Question: Is the IPC’s J-STD-001 going to be replacing or taking a precedence over the NASA STD 8739.4?
Answer: We are currently working on a space segment of the 001 document and it is identified as J-STD-001FS Space Applications Electronic Hardware Addendum to IPC J-STD-001F Requirements for Soldered electrical and Electronic Assemblies.
Whether or not this is going to happen is still in the air and depends upon the NASA folks adopting the 001 as the replacement document. From what I understand these discussions are ongoing,but the results are unknown at this time.