Supplier Quality Guideline, Issue 2022….. Rev03 Page 9 of 18 The following process capability values apply to stable processes provided these are not special features: • Cmk ≥ 1.67 • Ppk ≥ 1.33 • Cpk ≥ 1.33 [...] management of VOSS informed immediately. If not otherwise arranged, the specifications of IATF 16949 apply. All products must be subjected to a material, dimension and function check according to the control