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Description of ASTM-E289 2004ASTM E289-04Historical Standard: Standard Test Method for Linear Thermal Expansion of Rigid Solids with InterferometryASTM E289Scope 1.1 This test method covers the determination of linear thermal expansion of rigid solids using either a Michelson or Fizeau interferometer. 1.2 For this purpose, a rigid solid is defined as a material which, at test temperature and under the stresses imposed by instrumentation, has a negligible creep, insofar as significantly affecting the precision of thermal length change measurements. 1.3 It is recognized that many rigid solids require detailed preconditioning and specific thermal test schedules for correct evaluation of linear thermal expansion behavior for certain material applications. Since a general method of test cannot cover all specific requirements, details of this nature should be discussed in the particular material specifications. 1.4 This test method is applicable to the approximate temperature range 150 to 700C. The temperature range may be extended depending on the instrumentation and calibration materials used. 1.5 The precision of measurement of this absolute method (better than 40 nm/(mK)) is significantly higher than that of comparative methods such as push rod dilatometry (for example, Test Methods D 696 and E 228) and thermomechanical analysis (for example, Test Method E 831) techniques. It is applicable to materials having low and either positive or negative coefficients of expansion (below 5 m/(mK)) and where only very limited lengths or thickness of other higher expansion coefficient materials are available. 1.6 Computer or electronic based instrumentation, techniques and data analysis systems equivalent to this test method can be used. Users of the test method are expressly advised that all such instruments or techniques may not be equivalent. It is the responsibility of the user to determine the necessary equivalency prior to use. 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. Keywords coefficient of linear thermal expansion; contraction; expansion; Fizeau interferometer; interferometry; Michelson interferometer ICS Code ICS Number Code n/a DOI: 10.1520/E0289-04 The following editions for this book are also available...This 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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