1997L0023 — EN — 29.07.1997 — 000.001 — 1
This document is meant purely as a documentation tool and the institutions do not assume any liability for its contents
►B DIRECTIVE97/23/ECOFTHEEUROPEANPARLIAMENTANDOFTHECOUNCIL
of29May1997
ontheapproximationofthelawsoftheMember Statesconcerningpressureequipment
(OJ L 181, 9.7.1997, p. 1)
Corrected by:
►C1Corrigendum, OJ L 265, 27.9.1997, p. 110 (97/23/EC)
▼B
DIRECTIVE 97/23/EC OF THE EUROPEAN PARLIAMENT
ANDOFTHECOUNCIL
of29May1997
ontheapproximationofthelawsoftheMemberStatesconcerning
pressureequipment
THE EUROPEAN PARLIAMENT AND THE COUNCIL OF THE
EUROPEAN UNION,
Having regard to the Treaty establishing the European Community, and
in particular Article 100a thereof,
Having regard to the proposals from the Commission (1),
Having regard to the Opinion of the Economic and Social
Committee (2),
Acting in accordance with the procedure laid down in Article 189b of
the Treaty (3), in the light of the joint text approved by the Conciliation
Committee on 4 February 1997,
1.Whereas the internal market is an area without internal frontiersin which the free movement of goods, persons, services and
capital is ensured;
2.Whereas there are differences in the content and scope of thelaws, regulations and administrative provisions in force in theMember States with regard to the safety and protection of healthof persons and, where appropriate, domestic animals or property,where pressure equipment not covered by present Communitylegislation is concerned; whereas the certification and inspection
procedures for such equipment differ from one Member State to
another; whereas such disparities may well constitute barriers totrade within the Community;
3.Whereas the harmonization of national legislation is the onlymeans of removing these barriers to free trade; whereas thisobjective cannot be achieved satisfactorily by the individualMember States; whereas this Directive only lays down indispen-sable requirements for the free circulation of the equipment to
which it is applicable;
4.Whereas equipment subject to a pressure of not more than 0,5bar does not pose a significant hazard due to pressure; whereas
there should not therefore be any obstacle to its free movementwithin the Community; whereas this Directive applies to equip-ment subject to a maximum allowable pressure PS exceeding 0,5bar;
5.Whereas this Directive relates also to assemblies composed ofseveral pieces of pressure equipment assembled to constitute anintegrated and functional whole; whereas these assemblies may
range from simple assemblies such as pressure cookers to
complex assemblies such as watertube boilers; whereas, if themanufacturer of an assembly intends it to be placed on themarket and put into service as an assembly — and not in theform of its constituent non-assembled elements — that assemblymust conform to this Directive; whereas, on the other hand, this
Directive does not cover the assembly of pressure equipment on
the site and under the responsibility of the user, as in the case ofindustrial installations;
6.Whereas this Directive harmonizes national provisions onhazards due to pressure; whereas the other hazards which this1997L0023 — EN — 29.07.1997 — 000.001 — 2
(1) OJ No C 246, 9. 9. 1993, p. 1 and OJ No C 207, 27. 7. 1994, p. 5.
(2) OJ No C 52, 19. 2. 1994, p. 10.
(3) Opinion of the European Parliament of 19 April 1994 (OJ No C 128, 9. 5.
1994, p. 61), common position of the Council of 29 March 1996 (OJ No C
147, 21. 5. 1996, p. 1), Decision of the European Parliament of 17 July 1996
(OJ No C 261, 9. 9. 1996, p. 68). Council Decision of 17 April 1997.
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equipment may present accordingly may fall within the scope of
other Directives dealing with such hazards; whereas, however,pressure equipment may be included among products covered
by other Directives based on Article 100a of the Treaty; whereas
the provisions laid down in some of those Directives deal withthe hazard due to pressure; whereas those provisions are consid-ered adequate to provide appropriate protection where the hazarddue to pressure associated with such equipment remains small;
whereas, therefore, there are grounds for excluding such equip-
ment from the scope of this Directive;
7.Whereas, for pressure equipment covered by internationalConventions, transport and pressure hazards are due to be dealt
with as soon as possible by forthcoming Community Directives
based on such Conventions or by supplements to existing Direc-tives; whereas such equipment is accordingly excluded from thescope of this Directive;
8.Whereas certain types of pressure equipment, although subject toa maximum allowable pressure PS higher than 0,5 bar, do notpresent any significant hazard due to pressure, and therefore thefreedom of movement of such equipment in the Communityshould not be hindered if it has been legally manufactured or
placed on the market in a Member State; whereas it is not neces-
sary in order to ensure free movement of such equipment toinclude it in the scope of this Directive; whereas consequentlyit is expressly excluded from its scope;
9.Whereas other pressure equipment subject to a maximum allow-able pressure higher than 0,5 bar and presenting a significanthazard due to pressure, but in respect of which free movementand an appropriate level of safety are guaranteed, is excludedfrom the scope of this Directive; whereas such exclusionsshould, however, be regularly reviewed in order to ascertain
whether it is necessary to take action at Union level;
10.Whereas regulations to remove technical barriers to trade must
follow the new approach provided for in the Council Resolution
of 7 May 1985 on a new approach to technical harmonization
and standards (1), which requires a definition of the essential
requirements regarding safety and other requirements of societywithout reducing existing, justified levels of protection withinthe Member States; whereas that Resolution provides that avery large number of products be covered by a single Directive
in order to avoid frequent amendments and the proliferation of
Directives;
11.Whereas the existing Community Directives on the approxima-tion of the laws of the Member States relating to pressure
equipment have made positive steps towards removing barriers
to trade in this area; whereas those Directives cover that sectoronly to a minor extent; whereas Council Directive 87/404/EECof 25 June 1987 on the harmonization of the laws of the MemberStates relating to simple pressure vessels (
2) is the first case of
application of the new approach to the sector of pressure equip-
ment; whereas the present Directive will not apply to the areacovered by Directive 87/404/EEC; whereas, no later than threeyears after the present Directive enters into force, a review willbe carried out of the application of Directive 87/404/EEC inorder to ascertain the need for the integration thereof into the
present Directive;
12.Whereas the framework Directive, Council Directive 76/767/
EEC of 27 July 1976 on the approximation of the laws of theMember States relating to common provisions for pressure1997L0023 — EN — 29.07.1997 — 000.001 — 3
(1) OJ No C 136, 4. 6. 1985, p. 1.
(2) OJ No L 220, 8. 8. 1987, p. 48. Directive as last amended by Directive 93/
68/EEC (OJ No L 220, 30. 8. 1993, p. 1).
