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Description of ASTM-D2428 1992ASTM D2428-92Withdrawn Standard: Standard Test Method for Simulative Recirculating System Testing of Aerospace Hydraulic Fluids (Withdrawn 1997)ASTM D2428Scope 1.1 This test method covers a procedure for system evaluation of aerospace hydraulic fluids. The test method recommends control of test variables, a typical test system geometry, data to be obtained, and procedures which will assure a uniform approach to fluid screening and evaluation. Recommendations concerning specific hardware and rigid techniques have been avoided where possible to allow the test method to be used as the state-of-the-art advances. 1.2 Each agency using the test method can simulate a specific system, thus fluids can be qualified for use in applications having unique hardware and design concepts. This approach provides the test flexibility needed to meet the rapid changes in fluid requirements and also provide valuable comparative data for both users and developers of hydraulic fluids. 1.3 Since the test system was purposely generalized, it is important that the specified data be obtained in order that fluid flow dynamics can be defined. Such factors as shear rate, mass flow rate, temperature gradients, etc., must be defined for valid comparisons. 1.4 This standard does not purport to address all of the safety problems, 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.> 1.5 The values stated in metric units are to be regarded as the standard. The values given in parentheses are for information only. Keywords Aerospace fluids/propellants-hydraulic; simulative recirculating system testing,; Recirculating system testing; simulative, of aerospace hydraulic fluids,; Simulative recirculating system testing; aerospace hydraulic fluids ICS Code ICS Number Code 75.120 (Hydraulic fluids) DOI: 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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