A comprehensive survey of the INAA of reference materials

The nature of summary reports now being prepared for issuance, summarizing the results of detailed INAA Advance Prediction Computer Program (APCP) calculations for many widely used reference materials, is discussed and illustrated. For each material, the best photopeak % _rel value (where it is10%) is shown for each of the 12 condition sets (t_i/t_d/t_c) calculated from the input elemental composition. These summary reports will be very useful to groups that use various reference materials as multi-element standards.