Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
   3.1 Spheroidal graphite cast iron
   3.2 Graphite spheroidizing treatment
4 Designation
5 Order information
6 Manufacture
7 Requirements
   7.1 Test pieces machined from separately
        cast samples
   7.2 Test pieces machined from cast-on samples
   7.3 Test pieces machined from samples cut from a
        casting
   7.4 Classification as a function of hardness
   7.5 Graphite structure
8 Sampling
   8.1 General
   8.2 Separately cast samples
   8.3 Cast-on samples
   8.4 Samples cut from a casting
9 Test methods
   9.1 Tensile test
   9.2 Impact test
   9.3 Hardness test
10 Retests
   10.1 Need for retests
   10.2 Procedure for retests
Annexes
A (normative) Classification as a function of hardness
B (informative) Technical data of spheroidal graphite
                 cast irons
C (informative) Bibliography
D (informative) Guidance values for 0.2% proof stress for
                 test pieces machined from samples cut from
                 the castings
E (normative) Formation of test units and number of tests
Figures
Tables