Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Terminals
5 Dimensions, threads and related items
6 Other dimensions of spark-plugs and their cylinder head
housings
7 Installation tightening torque
8 Spark-plug dimensions
9 Cylinder head housings
Annex A (normative) - Spark-plugs with half thread and their
cylinder head housings
Annex B (informative) - Optional terminals for compact
spark-plugs
Annex C (informative) - Optional combination cylinder head
housing for spark-plugs with conical or flat seating
Bibliography