CEN/TC 54/WG 51 - A - Overall co-ordination, scope of standard and vessel classification

This document defines the terms, definitions, quantities, symbols and units that are used throughout the EN 13445 series and gives general information on the design and manufacturing of vessels under this standard.
It also contains instructions on how to use the standard (Annex A) as well as an index which covers the whole standard (Annex B). This information is aimed to aid users of the EN 13445 series.
This document applies to unfired pressure vessels with a maximum allowable pressure greater than 0,5 bar gauge but may be used for vessels operating at lower pressures, including vacuum.
This document is not applicable to pressure vessels of the following types:
- vessels of riveted construction;
- vessels of lamellar cast iron or any other materials not included in Parts 2, 6, or 8 of the standard;
- multilayered, autofrettaged or pre-stressed vessels.
This document can be applied to the following pressure vessels, provided that account is taken of additional and/or alternative requirements resulting from the hazard analysis and from rules or instructions specific for:
- transportable vessels;
- items specifically designed for nuclear use;
- pressure vessels with a risk of overheating.
NOTE EN 14222 covers electrically fired boilers made from stainless steel and can be used as an example of additional requirements for such vessels.
Other European standards apply to industrial piping (EN 13480 series) and to water tube and shell boilers (EN 12952 series and EN 12953 series).

This European Standard specifies terms and definitions to be used for pressure equipment and assemblies within the scope of European Directives on pressure equipment.
NOTE   It can be applied to other pressure equipment.

This European Standard specifies the basic quantities, symbols and units to be used for pressure equipment and assemblies addressed by the European Directive 97/23/EC.

This CEN Technical Report details the conformance of the EN 13445 series for "Unfired pressure vessels" to ISO 16528-1 "Boilers and pressure vessels - Part 1: Performance requirements".
This Technical Report applies to vessels of steel construction.
It is envisaged that future editions will include spheroidal graphite cast iron and aluminium vessels.

This European Standard specifies terms and definitions to be used for pressure equipment and assemblies within the scope of European Directives on pressure equipment.
It may be applied to other pressure equipment.

This European Standard defines the terms, definitions, quantities, symbols and units that are used throughout the EN 13445 series and gives general information on the design and manufacturing of vessels under this standard.
It also contains instructions on how to use the standard (Annex A) as well as an index which covers the whole standard (Annex B). This information is aimed to aid users of the EN 13445 series.
This European Standard applies to unfired pressure vessels with a maximum allowable pressure greater than 0,5 bar gauge but may be used for vessels operating at lower pressures, including vacuum.
This European Standard is not applicable to pressure vessels of the following types:
-   vessels of riveted construction;
-   vessels of lamellar cast iron or any other materials not included in Parts 2, 6, or 8 of the standard;
-   multilayered, autofrettaged or pre-stressed vessels.
This European standard can be applied to the following pressure vessels, provided that account is taken of additional and/or alternative requirements resulting from the hazard analysis and from rules or instructions specific for:
-   transportable vessels;
-   items specifically designed for nuclear use;
-   pressure vessels with a risk of overheating.
NOTE   EN 14222 covers electrically fired boilers made from stainless steel and can be used as an example of additional requirements for such vessels.
Other European standards apply to industrial piping (EN 13480 series) and to water tube and shell boilers (EN 12952 series and EN 12953 series).

This part of this European Standard defines the terms, definitions, quantities, symbols and units that are used throughout the EN 13445. It also contains instructions on how to use the standard (Annex A) as well as an index which covers the whole standard (Annex B). This information is aimed to aid the user of the EN 13445.
This European Standard applies to unfired pressure vessels with a maximum allowable pressure greater than 0,5 bar gauge but may be used for vessels operating at lower pressures, including vacuum.
NOTE   The selection, application and installation of safety related accessories intended to protect pressure vessels during operation are covered in EN 764-7.
This European Standard is not applicable to pressure vessels of the following types:
-   vessels of riveted construction;
-   vessels of lamellar cast iron or any other materials not included in parts 2, 6, or 8 of the standard;
-   multilayered, autofrettaged or pre-stressed vessels;
This European standard may be applied to the following vessels, provided that account is taken of additional and/or alternative requirements resulting from the hazard analysis and from rules or instructions specific for:
-   transportable vessels;
-   items specifically designed for nuclear use;
-   pressure vessels with a risk of overheating
Other European standards apply to industrial piping (EN 13480) and to water tube and shell boilers (EN 12952 and EN 12953).

This European Standard specifies terms and definitions to be used for pressure equipment and assemblies within the scope of European Directives on pressure equipment.
It may be applied to other pressure equipment.

Addition of an informative Annex X compiling Annexes ZA of EN 13445-1 to EN 13445-5.

This part of this European Standard defines the terms, definitions, quantities, symbols and units that are used
throughout the EN 13445. It also contains instructions on how to use the standard (Annex A) as well as an index
which covers the whole standard (Annex B). This information is aimed to aid the user of the EN 13445.
This European Standard applies to unfired pressure vessels with a maximum allowable pressure greater than 0,5
bar gauge but may be used for vessels operating at lower pressures, including vacuum.
NOTE The selection, application and installation of safety related accessories intended to protect pressure vessels during
operation are covered in EN 764-7.
This European Standard is not applicable to pressure vessels of the following types:
- vessels of riveted construction;
- vessels of lamellar cast iron or any other materials not included in parts 2, 6, or 8 of the standard;
- multilayered, autofrettaged or pre-stressed vessels;
This European standard may be applied to the following vessels, provided that account is taken of additional and/or
alternative requirements resulting from the hazard analysis:
- transportable vessels;
- items specifically designed for nuclear use;
- pressure vessels with a risk of overheating
Other European standards apply to industrial piping (EN 13480) and to water tube and shell boilers (EN 12952 and
12953).

This Part of this European Standard defines the terms, definitions, symbols and units that are used throughout the EN 13445.
This Part of EN 13445 also gives guidelines on the principles on which each part of the standard has been based. This information is aimed to aid the user of the EN 13445. This European Standard applies to unfired pressure vessels subject to a maximum allowable pressure greater than 0,5 bar gauge but may be used for vessels operating at lower pressures, including vacuum.
This European Standard applies to maximum allowable temperatures for which creep effects need not be considered, i.e. for maximum allowable temperatures for which the corresponding maximum calculation temperature renders a relevant proof strength smaller than the 100 000 h creep rupture strength. For ferritic steels the temperature limit corresponds to calculation temperatures below approximately 380 °C
In EN13445-3:2002 two methods of Design by Analysis (DBA) are given in Annex B and Annex C respectively. Both of these are normative. However Parts 2, 4 and 5 of this edition of the standard do not include provision within their respective areas of responsibility for vessels designed using Design by Analysis - Direct Route (DBA) of Annex B of EN13445-3
NOTE   The selection, application and installation of safety related accessories intended to protect pressure vessels during operation are covered in prEN 764-7.