IPC-2221 Appendix A - Version 4 IPC-2221 Appendix A Version 4.0 April 2022 Document #: IPC-2221 Revision Original Version Product Type Appendix Released: 07/26/2023 Language English Current Revision Appendix A to IPC-2221 provides an overview of designs, limitations and intended uses for IPC-2221 test coupons used for conformance evaluations to IPC-601X printed board performance specifications.
