NBN EN ISO 3651-2 : 1998

1 Scope
2 Purpose of the test
    2.1 Verification of the intrinsic resistance of
          the steel to intergranular corrosion
    2.2 Inspection of the efficiency of the solution
          treatment
3 Sensitization treatment
    3.1 Sensitization heat treatment
    3.2 Sensitization by welding
4 Corrosion test
    4.1 Principle
    4.2 Test pieces
    4.3 Preparation of test pieces
5 Apparatus
6 Test methods
    6.1 Method A
    6.2 Method B
    6.3 Method C
    6.4 Bend test
7 Evaluation
8 Test report
Annex A (informative) Examples of application
Annex B (informative) Comparison of commonly available
national standards and this part of ISO 3651

Defines procedures for determining the resistance to intergranular corrosion of ferritic, austenitic and ferritic-austenitic (duplex) stainless steels in media containing sulfuric acid. In addition, it defines the uses which may be assigned to the test.