I think that this is not a certifiable standard by Cettification Bodies. It is a kind of guidelines for presentation and identification of periodicals. If a periodical (not newspaper or book) use these guidelines for e.g title information, enumeration, layout and pagination etc, you can mention that this publication "takes into consideration the specifications of ISO 8 : 2019" and you might also have a contact with a Certification Body to provide you with a written reassurance but not with a certification of conformity as an accredited body.