▼B
vessels and methods for inspecting them (1) is optional; whereas
it provides for a procedure for the bilateral recognition of testingand certification of pressure equipment which did not operate
satisfactorily and which therefore must be replaced by effective
Community measures;
13.Whereas the scope of this Directive must be based on a generaldefinition of the term ‘pressure equipment’ so as to allow for thetechnical development of products;
14.Whereas compliance with the essential safety requirements is
necessary in order to ensure the safety of pressure equipment;
whereas those requirements have been subdivided into generaland specific requirements which must be met by pressure equip-ment; whereas in particular the specific requirements areintended to take account of particular types of pressure equip-
ment; whereas certain types of pressure equipment in categories
III and IV must be subject to a final assessment comprising finalinspection and proof tests;
15.Whereas Member States should be in a position to allow theshowing at trade fairs of pressure equipment which is not yet inconformity with the requirements of this Directive; whereas,
during demonstrations, appropriate safety measures must be
taken in accordance with the general safety rules of the MemberState concerned to ensure the safety of persons;
16.Whereas in order to ease the task of demonstrating compliancewith the essential requirements, standards harmonized atEuropean level are useful, especially with regard to the design,
manufacture and testing of pressure equipment, compliance
with which enables a product to be presumed to meet the saidessential requirements; whereas standards harmonized atEuropean level are drawn up by private bodies and must retaintheir non-mandatory status; whereas, for this purpose, theEuropean Committee for Standardization (CEN) and the
European Committee for Electrotechnical Standardization
(Cenelec) are recognized as being the bodies that are competentto adopt harmonized standards that follow the general guidelinesfor cooperation between the Commission and those two bodiessigned on 13 November 1984;
17.Whereas, for the purposes of this Directive, a harmonized stan-
dard is a technical specification (European standard or
harmonization document) adopted by one or other of thosebodies, or by both, at the request of the Commission pursuantto Council Directive 83/189/EEC of 28 March 1983 layingdown a procedure for the provision of information in the field
of technical standards and regulations (
2) and in accordance
with the general guidelines referred to above; whereas, in rela-tion to standardization, it would be advisable for theCommission to be assisted by the Committee set upp ursuant toDirective 83/189/EEC; whereas the Committee will, if necessary,consult technical experts;
18.Whereas manufacturing of pressure equipment calls for the utili-zation of safe materials; whereas in the absence of harmonizedstandards it is useful to define the characteristics of the materialsintended for repeated use; whereas this definition is establishedby European approvals for materials, such approvals beingissued by one of the notified bodies specifically designated for
that task; whereas the materials conforming to the European
approvals shall be presumed to satisfy the essential requirementsof this Directive;1997L0023 — EN — 29.07.1997 — 000.001 — 4
(1) OJ No L 262, 27. 9. 1976, p. 153. Directive as last amended by the 1994
Act of Accession.
(2) OJ No L 109, 26. 4. 1983, p. 8. Directive at last amended by the 1994 Act
of Accession.
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19.Whereas, in view of the nature of the hazards involved in the use
of pressure equipment it is necessary to establish procedures for
assessing compliance with the basic requirements of the Direc-tives; whereas these procedures must be devised in the light ofthe level of danger which is inherent in the pressure equipment;whereas, therefore, for each category of pressure equipmentthere must be an adequate procedure or a choice between
different procedures of equivalent stringency; whereas the proce-
dures adopted are as required by Council Decision 93/465/EECof 22 July 1993 concerning the modules for the various phasesof the conformity assessment procedures and the rules for theaffixing and use of the CE conformity marking, which are
intended to be used in the technical harmonization Directives (
1);
whereas the details added to these procedures are justified by thenature of the verification required for pressure equipment;
20.Whereas Member States should be in a position to authorize userinspectorates to carry out certain tasks for conformity assessmentin the framework of this Directive; whereas for that purpose thisDirective sets out criteria for the authorization of user inspecto-
rates by Member States;
21.Whereas, under the conditions laid down by this Directive,
certain procedures for conformity assessment may require eachitem to be inspected and tested by a notified body or a userinspectorate as part of the final assessment of the pressure equip-ment; whereas in other cases provision should be made to ensure
that the final assessment may be monitored by a notified body
by means of unexpected visits;
22.Whereas pressure equipment will, as a general rule, bear the CEmarking affixed either by the manufacturer or by his authorizedrepresentative established within the Community; whereas theCE marking means that the pressure equipment complies with
the provisions of this Directive and those of other applicable
Community directives on CE marking; whereas for pressureequipment defined in this Directive which presents only a minorpressure hazard and for which certification procedures are there-fore not justified, the CE marking will not be affixed;
23.Whereas it is appropriate that the Member States, as provided for
by Article 100a of the Treaty, may take provisional measures to
limit or prohibit the placing on the market, putting into serviceand use of pressure equipment in cases where it presents a parti-cular risk to the safety of persons and, where appropriate,domestic animals or property, provided that the measures aresubject to a Community control procedure;
24.Whereas the addressees of any decision taken under this Direc-tive must be aware of the reasons behind that decision and themeans of appeal open to them;
25.Whereas it is necessary to lay down a transitional arrangementenabling pressure equipment manufactured in compliance withthe national regulations in force on the date of entry into force
of this Directive to be marketed and put into service;
26.Whereas the requirements laid down in the Annexes should be
made as clear as possible so as to allow all users, includingsmall and medium-sized enterprises (SMEs), to comply withthem easily;
27.Whereas an agreement on a modus vivendi between the
European Parliament, the Council and the Commission
concerning the implementing measures for acts adopted in accor-
dance with the procedure laid down in Article 189b of the Treatywas reached on 20 December 1994 (
2),1997L0023 — EN — 29.07.1997 — 000.001 — 5
(1) OJ No L 220, 30. 8. 1993, p. 23.
(2) OJ No C 102, 4. 4. 1996, p. 1.
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HAVE ADOPTED THIS DIRECTIVE:
Article 1
Scopeanddefinitions
1. This Directive applies to the design, manufacture and conformity
assessment of pressure equipment and assemblies with a maximumallowable pressure PS greater than 0,5 bar.
2. For the purposes of this Directive:
2.1. ‘Pressure equipment’ means vessels, piping, safety accessories
and pressure accessories.
Where applicable, pressure equipment includes elements
attached to pressurized parts, such as flanges, nozzles, couplings,supports, lifting lugs, etc.
2.1.1. ‘Vessel’ means a housing designed and built to contain fluids
under pressure including its direct attachments up to the
coupling point connecting it to other equipment. A vessel may
be composed of more than one chamber.
2.1.2. ‘Piping’ means piping components intended for the transport of
fluids, when connected together for integration into a pressuresystem. Piping includes in particular a pipe or system of pipes,tubing, fittings, expansion joints, hoses, or other pressure-bearingcomponents as appropriate. Heat exchangers consisting of pipes
for the purpose of cooling or heating air shall be considered as
piping.
2.1.3. ‘Safety accessories’ means devices designed to protect pressure
equipment against the allowable limits being exceeded. Suchdevices include:
— devices for direct pressure limitation, such as safety valves,
bursting disc safety devices, buckling rods, controlled safetypressure relief systems (CSPRS), and
— limiting devices, which either activate the means for correc-
tion or provide for shutdown or shutdown and lockout, suchas pressure switches or temperature switches or fluid levelswitches and ‘safety related measurement control and regula-tion (SRMCR)’ devices.
2.1.4. ‘Pressure accessories’ means devices with an operational func-
tion and having pressure-bearing housings.
2.1.5. ‘Assemblies’ means several pieces of pressure equipment
assembled by a manufacturer to constitute an integrated and
functional whole.
2.2. ‘Pressure’ means pressure relative to atmospheric pressure, i.e.
gauge pressure. As a consequence, vacuum is designated by a
negative value.
2.3. ‘Maximum allowable pressure PS’ means the maximum pressure
for which the equipment is designed, as specified by the manu-facturer.
It is defined at a location specified by the manufacturer. This
must be the location of connection of protective and/or limitingdevices or the top of equipment or if not appropriate any point
specified.
2.4. ‘Maximum/minimum allowable temperature TS’ means the
maximum/minimum temperatures for which the equipment is
designed, as specified by the manufacturer.
2.5. ‘Volume (V)’ means the internal volume of a chamber,
including the volume of nozzles to the first connection or weldand excluding the volume of permanent internal parts.
2.6. ‘Nominal size (DN)’ means a numerical designation of size
which is common to all components in a piping system otherthan components indicated by outside diameters or by threadsize. It is a convenient round number for reference purposes1997L0023 — EN — 29.07.1997 — 000.001 — 6
▼B
and is only loosely related to manufacturing dimensions. The
nominal size is designated by DN followed by a number.
2.7. ‘Fluids’ means gases, liquids and vapours in pure phase as well
as mixtures thereof. A fluid may contain a suspension of solids.
