DIN EN ISO 15156-2:2015-12

National foreword
National Annex NA (informative) - Bibliography
European foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Purchasing information
6 Factors affecting the behaviour of carbon and
  low alloy steels in H[2]S-containing
  environments
7 Qualification and selection of carbon and low-alloy
  steels with resistance to SSC, SOHIC and SZC
8 Evaluation of carbon and low alloy steels for
  their resistance to HIC/SWC
9 Marking, labelling, and documentation
Annex A (normative) - SSC-resistant carbon and
        low alloy steels (and requirements and
        recommendations for the use of cast irons)
Annex B (normative) - Qualification of carbon
        and low-alloy steels for H[2]S service by
        laboratory testing
Annex C (informative) - Determination of H[2]S
        partial pressure
Annex D (informative) - Recommendations for
        determining pH
Annex E (informative) - Information that should
        be supplied for material purchasing
Bibliography

Contains requirements and recommendations for the selection and qualification of carbon and low-alloy steels for service in equipment used in oil and natural gas production and natural gas treatment plants in H[2]S-containing environments, whose failure can pose a risk to the health and safety of the public and personnel or to the environment.