A two sample PT set, SPE-035K provides a Chlorinated Pesticide sample as well as a BNA soil PT for analysis. For specific analytes and ranges please click the Ranges tab. All PT's are designed to fall between NELAC specified ranges. The Pesticide sample will have at least 80% of the analytes listed. The BNA sample contains a minimum of 60% of the NELAC analytes listed as well as a percentage of state specific analytes.