2.8. ‘Permanent joints’ means joints which cannot be disconnected
except by destructive methods.
2.9. ‘European approval for materials’ means a technical document
defining the characteristics of materials intended for repeateduse in the manufacture of pressure equipment which are notcovered by any harmonized standard.
3. The following are excluded from the scope of this Directive:
3.1. pipelines comprising piping or a system of piping designed for
the conveyance of any fluid or substance to or from an installa-tion (onshore or offshore) starting from and including the lastisolation device located within the confines of the installation,including all the annexed equipment designed specifically forpipelines. This exclusion does not apply to standard pressure
equipment such as may be found in pressure reduction stations
or compression stations;
3.2. networks for the supply, distribution and discharge of water and
associated equipment and headraces such as penstocks, pressure
tunnels, pressure shafts for hydroelectric installations and theirrelated specific accessories;
3.3. equipment covered by Directive 87/404/EEC on simple pressure
vessels;
3.4. equipment covered by Council Directive 75/324/EEC of 20 May
1975 on the approximation of the laws of the Member States
relating to aerosol dispensers (
1);
3.5. equipment intended for the functioning of vehicles defined by the
following Directives and their Annexes:
— Council Directive 70/156/EEC of 6 February 1970 on the
approximation of the laws of the Member States relating tothe type-approval of motor vehicles and their trailers (
2),
— Council Directive 74/150/EEC of 4 March 1974 on the
approximation of the laws of the Member States relating to
the type-approval of wheeled agricultural or forestry trac-tors (
3),
— Council Directive 92/61/EEC of 30 June 1992 relating to the
type-approval of two or three-wheel motor vehicles (4);
3.6. equipment classified as no higher than category I under Article 9
of this Directive and covered by one of the following Directives:
— Council Directive 89/392/EEC of 14 June 1989 on the
approximation of the laws of the Member States relating tomachinery (
5),
— European Parliament and Council Directive 95/16/EC of 29
June 1995 on the approximation of the laws of the MemberStates relating to lifts (
6),
— Council Directive 73/23/EEC of 19 February 1973 on the
harmonization of the laws of the Member States relating to1997L0023 — EN — 29.07.1997 — 000.001 — 7
(1) OJ No L 147, 9. 6. 1975, p. 40. Directive as last amended by Commission
Directive 94/1/EC (OJ No L 23, 28. 1. 1994, p. 28).
(2) OJ No L 42, 23. 2. 1970, p. 1. Directive as last amended by Commission
Directive 95/54/EC (OJ No L 266, 8. 11. 1995, p. 1).
(3) OJ No L 84, 28. 3. 1974, p. 10. Directive as last amended by the 1994 Act
of Accession.
(4) OJ No L 225, 10. 8. 1992, p. 72. Directive as last amended by the 1994 Act
of Accession.
(5) OJ No L 183, 29. 6. 1989, p. 9. Directive as last amended by Directive 93/
68/EEC (OJ No L 220, 30. 8. 1993, p. 1).
(6) OJ No L 213, 7. 9. 1995, p. 1.
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electrical equipment designed for use within certain voltage
limits (1),
— Council Directive 93/42/EEC of 14 June 1993 concerning
medical devices (2),
— Council Directive 90/396/EEC of 29 June 1990 on the
approximation of the laws of the Member States relating to
appliances burning gaseous fuels (3),
— Directive 94/9/EC of the European Parliament and the
Council of 23 March 1994 on the approximation of the laws
of the Member States concerning equipment and protectivesystems intended for use in potentially explosive atmo-spheres (
4);
3.7. equipment covered by Article 223 (1) (b) of the Treaty;
3.8. items specifically designed for nuclear use, failure of which may
cause an emission of radioactivity;
3.9. well-control equipment used in the petroleum, gas or geothermal
exploration and extraction industry and in underground storagewhich is intended to contain and/or control well pressure. Thiscomprises the wellhead (Christmas tree), the blow out preventers(BOP), the piping manifolds and all their equipment upstream;
3.10. equipment comprising casings or machinery where the dimen-
sioning, choice of material and manufacturing rules are basedprimarily on requirements for sufficient strength, rigidity andstability to meet the static and dynamic operational effects or
other operational characteristics and for which pressure is not a
significant design factor. Such equipment may include:
— engines including turbines and internal combustion engines,
— steam engines, gas/steam turbines, turbo-generators, compres-
sors, pumps and actuating devices;
3.11. blast furnaces including the furnace cooling system, hot-blast
recuperators, dust extractors and blast-furnace exhaust-gas scrub-bers and direct reducing cupolas, including the furnace cooling,gas converters and pans for melting, re-melting, de-gassing andcasting of steel and non-ferrous metals;
3.12. enclosures for high-voltage electrical equipment such as switch-
gear, control gear, transformers, and rotating machines;
3.13. pressurized pipes for the containment of transmission systems,
e.g. for electrical power and telephone cables;
3.14. ships, rockets, aircraft and mobile off-shore units, as well as
equipment specifically intended for installation on board or thepropulsion thereof;
3.15. pressure equipment consisting of a flexible casing, e.g. tyres, air
cushions, balls used for play, inflatable craft, and other similarpressure equipment;
3.16. exhaust and inlet silencers;
3.17. bottles or cans for carbonated drinks for final consumption;
3.18. vessels designed for the transport and distribution of drinks
having a PS·V of not more than 500 bar·L and a maximumallowable pressure not exceeding 7 bar;1997L0023 — EN — 29.07.1997 — 000.001 — 8
(1) OJ No L 77, 26. 3. 1973, p. 29. Directive as last amended by Directive 93/
68/EEC (OJ No L 220, 30. 8. 1993, p. 1).
(2) OJ No L 169, 12. 7. 1993, p. 1.
(3) OJ No L 196, 26. 7. 1990, p. 15. Directive as last amended by Directive 93/
68/EEC (OJ No L 220, 30. 8. 1993, p. 1).
(4) OJ No L 100, 19. 4. 1994, p. 1.
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3.19. equipment covered by the ADR(1), the RID(2), the IMDG(3) and
the ICAO Convention (4);
3.20. radiators and pipes in warm water heating systems;
3.21. vessels designed to contain liquids with a gas pressure above the
liquid of not more than 0,5 bar.
Article 2
Marketsurveillance
1. Member States shall take all appropriate measures to ensure that
the pressure equipment and the assemblies referred to in Article 1 maybe placed on the market and put into serive only if, when properlyinstalled and maintained and used for their intended purpose, they donot endanger the health and safety of persons and, where appropriate,domestic animals or property.
2. The provisions of this Directive shall not affect Member States'
entitlement to lay down, with due regard to the provisions of theTreaty, such requirements as they may deem necessary to ensure thatpersons and, in particular, workers are protected during use of the pres-sure equipment or assemblies in question provided that this does notmean modifications to such equipment or assemblies in a way not
specified in this Directive.
3. At trade fairs, exhibitions, demonstrations, etc., Member States
shall not prevent the showing of pressure equipment or assemblies asdefined in Article 1 not in conformity with the provisions of this Direc-tive, provided that a visible sign clearly indicates their non-conformityand their non-availability for sale until brought into conformity by the
manufacturer or by his authorized representative established within the
Community. During demonstrations, appropriate safety measures shallbe taken in accordance with any requirements laid down by the compe-tent authority of the Member State concerned in order to ensure thesafety of persons.
