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Description of ASTM-A342 2012ASTM A342 / A342M - 04(2012)Standard Test Methods for Permeability of Feebly Magnetic MaterialsActive Standard ASTM A342 / A342M | Developed by Subcommittee: A06.01 Book of Standards Volume: 03.04 ASTM A342 / A342MSignificance and Use 3.1 This test method is suitable for specification acceptance, design purposes, service evaluation, regulatory statutes, manufacturing control, and research and development. 3.2 Because of the restrictions on the specimen shape and size, this test method is most often used to evaluate semifinished product before fabrication of parts. 1. Scope 1.1 These test methods cover three procedures for determination of the permeability [relative permeability] 2 of materials having a permeability not exceeding 4.0. 1.2 The test methods covered are as follows: 1.2.1 Test Method 1 is suitable for materials with permeabilities between 1.0 and 4.0. 1.2.2 Test Method 2 is suitable for measuring the permeability of paramagnetic materials having a permeability less than 1.05. 1.2.3 Test Method 3 is a suitable means of measuring the permeability of a material as less than or greater than that of calibrated standard inserts designated for use in a Low-Mu Permeability Indicator. 3 1.3 The values and equations stated in customary (cgs-emu and inch-pound) or SI units are to be regarded separately as standard. Within this standard, SI units are shown in brackets except for the sections concerning calculations where there are separate sections for the respective unit systems. 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 this 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.
ASTM Standards A341/A341M Test Method for Direct Current Magnetic Properties of Materials Using D-C Permeameters and the Ballistic Test Methods Keywords paramagnetic; permeability; permeameter; ICS Code ICS Number Code 29.030 (Magnetic materials) DOI: 10.1520/A0342_A0342M-04R12 ASTM International is a member of CrossRef. ASTM A342 / A342MThis 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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