IPC-6012 “Rigid Printed Board Identification and Performance Specification” standard covers the identification and performance of rigid printed boards, including single-sided, double-sided and with / without blind holes / buried holes with or without plated via Metal core panels; also covers the final product and surface plating coating requirements, conductor, via / vias, acceptance test frequency and quality consistency as well as electrical, mechanical and environmental requirements. IPC-A-600 “Acceptability of Printed Boards” The standard is a guide for the acceptance of printed boards, given the observable objectives inside and outside the bare board, acceptable, nonconforming.