Article 3
Technicalrequirements
1. The pressure equipment referred to in 1.1, 1.2, 1.3 and 1.4 must
satisfy the essential requirements set out in Annex I:
1.1. Vessels, except those referred to in 1.2 for:
(a) gases, liquefied gases, gases dissolved under pressure, vapours
and also those liquids whose vapour pressure at the maximumallowable temperature is greater than 0,5 bar above normalatmospheric pressure, (1013 mbar) within the following
limits:
— for fluids in Group1 with a volume greater than 1 L and a
product of PS and V greater than 25 bar·L, or with a pres-sure PS greater than 200 bar (Annex II, table 1),
— for fluids in Group2, with a volume greater than 1 L and a
product of PS and V is greater than 50 bar·L, or with a
pressure PS greater than 1 000 bar, and all portable extin-
guishers and bottles for breathing apparatus (Annex II,table 2);1997L0023 — EN — 29.07.1997 — 000.001 — 9
(1) ADR = European Agreement concerning the International Carriage of
Dangerous Goods by Road.
(2) RID = Regulations concerning the International Carriage of Dangerous
Goods by Rail.
(3) IMDG = International Maritime Dangerous Goods Code.
(4) ICAO = International Civil Aviation Organization.
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(b) liquids having a vapour pressure at the maximum allowable
temperature of not more than 0,5 bar above normal atmo-spheric pressure (1013 mbar) within the following limits:
— for fluids in Group1 with a volume greater than 1 L and a
product of PS and V greater than 200 bar·L, or with a pres-
sure PS greater than 500 bar (Annex II, table 3),
— for fluids in Group2 with a p ressure PS greater than 10
bar and a product of PS and V greater than 10 000 bar·L,or with a pressure PS greater than 1 000 bar (Annex II,table 4).
1.2. Fired or otherwise heated pressure equipment with the risk of
overheating intended for generation of steam or super-heated water
at temperatures higher than ►
C1110 ºC◄having a volume
greater than 2L, and all pressure cookers (Annex II, table 5).
1.3. Piping intended for:
(a) gases, liquified gases, gases dissolved under pressure, vapours
and those liquids whose vapour pressure at the maximumallowable temperature is greater than 0,5 bar above normalatmospheric pressure (1013 mbar) within the following limits:
— for fluids in Group1 with a DN greater than 25 (Annex II,
table 6),
— for fluids in Group2 with a DN greater than 32 and a
product of PS and DN greater than 1 000 bar (Annex II,table 7);
(b) liquids having a vapour pressure at the maximum allowable
temperature of not more than 0,5 bar above normal atmo-spheric pressure (1013 mbar), within the following limits:
— for fluids in Group1 with a DN greater than 25 and a
product of PS and DN greater than 2 000 bar (Annex II,table 8),
— for fluids in Group2 with a PS greater than 10 bar, a DN
greater than 200 and a product of PS and DN greater than
5 000 bar (Annex II, table 9).
1.4. Safety and pressure accessories intended for equipment covered by
1.1, 1.2 and 1.3 including where such equipment is incorporatedinto an assembly.
2. The assemblies defined in Article 1, section 2.1.5, which include
at least one item of pressure equipment covered by section 1 of this
Article and which are listed in 2.1, 2.2 and 2.3 of this Article must
satisfy the essential requirements set out in Annex I.
2.1. Assemblies intended for generating steam or superheated water at
a temperature higher than ►
C1110 ºC◄comprising at least
one item of fired or otherwise heated pressure equipment
presenting a risk of overheating.
2.2. Assemblies other than those referred to in 2.1, if the manufacturer
intends them to be placed on the market and put into service asassemblies.
2.3. By way of derogation from the introductory paragraph to this
section, assemblies intended for generating warm water attemperatures not greater than 110 ºC which are manually fedwith solid fuels and have a PS·V greater than 50 bar·L mustcomply with the essential requirements referred to in 2.10, 2.11,
3.4, 5 (a) and 5 (d) of Annex I.
3. Pressure equipment and/or assemblies below or equal to the limits
in sections 1.1, 1.2 and 1.3 and section 2 respectively must be designedand manufactured in accordance with the sound engineering practice of
a Member State in order to ensure safe use. Pressure equipment and/or
assemblies must be accompanied by adequate instructions for use andmust bear markings to permit identification of the manufacturer or ofhis authorized representative established within the Community. Suchequipment and/or assemblies must not bear the CE marking referredto in Article 15.1997L0023 — EN — 29.07.1997 — 000.001 — 10
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Article 4
Free movement
1. 1.1. Member States shall not, on grounds of the hazards due to pres-
sure, prohibit, restrict or impede the placing on the market or
putting into service under the conditions specified by the manu-facturer of pressure equipment or assemblies referred to inArticle 1 which comply with this Directive and bear the CEmarking indicating that they have undergone conformity assess-ment in accordance with Article 10.
1.2. Member States shall not, on grounds of the hazards due to pres-
sure, prohibit, restrict or impede the placing on the market orputting into service of pressure equipment or assemblies whichcomply with Article 3 (3).
2. Member States may require, to the extent that it is needed for safe
and correct use of pressure equipment and assemblies, the informationreferred to in Annex I sections 3.3 and 3.4 to be provided in the officiallanguage(s) of the Community which may be determined in accordancewith the Treaty by the Member State in which the equipment orassembly reaches the final user.
Article 5
Presumptionofconformity
1. Member States shall regard pressure equipment and assemblies
bearing the CE marking provided for in Article 15 and the EC declara-tion of conformity provided for in Annex VII as conforming to all theprovisions of this Directive, including the conformity assessmentprovided for in Article 10.
2. Pressure equipment and assemblies which conform to the national
standards transposing the harmonized standards the reference numbers
of which have been published in the Official Journal of the EuropeanCommunities shall be presumed to conform to the essential require-ments referred to in Article 3. Member States shall publish thereference numbers of the national standards referred to above.
3. Member States shall ensure that appropriate measures are taken to
enable both sides of industry to have an input at national level in the
process of preparing and monitoring the harmonized standards.
Article 6
Committee ontechnical standardsandregulations
Where a Member State or the Commission considers that the standards
referred to in Article 5 (2) do not entirely meet the essential require-ments referred to in Article 3, the Member State concerned or theCommission shall inform the Standing Committee set upby Article 5
of Directive 83/189/EEC giving the reasons therefor. The Committee
shall issue an opinion as a matter of urgency.
Taking into account the Committee's opinion, the Commission shall
notify the Member States as to whether or not those standards shouldbe withdrawn from the publications referred to in Article 5 (2).
Article 7
Committee onPressure Equipment
1. The Commission may take any appropriate measure to implement
the following provisions:
Where a Member State considers that, for very serious safety reasons,
— an item or family of pressure equipment referred to in Article 3 (3)
should be subject to the requirements of Article 3 (1), or
— an assembly or family of assemblies referred to in Article 3 (3)
should be subject to the requirements of Article 3 (2), or1997L0023 — EN — 29.07.1997 — 000.001 — 11
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— an item or family of pressure equipment should be classified, by
way of derogation from the requirements of Annex II, in anothercategory,
it shall submit a duly substantiated request to the Commission and ask
it to take the necessary measures. Those measures shall be adopted in
accordance with the procedure laid down in paragraph 3.
2. The Commission shall be assisted by a Standing Committee, here-
after referred to as ‘the Committee’, composed of representatives
appointed by the Member States and chaired by a representative ofthe Commission.
The Committee shall draw upits own rules of p rocedure.3. The representative of the Commission shall submit to the
Committee a draft of the measures to be taken pursuant to paragraph1. The Committee shall deliver its opinion on the draft, within a timelimit which the chairman may lay down according to the urgency ofthe matter, if necessary by taking a vote.
The opinion shall be record in the minutes; in addition, each Member
State shall have the right to ask to have its position recorded in theminutes.
The Commission shall take the utmost account of the opinion delivered
by the Committee. It shall inform the Committee of the manner in
which its opinion has been taken into account.
4. The Committee may furthermore examine any other matter
relating to the implementation and practical application of this Direc-
tive and raised by its chairman either on his own initiative or at the
request of a Member State.
