This John C. Stennis Space Center (SSC) standard (SSTD) specifies materials and procedures for the fabrication, assembly, erection, maintenance, repair, cleaning, and testing of stainless steel (S/S) pipe systems at SSC with the exception of low pressure vacuum jacketed piping covered by SSTD-8070-0069-PIPE. For vacuum jacketed piping not covered by SSTD-8070-0069-PIPE, this standard may be used or referenced for requirements that govern inner piping (pipelines inside the vacuum annulus and outer vacuum piping).