1、Designation:D71312Standard Practice forConducting Road Service Tests on Fluid Traffic MarkingMaterials1This standard is issued under the fixed designation D713;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision
2、.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 practice covers the determination of the relativeservice life of fluid traffic marking materials such as paint,thermoplastic,epoxy,
3、and polyester products under actual roadconditions using transverse test lines.Materials under test areapplied under prescribed conditions and periodic observationsare made using prescribed performance criteria.1.2 The values stated in SI units are to be regarded as thestandard.The values given in p
4、arentheses are for informationonly.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 limitati
5、ons prior to use.2.Referenced Documents2.1 ASTM Standards:2D711 Test Method for No-Pick-Up Time of Traffic PaintD913 Practice for Evaluating Degree of Traffic Paint LineWearD6628 Specification for Color of Pavement Marking Mate-rialsE1710 Test Method for Measurement of RetroreflectivePavement Markin
6、g Materials with CEN-Prescribed Ge-ometry Using a Portable RetroreflectometerE2367 Test Method for Measurement of Nighttime Chroma-ticity of Pavement Marking Materials Using a PortableRetroreflection Colorimeter3.Significance and Use3.1 This practice is an accelerated evaluation of beadretention,ret
7、roreflectivity,daytime color,night time color,andwear characteristics of fluid traffic marking materials.It is usedto determine the useful life of such markings in the field.Thesame procedures are applicable to evaluating longitudinal linesto determine service life.4.Type and Location of Pavement fo
8、r Tests4.1 Select sections where traffic is moderate and free-rollingwith no grades,curves,intersections,or access points nearenough to cause excessive braking or turning movements,where wear is uniform with full exposure to the sun throughoutdaylight hours,and there is good drainage.Select surfaces
9、 thatare representative of the pavements upon which the fluid trafficmarking material will be used in practice.Such surfacesinclude portland cement concrete,sheet asphalt,bituminousconcrete,rock asphalt,and bituminous surface treatment.5.Conditions at Time of Application5.1 Clean the test area thoro
10、ughly of all foreign material.Follow the pavement marking manufacturers recommendationfor the application of the pavement marking to be tested.Thisshould include the recommendations for air and pavementtemperature,material temperature,relative humidity,windchill,and wind speed.Application between 10
11、 a.m.and 3 p.m.is recommended.During application record air and pavementtemperature,wind speed,and relative humidity hourly.6.Measurement of Wet Film Thickness6.1 To aid in obtaining the correct film thickness,a length ofroofing paper placed by the side of the road can be used.Placea rigid metal tes
12、t panel on the roofing paper and in the path ofthe test line.A 300 by 300-mm(12 by 12-in.)metal panel 1.5mm(116in.)in thickness is satisfactory.Immediately after thetest line is applied by the motorized striper,read the wet filmthickness.If the wet film thickness is not satisfactory,adjust thespray
13、pressure and repeat until the target wet film thickness isattained.It is important that no glass beads or other interferingmaterials be present that would give a false wet film reading.When the wet film thickness is correct,apply a test line acrossa tared metal panel and weigh immediately.A balance
14、must beimmediately available and be thoroughly shielded from windas well as be of 1500-g capacity with 0.1 g or better sensitivity.As a basis for determination of glass bead application(7.1)the1This practice is under the jurisdiction of ASTM Committee D01 on Paint andRelated Coatings,Materials,and A
15、pplications and is the direct responsibility ofSubcommittee D01.44 on Traffic Coatings.Current edition approved Dec.15,2012.Published March 2013.Originallyapproved in 1943.Last previous edition approved in 2010 as D713 90(2010).DOI:10.1520/D0713-12.2For referenced ASTM standards,visit the ASTM websi
16、te,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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 weight of a paint line 100 by 300 mm(4 by 12 in.)(withoutconsideration for solvent loss)can be calculated as follows:W 5 0.09433t 3gwhere:W=weight of paint line,g,t=mil thickness,andg=weight per gallon,lb.6.