Article 8
Safeguardclause
1. Where a Member State ascertains that pressure equipment or
assemblies referred to in Article 1, bearing the CE marking and usedin accordance with their intended use are liable to endanger the safety
of persons and, where appropriate, domestic animals or property, it
shall take all appropriate measures to withdraw such equipment orassemblies from the market, prohibit the placing on the market, puttinginto service or use thereof, or restrict free movement thereof.
The Member State shall immediately inform the Commission of any
such measure, indicating the reasons for its decision and, in particular,whether non-conformity is due to:
(a) failure to satisfy the essential requirements referred to in Article 3;
(b) incorrect application of the standards referred to in Article 5 (2);(c) shortcomings in the standards referred to in Article 5 (2);
(d) shortcomings in the European approval of pressure equipment
materials as referred to in Article 11.
2. The Commission shall enter into consultation with the parties
concerned without delay. Where the Commission considers, after this
consultation, that the measure is justified, it shall immediately soinform the Member State which took the initiative and the otherMember States.
Where the Commission considers, after this consultation, that the
measure is unjustified, it shall immediately so inform the Member Statewhich took the initiative and the manufacturer, or his authorized repre-
sentative established within the Community. Where the decision
referred to in paragraph 1 is based on a shortcoming in the standardsor in European approvals for materials and where the Member State atthe origin of the decision maintains its position the Commission shallimmediately inform the Committee referred to in Article 6 in order toinitiate the procedure referred to in the first paragraph of Article 6.1997L0023 — EN — 29.07.1997 — 000.001 — 12
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3. Where pressure equipment or an assembly which does not comply
bears the CE marking, the competent Member State shall take appro-priate action against the person(s) having affixed the CE marking and
shall so inform the Commission and the other Member States.
4. The Commission shall ensure that the Member Sates are kept
informed of the progress and outcome of this procedure.
Article 9
Classificationofpressureequipment
1. Pressure equipment referred to in Article 3 (1) shall be classified
by category in accordance with Annex II, according to ascending levelof hazard.
For the purposes of such classification fluids shall be divided into two
groups in accordance with 2.1 and 2.2.
2.1. Group1 comp rises dangerous fluids. A dangerous fluid is a
substance or preparation covered by the definitions in Article 2(2) of Council Directive 67/548/EEC of 27 June 1967 on theapproximation of the laws, regulations and administrative provi-
sions relating to the classification, packaging and labelling of
dangerous substances (
1).
Group1 comp rises fluids defined as:— explosive,
— extremely flammable,
— highly flammable,
— flammable (where the maximum allowable temperature is
above flashpoint),
— very toxic,
— toxic,
— oxidizing.
2.2. Group2 comp rises all other fluids not referred to in 2.1.
3. Where a vessel is composed of a number of chambers, it shall be
classified in the highest category applicable to the individual chambers.
Where a chamber contains several fluids, classification shall be on the
basis of the fluid which requires the highest category.
Article 10
Conformityassessment
1. 1.1. Before placing pressure equipment on the market, the manufac-
turer shall subject each item of equipment to one of theconformity assessment procedures described in Annex III,according to the conditions given in this Article.
1.2. The conformity assessment procedures to be applied to an item
of pressure equipment with a view to affixing the CE markingshall be determined by the category, as defined in Article 9, inwhich the equipment is classified.
1.3. The conformity assessment procedures to be applied for the
various categories are as follows:
— category I
Module A
— category II
Module A1
Module D1
Module E1
— category III1997L0023 — EN — 29.07.1997 — 000.001 — 13
(1) OJ No 196, 16. 8. 1967, p. 1. Directive as last amended by Commission
Directive 94/69/EC (OJ No L 381, 31. 12. 1994, p. 1).
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Module B1 + DModule B1 + FModule B + EModule B + C1Module H
— category IV
Module B + DModule B + FModule GModule H1
1.4. Pressure equipment shall be subjected to one of the conformity
assessment procedures which may be chosen by the manufac-
turer among those laid down for the category in which it isclassified. The manufacturer may also choose to apply one ofthe procedures which apply to a higher category, if available.
1.5. In the framework of quality assurance procedures for equipment
in categories III and IV referred to in Article 3, section 1.1 (a),section 1.1 (b) first indent and section 1.2, the notified bodyshall, when performing unexpected visits, take a sample ofequipment from the manufacturing or storage premises in order
to perform, or have performed, the final assessment as referred
to in Annex I, section 3.2.2. To this end, the manufacturer shallinform the notified body of the intended schedule of produc-tion. The notified body shall carry out at least two visitsduring the first year of manufacturing. The frequency of subse-
quent visits shall be determined by the notified body on the
basis of the criteria set out in section 4.4 of the relevantmodules.
1.6. In the case of one-off production of vessels and equipment in
Category III referred to in Article 3, section 1.2 under the
module H procedure, the notified body shall perform or haveperformed the final assessment, as referred to in Annex I,section 3.2.2, for each unit. To this end, the manufacturer shallcommunicate the intended schedule of production to the noti-
fied body.
2. Assemblies referred to in Article 3 (2) shall be subjected to a
global conformity assessment procedure comprising:
(a) assessment of each item of pressure equipment making up the
assembly and referred to in Article 3 (1) which has not beenpreviously subjected to a conformity assessment procedure and to
a separate CE marking; the assessment procedure shall be deter-
mined by the category of each item of equipment;
(b) the assessment of the integration of the various components of the
assembly as referred to in sections 2.3, 2.8 and 2.9 of Annex I
which shall be determined by the highest category applicable tothe equipment concerned other than that applicable to any safetyaccessories;
(c) the assessment of the protection of an assembly against exceeding
the permissible operating limits as referred to in sections 2.10 and3.2.3 of Annex I shall be conducted in the light of the highest cate-gory applicable to the items of equipment to be protected.
3. By way of derogation from paragraphs 1 and 2, the competent
authorities may, where justified, allow the placing on the market and
putting into service in the territory of the Member State concerned ofindividual pressure equipment items and assemblies referred to inArticle 1 (2), in respect of which the procedures referred to in para-graphs 1 and 2 of this Article have not been applied and the use ofwhich is in the interests of experimentation.
4. Records and correspondence relating to conformity assessment
shall be drawn upin the official language(s) of the Community whichmay be determined in accordance with the Treaty by the Member Statewhere the body responsible for carrying out these procedures is estab-lished, or in a language accepted by that body.1997L0023 — EN — 29.07.1997 — 000.001 — 14
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Article 11
Europeanapprovalformaterials
1. European approval for materials, as defined in Article 1, section
2.9, shall be issued at the request of one or more manufacturers ofmaterials or equipment, by one of the notified bodies referred to inArticle 12 specifically designated for that task. The notified body shalldetermine and perform, or arrange for the performance of, the appro-priate inspections and tests to certify the conformity of the types of
material with the corresponding requirements of this Directive; in the
case of materials recognized as being safe to use before 29 November1999, the notified body shall take account of the existing data whencertifying such conformity.
2. Before issuing European approval for materials, the notified body
shall inform the Member States and the Commission by sending themthe appropriate information. Within three months, a Member State orthe Commission may refer the matter to the Standing Committee set
upby Article 5 of Directive 83/189/EEC, giving its reasons. In that
case, the Committee shall issue an opinion as a matter of urgency.
The notified body shall issue the European approval for materials
taking into account, where appropriate, the opinion of the Committee
and the comments submitted.
3. A copy of the European approval for pressure equipment mate-
rials shall be sent to the Member States, the notified bodies and the
Commission. The Commission shall publish and keep up to date a listof European approvals for materials in the Official Journal of the
EuropeanCommunities .
4. The materials used for the manufacture of pressure equipment
conforming with European approvals for materials, the references ofwhich have been published in the Official Journal of the European
Communities , shall be presumed to conform to the applicable essential
requirements of Annex I.
