NEN EN 12953-1 : 2012

Foreword
1 Scope
  1.1 General
  1.2 Boiler plants
  1.3 Exclusions
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Responsibilities
  5.1 Responsibility of the purchaser
  5.2 Responsibility of the manufacturer
  5.3 Responsible authority
6 Interpretations
7 Design/type appraisal of pressure parts
Annex A (informative) Information to be supplied by the
         purchaser to the manufacturer
Annex B (informative) Guidance in the use of the conformity
         assessment procedures
Annex ZA (informative) Clauses of this European Standard
         addressing essential safety requirements or other
         provisions of the Pressure Equipment Directive
Bibliography

Defines requirements for both directly fired and electrically heated boilers including Low Pressure Boilers (LPB) as well as for heat recovery boilers with a gas-side pressure not exceeding 0,5 bar of cylindrical design, constructed from carbon or carbon manganese steels by fusion welding and a design pressure not exceeding 40 bar.