Historical
SAE AS 708A-1990 (SAE AS708A-1990)
Top Visual Quality (TVQ) O-Ring Packings and Gaskets - Surface Inspection Guide and Acceptance Standard ( Reaffirmed: Dec 1994 Dec 2003 )
This standard establishes the inspection requirements and acceptance standards for optimum surface finish O-ring packings and gaskets. (This is not an O-ring specification per se). This standard must be used in conjunction with an O-ring drawing and/or material specification. This standard is to be specified only where stringent performance requirements are necessary.
Society of Automotive Engineers [sae]