5. The notified body which issued the European approval for pres-
sure equipment materials shall withdraw that approval if it finds that
it should not have been ►
C1issued or if the type ◄of materials is
covered by a harmonized standard. It shall immediately inform theother Member States, the notified bodies and the Commission of anywithdrawal of an approval.
Article 12
Notifiedbodies
1. Member States shall notify the Commission and the other
Member States of the bodies which they have appointed to carry out
the procedures referred to in Article 10 and Article 11, together with
the specific tasks which those bodies have been appointed to carry outand the identification numbers assigned to them beforehand by theCommission.
The Commission shall publish in the Official Journal of the European
Communities a list of the notified bodies, with their identification
numbers and the tasks for which they have been notified. The Commis-sion shall ensure that this list is kept up to date.
2. Member States shall apply the criteria set out in Annex IV for the
designation of bodies. Bodies meeting the criteria laid down in the rele-vant harmonized standards shall be presumed to fulfil the
corresponding criteria in Annex IV.
3. A Member State which has notified a body must withdraw such
notification if it finds that the body no longer meets the criteria referred
to in paragraph 2.
It shall forthwith inform the other Member States and the Commission
of any such withdrawal of a notification.1997L0023 — EN — 29.07.1997 — 000.001 — 15
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Article 13
Recognizedthird-partyorganizations
1. Member States shall notify the Commission and the other
Member States of the third-party organizations which they have recog-
nized for the purposes of the tasks referred to in Annex I, sections 3.2.2and 3.1.3.
The Commission shall publish in the Official Journal of the European
Communities a list of the recognized organizations with the tasks for
which they have been recognized. The Commission shall ensure that
this list is kept up to date.
2. Member States shall apply the criteria set out in Annex IV for the
recognition of organizations. Organizations meeting the criteria laiddown in the relevant harmonized standards shall be presumed to fulfilthe corresponding criteria in Annex IV.
3. A Member State which has recognized an organization must with-
draw such recognition if it finds that the organization no longer meets
the criteria referred to in paragraph 2.
It shall forthwith inform the other Member States and the Commission
of any such withdrawal of a recognition.
Article 14
Userinspectorates
1. By way of derogation from the provisions relating to the tasks
carried out by the notified bodies, Member States may authorize in
their territory the placing on the market, and the putting into serviceby users, of pressure equipment or assemblies referred to in Article 1of which conformity with the essential requirements has been assessedby a user inspectorate designated in accordance with the criteria
referred to in paragraph 8.
2. When a Member State has designated a user inspectorate in
accordance with the criteria set out in this Article, it may not, ongrounds of the hazards due to pressure, prohibit, restrict or impede theplacing on the market or putting into service under the conditionsprovided for in this Article of pressure equipment or assemblies the
conformity of which has been assessed by a user inspectorate desig-
nated by another Member State in accordance with the criteria set outin this Article.
3. Pressure equipment and assemblies the conformity of which has
been assessed by a user inspectorate shall not bear the CE marking.
4. The pressure equipment and assemblies referred to may be used
only in establishments operated by the group of which the inspectorate
is part. The group shall apply a common safety policy as regards thetechnical specifications for the design, manufacture, inspection, mainte-nance and use of pressure equipment and assemblies.
5. The user inspectorates shall act exclusively for the group of
which they are part.
6. The conformity assessment procedures applicable by user inspec-
torates shall be modules A1, C1, F and G, as described in Annex III.
7. Member States shall inform the other Member States and the
Commission which user inspectorates they have authorized, the tasksfor which they have been designated and, for each inspectorate, a listof the establishments satisfying the provisions of paragraph 4.
8. In designating the user inspectorates, the Member States shall
apply the criteria listed in Annex V and ensure that the group of whichthe inspectorate is part applies the criteria referred to in the secondsentence of paragraph 4.
9. A Member State that has authorized a user inspectorate shall
withdraw that authorization if it finds that the user inspectorate no1997L0023 — EN — 29.07.1997 — 000.001 — 16
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longer meets the criteria referred to in paragraph 8. It shall inform the
other Member States and the Commission thereof.
10. The effects of this Article shall be monitored by the Commission
and evaluated three years after the date specified in Article 20 (3). Tothis end, Member States shall forward to the Commission any useful
information on the implementation of this Article. If necessary the
evaluation shall be accompanied by a proposal for amendment of theDirective.
Article 15
CEmarking
1. The CE marking consists of the initials ‘CE’ in accordance with
the model in Annex VI.
The CE marking shall be accompanied by the identification number, as
referred to in Article 12 (1), of the notified body involved at theproduction control phase.
2. The CE marking shall be affixed in a visible, easily legible and
indelible fashion to each
— item of pressure equipment referred to in Article 3 (1), or
— assembly referred to in Article 3 (2)
which is complete or is in a state permitting final assessment as
described in section 3.2 of Annex I.
3. It is not necessary for the CE marking to be affixed to each indi-
vidual item of pressure equipment making up an assembly as referredto in Article 3 (2). Individual items of pressure equipment alreadybearing the CE marking when incorporated into the assembly shall
continue to bear that marking.
4. Where the pressure equipment or assembly is subject to other
Directives covering other aspects which provide for the affixing of the
CE marking, the latter shall indicate that the pressure equipment or
assembly in question is also presumed to conform to the provisions ofthose other Directives.
However, should one or more of those Directives allow the manufac-
turer, during a transitional period, to choose which arrangements toapply, the CE marking shall indicate conformity only with the Direc-tives applied by the manufacturer. In this case, the particulars of thesaid Directives, as published in the Official Journal of the European
Communities , must be given in the documents, notices or instructions
required by the Directives and accompanying the pressure equipment
or assembly.
5. The affixing of markings on pressure equipment or assemblies
which are likely to mislead third parties as to the meaning or form ofthe CE marking shall be prohibited. Any other marking may be affixedto pressure equipment or assemblies provided that the visibility andlegibility of the CE marking is not thereby reduced.
Article 16
UndulyaffixedCEmarking
Without prejudice to Article 8:
(a) where a Member State establishes that the CE marking has been
affixed unduly, the manufacturer, or his authorized representativeestablished within the Community, shall be obliged to make theproduct conform as regards the provisions concerning the CEmarking and to end the infringement under the conditions imposed
by the Member State;
(b) should non-conformity persist, the Member State must take all
appropriate measures to restrict or prohibit the placing on themarket of the product in question or to ensure that it is withdrawnfrom the market in accordance with the procedures laid down inArticle 8.1997L0023 — EN — 29.07.1997 — 000.001 — 17
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Article 17
Member States shall take appropriate measures in order to encourage
the authorities responsible for implementing this Directive to cooperate
with each other and provide each other and the Commission with infor-
mation in order to assist the functioning of this Directive.
Article 18
Decisionsentailingrefusalorrestriction
Any decision taken pursuant to this Directive which restricts the
placing on the market and the putting into service or requires the with-drawal from the market of pressure equipment or assemblies shall statethe exact grounds on which it is based. Such decision shall be notifiedforthwith to the party concerned, who shall at the same time beinformed of the legal remedies available to him under the laws in force
in the Member State concerned and of the time limits to which such
remedies are subject.
Article 19
Repeal
Article 22 of Directive 76/767/EEC shall cease to apply as from 29
November 1999 in respect of pressure equipment and assembliescovered by this Directive.
Article 20
Transpositionandtransitionalprovisions
1. Before 29 May 1999 Member States shall adopt and publish the
laws, regulations and administrative provisions necessary to complywith this Directive. They shall forthwith inform the Commissionthereof.
When Member States adopt the measures referred to in the first subpar-
agraph, they shall contain a reference to this Directive or shall beaccompanied by such reference on the occasion of their official publi-cation. The methods of making such reference shall be laid down byMember States.
