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Standard Practice for Evaluating the Water Wash-Off Resistance of Traffic Paints using a Water Faucet
Automatische name übersetzung:
Standard Praxis zur Beurteilung der Wasserabwaschbeständigkeit von Straßenmarkierungsfarben mit einem Wasserhahn
NORM herausgegeben am 1.11.2013
Bezeichnung normen: ASTM D7377-09(2013)
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.11.2013
SKU: NS-38315
Zahl der Seiten: 4
Gewicht ca.: 12 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
rain resistance, traffic paint, water resistance, water wash-off, water wash-out, ICS Number Code 93.080.30 (Road equipment and installations)
Significance and Use | ||||||||||||
5.1 After waterborne traffic paints are applied to a road, airstrip, or parking lot pavement, it is important that the paint films be sufficiently hardened, coalesced, or cured so they will not be removed by rain. This practice can be used to determine the relative performance of binders and other components within traffic paint for their effect on the water-wash off resistance of the coating. Some key elements of the coating that may affect water-wash-off performance are the quality and type of latex binder, the dry time of the coating (often conducted by Test Method D711), pigment volume concentration (PVC), and the relative water sensitivity of additives (for example, pigment dispersants, and surfactants) in the coating. |
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1. Scope | ||||||||||||
1.1 A traffic paint film freshly applied to a roadway, air strip, or parking lot may be exposed to rain of varying intensities shortly after application. This practice was designed to determine the relative water wash-off resistance of an applied traffic paint film under controlled laboratory conditions using a water faucet to simulate a heavy rain. This laboratory practice can also be used to compare conventional and fast-dry waterborne traffic paints and the effects of binders and other components in traffic for their relative ability to withstand a heavy rain soon after application. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 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 and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||||||||||
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Historisch
1.7.2010
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1.11.2011
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1.7.2010
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1.7.2009
Historisch
1.4.2010
Historisch
1.1.2014
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