdown gagethat casts a film having a minimum width of 50 mm(2 in.)andan approximate wet thickness of 380 m(15
8、mils)(applicatorclearance of approximately 760 m(30 mils).4.2 Test Panel for Coal-Tar SubstrateA 127 by 254-mm(5 by 10-in.)piece cut from a standard roll of so-called“6.8-kg(15-lb)coal-tar saturated asbestos or rag felt”(see Note 1).4.3 Test Panel for Asphalt SubstrateA 127 by 254-mm(5by 10-in.)piec
9、e cut from a standard roll of 6.8-kg(15-lb)asphalt-saturated felt.NOTE1The following paint composition,when used on 6.8-kg(15-lb)felts from various sources,gave the severe bleeding necessary fora rating of between 4 and 2 on the coal tar,and the lesser bleedingnecessary for a rating between 9 and 7
10、on asphalt,when compared to thephotographic reference standards of Test Method D868.4This controlpaint is suggested only for use in standardizing the test panels.1This test method is under the jurisdiction of ASTM Committee D01 on Paintand Related Coatings,Materials,and Applications and is the direc
11、t responsibility ofSubcommittee D01.44 on Traffic Coatings.Current edition approved Dec.1,2003.Published December 2003.Originallyapproved in 1948.Last previous edition approved in 1985 as D969 85(1998).DOI:10.1520/D0969-85R03E01.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orco
12、ntact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Withdrawn.The last approved version of this historical standard is referencedon www.astm.org.4Copies of the pictorial photographic refer
13、ence standards are contained in thepublication Pictorial Standards of Coating Defects,and may be obtained fromASTM International Headquarters(orderAdjunct No.ADJD0868)or the Federationof Societies for Coating Technology,492 Norristown Rd.,Blue Bell,PA19422.Theoriginal source of the photographic refe
14、rence standards illustrated in Fig.1 is theFederation.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.NOTICE:This standard has either been superseded and replaced by a new version or withdrawn.Contact ASTM International(www.astm.org)for t
15、he latest informationPounds(kg)AGallons(L)BTitanium dioxide TiO2/(Classification D476,Type II,Class II)219.36.25Calcium carbonate/CaCO3/ASTM Specifi-cation D1199525.723.29Aluminum stearate(a 5%mixture in toluolshall gel below 120F)2.10.23Pumice,No.100(Specification D867)87.84.48Alkyd resin solution,
16、pure oxidizing 52%soyaoil modified,50%solution in 38 K.B.mineralspirits425.755.98V.M.&P.naphtha53.98.78Lead naphthenate,24%5.70.59Cobalt naphthenate,6%1.30.16Chemical ASA(anti-skin agent)1.80.24Totals1323.3100.00A1 lb=0.454 kg.B1 gal=3.7854 L.5.Preparation of Test Panel5.1 Cut the 125 by 255-mm(5 by 10-in.)specimen panelfrom that portion of the roll 5 in.in from the edges.5.2 Provide a nonbleeding contrast surface by affixing a20-mm(34-in.)cellophane tape,with firm pressure,to theentire length o