SAE J549A-1970
PREIGNITION RATING OF SPARK PLUGS

Standard No.

SAE J549A-1970

Release Date

1970

Published By

Society of Automotive Engineers (SAE)

Status

Be replaced 2013-02

Replace By

SAE J549-1982

Latest

SAE J549-2020

SAE J549A-1970 history

• 2020 SAE J549-2020 Preignition Rating of Spark Plugs
• 2015 SAE J549-2015 Preignition Rating of Spark Plugs
• 2013 SAE J549-2013 Preignition Rating of Spark Plugs
• 1999 SAE J549-1999 Preignition Rating of Spark Plugs
• 1995 SAE J549-1995 Preignition Rating of Spark Plugs (March 1995)
• 1990 SAE J549-1990 PREIGNITION RATING OF SPARK PLUGS
• 1982 SAE J549-1982 Preignition Rating of Spark Plugs
• 1970 SAE J549A-1970 PREIGNITION RATING OF SPARK PLUGS