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ASTM F2754/F2754M-21
Standard Test Method for Measurement of Camber, Cast, Helix, and Direction of Helix of Coiled Wire
1.1This test method covers the various standard methods that are used for measuring camber, cast, helix, and helix direction. The wire may be coiled with or without a spool.
1.2This test method applies to round wire that has a diameter between 0.0127 to 4.78 mm [0.0005 to 0.188 in.]. It also applies to flat or shaped wire.
1.3This test method does not apply to superelastic nitinol wire. It does apply to the as-drawn condition of nitinol wire.
1.4This test method does not apply to the measurement of the straightness of straightened to length wire and tubing.
1.5The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
1.6This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.7This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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ASTM International [astm]
