ASTM D7538-09(2018) PDF

Scope: 1.1 A newly applied traffic paint film may be exposed to rain of varying intensities shortly after application. Practice D7377 describes a practice for evaluating the water wash-off resistance of traffic paints to a hard rain using a steady stream of water from a faucet at a rate of approximately 5.7 L per min. Practice D7538 is a similar practice that describes the use of an adjustable nozzle atomizing spray device to deliver a spray of water that simulates rain rates from approximately 0.05 to 0.5 L per min. This test can be used to compare conventional and fast-dry traffic paints for their relative ability to withstand rain soon after application on roadway surfaces. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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.

ASTM D7538-09(2018) Referenced Document

ASTM D1005 Standard Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micrometers*， 2020-06-01 Update
ASTM D1212 Standard Test Methods for Measurement of Wet Film Thickness of Organic Coatings*， 2020-06-01 Update
ASTM D3924 Standard Specification for Standard Environment for Conditioning and Testing Paint, Varnish, Lacquer, and Related Materials
ASTM D4414 Standard Practice for Measurement of Wet Film Thickness by Notch Gages*， 2020-06-01 Update
ASTM D562 Standard Test Method for Consistency of Paints Measuring Krebs Unit (KU) Visosity Using a Stormer-Type Viscometer
ASTM D711 Standard Test Method for No-Pick-Up Time of Traffic Paint
ASTM D7377 Standard Practice for Evaluating the Water Wash-Off Resistance of Traffic Paints using a Water Faucet*， 2023-12-01 Update
ASTM D823 Standard Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels

2023 ASTM D7538-09(2023) Standard Practice for Evaluating the Water Wash-Off Resistance of Traffic Paints Using an Atomizing Spray Device
2018 ASTM D7538-09(2018) Standard Practice for Evaluating the Water Wash-Off Resistance of Traffic Paints Using an Atomizing Spray Device
2009 ASTM D7538-09(2013) Standard Practice for Evaluating the Water Wash-Off Resistance of Traffic Paints Using an Atomizing Spray Device
2009 ASTM D7538-09 Standard Practice for Evaluating the Water Wash-Off Resistance of Traffic Paints Using an Atomizing Spray Device