Member States shall apply such provisions as from 29 November 1999.2. Member States shall communicate to the Commission the texts of
the provisions of national law which they adopt in the field governed
by this Directive.
3. Member States must permit the placing on the market of pressure
equipment and assemblies which comply with the regulations in forcein their territory at the date of application of this Directive until 29May 2002, and permit such equipment and assemblies to be put intoservice beyond that date.
Article 21
AddresseesoftheDirective
This Directive is addressed to the Member States.1997L0023 — EN — 29.07.1997 — 000.001 — 18
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ANNEX I
ESSENTIALSAFETYREQUIREMENTS
PRELIMINARY OBSERVATIONS
1. The obligations arising from the essential requirements listed in this
Annex for pressure equipment also apply to assemblies where the corre-
sponding hazard exists.
2. The essential requirements laid down in the Directive are compulsory.
The obligations laid down in these essential requirements apply only if
the corresponding hazard exists for the pressure equipment in question
when it is used under conditions which are reasonably foreseeable by
the manufacturer.
3. The manufacturer is under an obligation to analyse the hazards in order
to identify those which apply to his equipment on account of pressure;
he must then design and construct it taking account of his analysis.
4. The essential requirements are to be interpreted and applied in such a
way as to take account of the state of the art and current practice at
the time of design and manufacture as well as of technical and economic
considerations which are consistent with a high degree of health and
safety protection.
1. GENERAL
1.1. Pressure equipment must be designed, manufactured and checked, and if
applicable equipped and installed, in such a way as to ensure its safety
when put into service in accordance with the manufacturer's instructions,
or in reasonably foreseeable conditions.
1.2. In choosing the most appropriate solutions, the manufacturer must apply
the principles set out below in the following order:
— eliminate or reduce hazards as far as is reasonably practicable,
— apply appropriate protection measures against hazards which cannnot
be eliminated,
— where appropriate, inform users of residual hazards and indicate
whether it is necessary to take appropriate special measures to
reduce the risks at the time of installation and/or use.
1.3. Where the potential for misuse is known or can be clearly foreseen, the
pressure equipment must be designed to prevent danger from such
misuse or, if that is not possible, adequate warning given that the pres-
sure equipment must not be used in that way.
2. DESIGN
2.1.General
The pressure equipment must be properly designed taking all relevant
factors into account in order to ensure that the equipment will be safe
throughout its intended life.
The design must incorporate appropriate safety coefficients using
comprehensive methods which are known to incorporate adequate safety
margins against all relevant failure modes in a consistent manner.
2.2.Designforadequatestrength
2.2.1. The pressure equipment must be designed for loadings appropriate to its
intended use and other reasonably foreseeable operating conditions. In
particular, the following factors must be taken into account:
— internal/external pressure,
— ambient and operational temperatures,— static pressure and mass of contents in operating and test conditions,— traffic, wind, earthquake loading,— reaction forces and moments which result from the supports, attach-
ments, piping, etc.,
— corrosion and erosion, fatigue, etc.,— decomposition of unstable fluids.
Various loadings which can occur at the same time must be considered,
taking into account the probability of their simultaneous occurence.1997L0023 — EN — 29.07.1997 — 000.001 — 19
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2.2.2. Design for adequate strength must be based on:
— as a general rule, a calculation method, as described in 2.2.3, and
supplemented if necessary by an experimental design method as
described in 2.2.4, or
— an experimental design method without calculation, as described in
2.2.4, when the product of the maximum allowable pressure PS and
the volume V is less than 6 000 bar·L or the product PS·DN less
than 3000 bar.
2.2.3.Calculation method
(a) Pressure containment and other loading aspects
The allowable stresses for pressure equipment must be limited
having regard to reasonably foreseeable failure modes under oper-
ating conditions. To this end, safety factors must be applied to
eliminate fully any uncertainty arising out of manufacture, actual
operational conditions, stresses, calculation models and the proper-
ties and behaviour of the material.
These calculation methods must provide sufficient safety margins
consistent, where applicable, with the requirements of section 7.
The requirements set out above may be met by applying one of the
following methods, as appropriate, if necessary as a supplement to
or in combination with another method:
— design by formula,
— design by analysis,— design by fracture mechanics;
(b) Resistance
Appropriate design calculations must be used to establish the resis-
tance of the pressure equipment concerned.
In particular:
— the calculation pressures must not be less than the maximum
allowable pressures and take into account static head and
dynamic fluid pressures and the decomposition of unstable
fluids. Where a vessel is separated into individual pressure-
containing chambers, the partition wall must be designed on the
basis of the highest possible chamber pressure relative to the
lowest pressure possible in the adjoining chamber,
— the calculation temperatures must allow for appropriate safety
margins,
— the design must take appropriate account of all possible combi-
nations of temperature and pressure which might arise under
reasonably foreseeable operating conditions for the equipment,
— the maximum stresses and peak stress concentrations must be
kept within safe limits,
— the calculation for pressure containment must utilize the values
appropriate to the properties of the material, based on docu-
mented data, having regard to the provisions set out in section
4 together with appropriate safety factors. Material characteris-
tics to be considered, where applicable, include:
— yield strength, 0,2 % or 1,0 % proof strength as appropriate
at calculation temperature,
— tensile strength,— time-dependent strength, i.e. creep strength,— fatigue data,— Young's modulus (modulus of elasticity),— appropriate amount of plastic strain,— impact strength,— fracture toughness,
— appropriate joint factors must be applied to the material proper-
ties depending, for example, on the type of non-destructive
testing, the materials joined and the operating conditions envi-
saged,
— the design must take appropriate account of all reasonably fore-
seeable degradation mechanisms (e.g. corrosion, creep, fatigue)
commensurate with the intended use of the equipment. Attention
must be drawn, in the instructions referred to in section 3.4, to1997L0023 — EN — 29.07.1997 — 000.001 — 20
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particular features of the design which are relevant to the life of
the equipment, for example:
— for creep: design hours of operation at specified tempera-
tures,
— for fatigue: design number of cycles at specified stress
levels,
— for corrosion: design corrosion allowance;
(c) Stability aspects
Where the calculated thickness does not allow for adequate struc-
tural stability, the necessary measures must be taken to remedy the
situation taking into account the risks from transport and handling.
2.2.4.Experimental designmethod
The design of the equipment may be validated, in all or in part, by an
appropriate test programme carried out on a sample representative of the
equipment or the category of equipment.
The test programme must be clearly defined prior to testing and
accepted by the notified body responsible for the design conformity
assessment module, where it exists.
This programme must define test conditions and criteria for acceptance
or refusal. The actual values of the essential dimensions and characteris-
tics of the materials which constitute the equipment tested shall be
measured before the test.
Where appropriate, during tests, it must be possible to observe the
critical zones of the pressure equipment with adequate instrumentation
capable of registering strains and stresses with sufficient precision.
The test programme must include:
(a) A pressure strength test, the purpose of which is to check that, at a
pressure with a defined safety margin in relation to the maximum
allowable pressure, the equipment does not exhibit significant leaks
or deformation exceeding a determined threshold.
The test pressure must be determined on the basis of the differences
between the values of the geometrical and material characteristics
measures under test conditions and the values used for design
purposes; it must take into account the differences between the test
and design temperatures;
(b) where the risk of creep or fatigue exists, appropriate tests deter-
mined on the basis of the service conditions laid down for the
equipment, for instance hold time at specified temperatures, number
of cycles at specified stress-levels, etc.;
(c) where necessary, additional tests concerning other factors referred to
in 2.2.1 such as corrosion, external damage, etc.
