Significance and Use 5.1 This test method is used to measure the apparent viscosity of thermoplastic pavement marking at elevated temperatures. Elevated temperature viscosities of thermoplastic pavement marking may be related to the properties of coatings, adhesives, and composite thermoplastics. This method is helpful in determining the flow properties which can be used in determining processability when applied to the road surface. 5.2 Thermoplastic pavement markings may be applied to the road surface in several different ways. Typical methods of application are screed extrude, ribbon extrude, thin film spray, and standard spray. Proper application depends on the viscosity of the thermoplastic material at application temperatures for the method being used. Thin-line applied thermoplastic pavement marking, for example, requires a relatively lower viscosity. Screed extrude applied thermoplastic requires a higher viscosity. 5.3 Materials of the type described in this procedure may be non-Newtonian, and as such, the apparent viscosity will be a function of shear rate under the conditions of test. Although the viscometer described in this test method operates under conditions of relatively low shear rate, differences in shear effect can exist depending upon the spindle and rotational speed conditions selected for the test program. Comparisons between non-Newtonian viscosity values should be made only for measurements made with similar viscometers under conditions of equivalent shear. For this method, “torpedo” spindles are recommended. Spindles considered torpedo spindles are ~1-in. long and come in many diameters with a 45° conical bottom. A diameter that is half the diameter of the thimbles used is recommended. If large glass beads are used in the pavement marking formulation, a smaller diameter spindle may be needed so the beads do not cause an impedance of the spindle due to a jamming between the inside wall of the thimble and the spindle.Scope 1.1 This test method covers the sample preparation and testing procedure needed to determine the apparent viscosity of a thermoplastic pavement marking formulation at elevated temperatures to the specimen. 1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are customary units and are provided as a courtesy to the user. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

American National Standards Institute Inc.

Go to ASTM D8162 at ASTM.org

Add your thoughts about the standard.

1375 - Demolition Materials (549) 1377 - Cartridge and Propellant Actuated Devices and Components (524) 4720 - Hose and Flexible Tubing (552) 4730 - Hose, Pipe, Tube, Lubrication, and Railing Fittings (1823) 5120 - Hand Tools, Nonedged, Nonpowered (1124) 5305 - Screws (781) 5306 - Bolts (996) 5310 - Nuts and Washers (864) 5330 - Packing and Gasket Materials (583) 5340 - Hardware, Commercial (953) 5905 - Resistor (753) 5910 - Capacitors (783) 5930 - Switches (1012) 5935 - Connectors, Electrical (4357) 5940 - Lugs, Terminals, and Terminal Strips (564) 5945 - Relays and Solenoids (733) 5950 - Coils and Transformers (856) 5960 - Electron Tubes and Associated Hardware (1630) 5961 - Semiconductor Devices and Associated Hardware (707) 6145 - Wire and Cable, Electrical (1629) 6240 - Electric Lamps (662) 6505 - Drugs and Biologicals (1343) 6515 - Medical and Surgical Instruments, Equipment, and Supplies (1907) 6520 - Dental Instruments, Equipment, and Supplies (790) 6530 - Hospital Furniture, Equipment, Utensils, and Supplies (745) 6610 - Flight Instruments (540) 6625 - Electrical and Electronic Properties Measuring and Testing Instruments (1241) 6640 - Laboratory Equipment and Supplies (1187) 6810 - Chemicals (1114) 8010 - Paints, Dopes, Varnishes, and Related Products (2046) 8030 - Preservative and Sealing Compounds (554) 8140 - Ammunition and Nuclear Ordnance Boxes, Packages and Special Containers (797) 8305 - Textile Fabrics (910) 8415 - Clothing, Special Purpose (660) 8455 - Badges and Insignia (3093) 8915 - Fruits and Vegetables (531) 9330 - Plastics Fabricated Materials (759) FACR (1647) ISDA (1776) ISDD (786) ISDF (1827) ISDN (581) MISC (1045) PACK (539) SESS (581)
Aerospace Material (225) Aircraft Air Conditioning, Heating, and Pressurizing Equipment (334) Aircraft Hydraulic, Vacuum, and De-icing System Components (263) Ammunition, 75mm through 125mm (192) Ammunition, over 30mm up to 75mm (208) Ammunition, through 30mm (349) Analytical Chemistry (180) Bombs (192) Building (414) Bulk Explosives (261) Cartridge and Propellant Actuated Devices and Components (524) Consumer Product Evaluation (267) Copper (192) Demolition Materials (549) Electrical and Magnetic Conductor (162) Electronics (153) Environmental Toxicology (187) Fire Control Computing Sights and Devices (338) Fire Control Radar Equipment, except Airborne (197) Fuzes and Primers (454) Geotechnical Engineering (217) GUN (640) Land Mines (276) Medical Device and Implant (427) Military Chemical Agents (156) Miscellaneous Aircraft Accessories and Components (231) Miscellaneous Fire Control Equipment (216) Nondestructive Testing (246) Nonferrous Metal and Nonferrous Alloy (367) Nuclear Technology (274) Optical Sighting and Ranging Equipment (451) Paint and Related Coating (456) Parachutes; Aerial Pick Up, Delivery, Recovery Systems; and Cargo Tie Down Equipment (324) Petroleum (378) Plastic Pipe (248) Pyrotechnics (175) Road and Paving (177) Rockets, Rocket Ammunition and Rocket Components (368) Rubber (166) Security System Pedestrian and Walkway Safety (157) Specialized Test and Handling Equipment, Nuclear Ordnance (150) Sports and Recreation (316) Steel (908) Torpedos and Components, Inert (258) (621)