This John C. Stennis Space Center (SSC) standard (SSTD) establishes the requirements for bourdon tube type pressure and vacuum gauges that are to be used in facility piping and tubing systems. NOTE: This standard applies to all new bourdon tube type pressure and vacuum gauges and to the necessary replacement of such existing gauges. This SSTD does not necessitate replacement of non-conforming gauges considered in good condition just to meet this SSTD's requirements
Specifying Signal Quality for Transmitting and Receiving Data Processing Terminal Equipments Using Serial Data Transmission at the Interface with Non-Synchronous Data Communication Equipment