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Description of ASTM-B428 2009ASTM B428 - 09Standard Test Method for Angle of Twist in Rectangular and Square Copper and Copper Alloy TubeActive Standard ASTM B428 | Developed by Subcommittee: B05.06 Book of Standards Volume: 02.01 ASTM B428Significance and Use The rectangular or square copper alloy tube covered by this test method may be used in applications in which control of twist is important to proper fit in final assembly and to minimize rework to bring the tube into compliance. It is recognized that the amount of twist, in degrees, per increment of length can change as a result of the weight of the product and its length during measurement. This test method provides a procedure for measuring the twist in square and rectangular copper and copper alloy tubes as a measure of the deviation from straightness. This test method allows the purchaser and supplier or manufacturer to inspect square and rectangular copper and copper alloy tube with a standard technique that provides acceptable twist in delivered tubes. 1. Scope 1.1 This test method establishes the requirements for the determination of the angle of twist in rectangular and square copper and copper alloy tube. 1.2 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard. 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 determine the applicability of regulatory limitations prior to use.
ASTM Standards B846 Terminology for Copper and Copper Alloys Keywords angle of twist; copper; copper alloy; rectangular tube; square tube; twist; Rectangular Cu tube; Square Cu/Cu alloy tube; Twist; Angle of twist; Copper alloy tube; Copper tube; ICS Code ICS Number Code 23.040.15 (Non-ferrous metal pipes) DOI: 10.1520/B0428-09 ASTM International is a member of CrossRef. ASTM B428The 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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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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