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About This Item

 

Full Description

This SAE Recommended Practice describes the equipment and procedures used in obtaining preignition ratings of spark plugs.

The spark plug preignition ratings obtained with the equipment and procedure specified herein are useful for comparative purposes and are not to be considered as absolute values since different numerical values may be obtained in different laboratories.

 

Document History

  1. SAE J549_202006


    Preignition Rating of Spark Plugs (Stabilized: Jun 2020)

    • Most Recent
  2. SAE J549_201503

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    Preignition Rating of Spark Plugs

    • Historical Version
  3. SAE J549_201503


    Preignition Rating of Spark Plugs

    • Historical Version
  4. SAE J549_201303


    Preignition Rating of Spark Plugs (Stabilized: Mar 2013)

    • Historical Version
  5. SAE J 549


    Preignition Rating of Spark Plugs

    • Historical Version