ISO 7207-1: Implants for surgery - Components for partial and total knee joint prostheses - Part 1: Classification, definitions and designation of dimensions
ISO 7207-2: Implants for surgery - Components for partial and total knee joint prostheses - Part 2: Articulating surfaces made of metal, ceramic and plastic materials.
ISO 21536: Non-active surgical implants - Joint replacement implants - Specific requirements for knee-joint replacement implants
ASTM F2791-15: Standard Guide for Assessment of Surface Texture of Non-Porous Biomaterials in Two Dimensions
ISO 7207-2 describes the requirements on the surfaces of knee joint prostheses. These requirements are also partially given in ISO 21536. In addition, ISO 21536 lists further testing requirements.