CSN EN IEC 63182-4

CSN EN IEC 63182-4 This part of IEC 63182 specifies the preferred range of the dimensions that are of importance for mechanical interchangeability and gives guidelines on allowable limits of surface irregularities for block-cores made of metallic magnetic powder. This document is a specification about surface irregularities which is useful in the negotiations between suppliers and users of magnetic powder-cores.
Original English text of CSN EN Standard.
The price of the Standard included all amendments and correcturs.