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Description of ASTM-D4242 2013ASTM D4242 - 07(2013)Standard Test Method for Inclined Plate Flow for Thermosetting Coating PowdersActive Standard ASTM D4242 | Developed by Subcommittee: D01.51 Book of Standards Volume: 06.02 ASTM D4242Significance and Use 5.1 This test method is useful for selecting coating powders of similar characteristics of melt flow under minimal shear. It is not recommended as an absolute measurement, but rather as a comparative measurement of samples on the same panel measured at the same time. 1. Scope 1.1 This test method specifies a method for determining the flow characteristics of a fused thermosetting coating powder down a plane inclined at a set angle to the horizontal. The test gives an indication of the degree of melt flow that may occur during the curing of the coating powder. This characteristic contributes to the coherence of the coating, to its surface appearance and to the degree of coverage over sharp edges (see Test Method D2967 ), however, it should not be used as the sole factor for judgment. The test acts as a useful method for checking for batch to batch variation in the behavior of a given coating powder. Correlation between the results from coating powders of differing composition is not to be expected. This method is unlikely to yield meaningful results with coating powders which have gel times of less than one minute at the test temperature (see Test Method D4217 ). Oven drafts, angle of inclination and pellet variations significantly affect results making inter-lab reproducibility somewhat difficult to correlate. 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 to determine the applicability of regulatory limitations prior to use.
ASTM Standards D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement D2967 Test Method for Corner Coverage of Powder Coatings D4217 Test Method for Gel Time of Thermosetting Coating Powder D5965 Test Methods for Specific Gravity of Coating Powders Keywords coating powder; pellet flow; pill flow; plate flow; powder coating; thermosetting; ICS Code ICS Number Code 83.080.10 (Thermosetting materials) DOI: 10.1520/D4242 ASTM International is a member of CrossRef. ASTM D4242This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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