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Description of ASTM-D6111 2013ASTM D6111 - 13aStandard Test Method for Bulk Density And Specific Gravity of Plastic Lumber and Shapes by DisplacementActive Standard ASTM D6111 | Developed by Subcommittee: D20.20 Book of Standards Volume: 08.03 ASTM D6111Significance and Use 5.1 The specific gravity or density of a solid is a property that can be measured conveniently to follow physical changes in a sample, to indicate degree of uniformity among different sampling units or specimens, or to indicate the average density of a large item. 5.2 It is possible that variations in density of a particular plastic lumber or shapes specimen will be due to changes in crystallinity, loss of plasticizer/solvent content, differences in degree of foaming, or to other causes. It is possible that portions of a sample will differ in density because of difference in crystallinity, thermal history, porosity, and composition (types or proportions of resin, plasticizer, pigment, or filler).
Note 2 Reference is made to Test Method D1622.
5.3 Density is useful for calculating strength to weight and cost to weight ratios. 5.4 If the cross-sectional area of the specimen is required for future testing on a particular sample, it is acceptable to determine it from a specific gravity measurement, see Eq 5. 1. Scope 1.1 This test method covers the determination of the bulk density and specific gravity of plastic lumber and shapes in their as manufactured form. As such, this is a test method for evaluating the properties of plastic lumber or shapes as a product and not a material property test method. 1.2 This test method is suitable for determining the bulk specific gravity or bulk density by immersion of the entire item or a representative cross section in water. This test method involves the weighing of a one piece specimen in water, using a sinker with plastics that are lighter than water. This test method is suitable for products that are wet by, but otherwise not affected by water for the duration of the test. 1.3 Plastic lumber and plastic shapes are currently made predominately from recycled plastics. However, this test method would also be applicable to similar manufactured plastic products made from virgin resins where the product is non-homogeneous in the cross-section. 1.4 The values stated in SI units are to be regarded as standard. 1.5 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.
Note 1 There is no known ISO equivalent to this test method.
ASTM Standards D618 Practice for Conditioning Plastics for Testing D883 Terminology Relating to Plastics D1622 Test Method for Apparent Density of Rigid Cellular Plastics D1898 Practice for Sampling of Plastics D5033 Guide for Development of ASTM Standards Relating to Recycling and Use of Recycled Plastics D6108 Test Method for Compressive Properties of Plastic Lumber and Shapes E1 Specification for ASTM Liquid-in-Glass Thermometers E12 Terminology Relating to Density and Specific Gravity of Solids, Liquids, and Gases E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method Keywords density; plastic lumber; plastic shapes; recycled plastic; specific gravity; ICS Code ICS Number Code 83.140.01 (Rubber and plastic products in general) DOI: 10.1520/D6111 ASTM International is a member of CrossRef. ASTM D6111This 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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