ISO-6627 Complete Document History
Internal combustion engines - Piston rings - Expander/rail oil-control rings

Complete Current Edition:
   3RD EDITION - Expander/rail oil-control rings - Feb. 1, 2022

Obsolete Revision Information:
   2ND EDITION - Internal combustion engines - Piston rings - Expander/segment oil-control rings - Aug. 1, 2011
   1ST EDITION - Piston rings -- Expander/segment oil-control rings - Sept. 15, 2000
   1992 EDITION - Piston rings -- Expander/segment oil control rings - Feb. 15, 1992