ASTM A1054-16 PDF

Scope: 1.1 This specification covers technically important, commercially available, magnetically hard sintered ferrite permanent magnets.

1.2 Ferrite permanent magnets have residual induction B_r from 0.2 T (2000 G) up to about 0.5 T (5000 G) and intrinsic coercive field strength H_cJ8201; from 1608201;kA/m (2000 Oe) up to about 400 kA/m (5000 Oe). Their specific magnetic hysteresis behavior (demagnetization curve) can be characterized using Test Method A977/A977M.

1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to customary (cgs-emu and inch-pound) units which are provided for information only and are not considered 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 A1054-16 Referenced Document

ASTM A340 Standard Terminology of Symbols and Definitions Relating to Magnetic Testing
ASTM A977/A977M Standard Test Method for Magnetic Properties of High-Coercivity Permanent Magnet Materials Using Hysteresigraphs

2022 ASTM A1054-16(2022) Standard Specification for Sintered Ferrite Permanent Magnets
2016 ASTM A1054-16 Standard Specification for Sintered Ferrite Permanent Magnets
2014 ASTM A1054-14 Standard Specification for Sintered Ceramic Ferrite Permanent Magnets
2007 ASTM A1054-07 Standard Specification for Sintered Ceramic Ferrite Permanent Magnets