There is no standard equivalent to this SAE Standard. However@ SAE J2226 is similar to and represents an extension of SAE J1998 (equivalent to ISO Standard 6622/2 TR). This SAE Standard specifies the essential dimensional features of Type B barrel faced steel rectangular piston rings. Only fully faced and inlaid coated rings are included@ consistent with current U.S. practice. The requirements of this SAE Standard apply to steel piston rings of reciprocating internal combustion engines@ up to and including 200 mm diameter and 4.5 mm width. Tolerances specified in this document represent a six sigma quality level. Rationale??SAE J2226 is being discontinued because the content of this standard is also contained in ISO 6622-2. Therefore@ to eliminate duplication and confusion in coordinating the standards between ISO and SAE@ this document will be discontinued. The SAE Piston and Ring Standards Committee will now continue to support ISO in updating the standards as appropriate.