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Last Updated: Dec 31, 2010
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ASTM D1505-03
Standard Test Method for Density of Plastics by the Density-Gradient Technique
Standard Test Method for Density of Plastics by the Density-Gradient Technique
D1505-03
ASTM|D1505-03|en-US
Standard Test Method for Density of Plastics by the Density-Gradient Technique
Standard
D1505 Standard Test Method for Density of Plastics by the Density-Gradient Technique>
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BOS Vol. 08.01 Committee D20
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Significance and Use
The density of a solid is a conveniently measurable property which is frequently useful as a means of following physical changes in a sample, as an indication of uniformity among samples, and a means of identification.
This test method is designed to yield results accurate to better than 0.05 %.
Note 3—Where accuracy of 0.05 % or better is desired, the gradient tube shall be constructed so that vertical distances of 1 mm shall represent density differences no greater than 0.0001 g/cm.3 The sensitivity of the column is then 0.0001 g/cm3·mm. Where less accuracy is needed, the gradient tube shall be constructed to any required sensitivity.
Scope
1.1 This test method covers the determination of the density of solid plastics.
1.2 This test method is based on observing the level to which a test specimen sinks in a liquid column exhibiting a density gradient, in comparison with standards of known density.
Note 1—The comparable ISO document is ISO 1183-2. There has not been any data generated to date comparing the results of the ISO method with this method.
1.3 The values stated in SI units are to be regarded as the standard.
1.4 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.