Throughout the country, there is a vast amount of source test data which has been compiled in recent years. Up until now, these data have been of little use to anyone needing a large amount of data, because they are stored in so many different places and formats. The Source Test Data (SOTDAT) System is a useful solution to that problem. The SOTDAT System permits the gathering of source test data from many places and their storage in a computer-accessible data bank in a common format. SOTDAT is designed so that each record describes, in detail, one run of a stack test. Variables included are most of those which enter into the normal stack test calculations, as well as some which will be necessary to future users of SOTDAT. Information stored in SOTDAT contains an adequate number of source parameters and concentrates heavily on data describing a specific test run. Since each SOTDAT record is keyed to a record in the National Emissions Data System (NEDS), any required source parameters are readily available from a NEDS listing. An exception to this will exist in the case where test data are coded anonymously in order to protect the confidentiality of the data.

EPA project officer: Gregory Bujewski. Prepared by TRW, Transportation and Environmental Engineering Operations. "July 1975." "EPA-450/3-75-070." PB-245052.

Throughout the country, there is a vast amount of source test data which has been compiled in recent years. Up until now, these data have been of little use to anyone needing a large amount of data, because they are stored in so many different places and formats. The Source Test Data (SOTDAT) System is a useful solution to that problem. The SOTDAT System permits the gathering of source test data from many places and their storage in a computer-accessible data bank in a common format. SOTDAT is designed so that each record describes, in detail, one run of a stack test. Variables included are most of those which enter into the normal stack test calculations, as well as some which will be necessary to future users of SOTDAT. Information stored in SOTDAT contains an adequate number of source parameters and concentrates heavily on data describing a specific test run. Since each SOTDAT record is keyed to a record in the National Emissions Data System (NEDS), any required source parameters are readily available from a NEDS listing. An exception to this will exist in the case where test data are coded anonymously in order to protect the confidentiality of the data. For a complete list and description of the SOTDAT variables, see the Augu$t 1793 National Air Data Branch publication "Source Test Data System (SOTDAT" which describes in detail each data element.