This is not ISO related directly, but I include it to show some of the complexity when you look at what and how different companies define different characteristics.
QS-9000 (now IATF 16949) Appendix C (page 87) Standard and Special Characteristics Symbols Matrix
APQP Manual
Section 1.11 (page 10) Preliminary Listing of Special Product and Process Characteristics
Appendix B (starting on page 81) - Analytical Techniques --> Characteristics Matrix
PPAP Manual
Appendix F.6 (starting on page 71) - Bulk Materials Example