ASTM-D7538 2023

$29.79

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

Published By	Publication Date	Number of Pages
ASTM	2023	3

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Categories: 93.080.20 - Road construction materials, ASTM

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Description

ASTM D7538-09-Reapproved2023

Active Standard: Standard Practice for Evaluating the Water Wash-Off Resistance of Traffic Paints Using an Atomizing Spray Device

ASTM D7538

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 L 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.

Keywords

rain resistance; traffic paint; water spray; water wash-off test;

ICS Code

ICS Number Code 93.080.20 (Road construction materials)

DOI: 10.1520/D7538-09R23

Additional information

Standard Title	D7538-09(2023) Standard Practice for Evaluating the Water Wash-Off Resistance of Traffic Paints Using an Atomizing Spray Device
Published Code	ASTM
Publication Date	2023
Pages Count	3
ICS Codes	93.080.20 - Road construction materials