ASTM A772/A772M-00(2016)
- Standard Test Method for AC Magnetic Permeability of Materials Using Sinusoidal Current
- standard by ASTM International, 04/01/2016
- Publisher: ASTM
$20.00$39.00
1.1 This test method provides a means for determination of the impedance permeability (μz) of ferromagnetic materials under the condition of sinusoidal current (sinusoidal H) excitation. Test specimens in the form of laminated toroidal cores, tape-wound toroidal cores, and link-type laminated cores having uniform cross sections and closed flux paths (no air gaps) are used. The method is intended as a means for determining the magnetic performance of ferromagnetic strip having a thickness less than or equal to 0.025 in. [0.635 mm].
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