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  • ASTM
    A342/A342M-04(2012) Standard Test Methods for Permeability of Feebly Magnetic Materials
    Edition: 2012
    $103.58
    Unlimited Users per year

Description of ASTM-A342 2012

ASTM A342 / A342M - 04(2012)

Standard Test Methods for Permeability of Feebly Magnetic Materials

Active Standard ASTM A342 / A342M | Developed by Subcommittee: A06.01

Book of Standards Volume: 03.04




ASTM A342 / A342M

Significance 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.


2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

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 / A342M

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ASTM 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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