If the “Platings” cell under TableB specifically requests PPTH or EPPTH for BDMSA or DOMSA Sets, then each of these requested features should be present in the test samples. If only NPPTH are used in production, then 4 NPPTH must be present on the samples. However, if NPPTH, PPTH and EPPTH have been requested, then at least one of each must be included. Any of the remaining 4 PTHS, can be the feature chosen at your discretion. When submitting samples for testing, please let us know what type(s) of PTHS have been included in the samples and the location of each.