2.3.Provisionstoensuresafehandlingandoperation
The method of operation specified for pressure equipment must be such
as to preclude any reasonably foreseeable risk in operation of the equip-
ment. Particular attention must be paid, where appropriate, to:
— closures and openings,
— dangerous discharge of pressure relief blow-off,
— devices to prevent physical access whilst pressure or a vacuum
exists,
— surface temperature taking into consideration the intended use,
— decomposition of unstable fluids.
In particular, pressure equipment fitted with an access door must be
equipped with an automatic or manual device enabling the user easily
to ascertain that the opening will not present any hazard.Furthermore,
where the opening can be operated quickly, the pressure equipment
must be fitted with a device to prevent it being opened whenever the
pressure or temperature of the fluid presents a hazard.
2.4.Meansofexamination
(a) Pressure equipment must be designed and constructed so that all
necessary examinations to ensure safety can be carried out;
(b) Means of determining the internal condition of the equipment must
be available, where it is necessary to ensure the continued safety of
the equipment, such as access openings allowing physical access to1997L0023 — EN — 29.07.1997 — 000.001 — 21
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the inside of the pressure equipment so that appropriate examina-
tions can be carried out safely and ergonomically;
(c) Other means of ensuring the safe condition of the pressure equip-
ment may be applied:
— where it is too small for physical internal access, or
— where opening the pressure equipment would adversely affect
the inside, or
— where the substance contained has been shown not to be harmful
to the material from which the pressure equipment is made and
no other internal degradation mechanisms are reasonably fore-
seeable.
2.5.Meansofdrainingandventing
Adequate means must be provided for the draining and venting of pres-
sure equipment where necessary:
— to avoid harmful effects such as water hammer, vacuum collapse,
corrosion and uncontrolled chemical reactions. All stages of opera-
tion and testing, particularly pressure testing, must be considered,
— to permit cleaning, inspection and maintenance in a safe manner.
2.6.Corrosionorotherchemical attack
Where necessary, adequate allowance or protection against corrosion or
other chemical attack must be provided, taking due account of the
intended and reasonably foreseeable use.
2.7.Wear
Where severe conditions of erosion or abrasion may arise, adequate
measures must be taken to:
— minimize that effect by appropriate design, e.g. additional material
thickness, or by the use of liners or cladding materials,
— permit replacement of parts which are most affected,
— draw attention, in the instructions referred to in 3.4, to measures
necessary for continued safe use.
2.8.Assemblies
Assemblies must be so designed that:
— the components to be assembled together are suitable and reliable for
their duty,
— all the components are properly integrated and assembled in an
appropriate manner.
2.9.Provisionsforfillinganddischarge
Where appropriate, the pressure equipment must be so designed and
provided with accessories, or provision made for their fitting, as to
ensure safe filling and discharge in particular with respect to hazards
such as:
(a) on filling:
— overfilling or overpressurization having regard in particular to
the filling ratio and to vapour pressure at the reference tempera-
ture,
— instability of the pressure equipment;
(b) on discharge: the uncontrolled release of the pressurized fluid;
(c) on filling or discharge: unsafe connection and disconnection.
2.10.Protection against exceeding the allowable limits of pressure equip-
ment
Where, under reasonably foreseeable conditions, the allowable limits
could be exceeded, the pressure equipment must be fitted with, or provi-
sion made for the fitting of, suitable protective devices, unless the
equipment is intended to be protected by other protective devices within
an assembly.
The suitable device or combination of such devices must be determined
on the basis of the particular characteristics of the equipment or
assembly.
Suitable protective devices and combinations thereof comprise:
(a) safety accessories as defined in Article 1, section 2.1.3,1997L0023 — EN — 29.07.1997 — 000.001 — 22
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(b) where appropriate, adequate monitoring devices such as indicators
and/or alarms which enable adequate action to be taken either auto-
matically or manually to keep the pressure equipment within the
allowable limits.
2.11.Safetyaccessories
2.11.1.Safety accessoriesmust:
— be so designed and constructed as to be reliable and suitable for their
intended duty and take into account the maintenance and testing
requirements of the devices, where applicable,
— be independent of other functions, unless their safety function cannot
be affected by such other functions,
— comply with appropriate design principles in order to obstain
suitable and reliable protection. These principles include, in parti-
cular, fail-safe modes, redundancy, diversity and self-diagnosis.
2.11.2.Pressurelimiting devices
These devices must be so designed that the pressure will not perma-
nently exceed the maximum allowable pressure PS; however a short
duration pressure surge in keeping with the specifications laid down in
7.3 is allowable, where appropriate.
2.11.3.Temperaturemonitoringdevices
These devices must have an adequate response time on safety grounds,
consistent with the measurement function.
2.12.Externalfire
Where necessary, pressure equipment must be so designed and, where
appropriate, fitted with suitable accesssories, or provision made for their
fitting, to meet damage-limitation requirements in the event of external
fire, having particular regard to its intended use.
3. MANUFACTURING
3.1.Manufacturingprocedures
The manufacturer must ensure the competent execution of the provisions
set out at the design stage by applying the appropriate techniques and
relevant procedures, especially with a view to the aspects set out below.
3.1.1.Preparationofthecomponentparts
Preparation of the component parts (e.g. forming and chamfering) must
not give rise to defects or cracks or changes in the mechanical charac-
teristics likely to be detrimental to the safety of the pressure equipment.
3.1.2.Permanentjoining
Permanent joints and adjacent zones must be free of any surface or
internal defects detrimental to the safety of the equipment.
The properties of permanent joints must meet the minimum properties
specified for the materials to be joined unless other relevant property
values are specifically taken into account in the design calculations.
For pressure equipment, permanent joining of components which contri-
bute to the pressure resistance of equipment and components which are
directly attached to them must be carried out by suitably qualified
personnel according to suitable operating procedures.
For pressure equipment in categories II, III and IV, operating procedures
and personnel must be approved by a competent third party which, at
the manufacturer's discretion, may be:
— a notified body,
— a third-party organization recognized by a Member State as provided
for in Article 13.
To carry out these approvals the third party must perform examinations
and tests as set out in the appropriate harmonized standards or equiva-
lent examinations and tests or must have them performed.
3.1.3.Non-destructive tests
For pressure equipment, non-destructive tests of permanent joints must
be carried out by suitable qualified personnel. For pressure equipment
in categories III and IV, the personnel must be approved by a third-party
organization recognized by a Member State pursuant to Article 13.1997L0023 — EN — 29.07.1997 — 000.001 — 23
▼B
3.1.4.Heattreatment
Where there is a risk that the manufacturing process will change the
material properties to an extent which would impair the safety of the
pressure equipment, suitable heat treatment must be applied at the
appropriate stage of manufacture.
3.1.5.Traceability
Suitable procedures must be established and maintained for identifying
the material making up the components of the equipment which contri-
bute to pressure resistance by suitable means from receipt, through
production, up to the final test of the manufactured pressure equipment.
3.2.Finalassessment
Pressure equipment must be subjected to final assessment as described
below.
3.2.1.Finalinspection
Pressure equipment must undergo a final inspection to assess visually
and by examination of the accompanying documents compliance with
the requirements of the Directive. Test carried out during manufacture
may be taken into account. As far as is necessary on safety grounds,
the final inspection must be carried out internally and externally on
every part of the equipment, where appropriate in the course of manu-
facture (e.g. where examination during the final inspection is no longer
possible).
3.2.2.Prooftest
Final assessment of pressure equipment must include a test for the pres-
sure containment aspect, which will normally take the form of a
hydrostatic pressure test at a pressure at least equal, where appropriate,
to the value laid down in 7.4.
For category I series-produced pressure equipment, this test may be
performed on a statistical basis.
Where the hydrostatic pressure test is harmful or impractical, other tests
of a recognized value may be carried out. For tests other than the hydro-
static pressure test, additional measures, such as non-destructive tests orother methods of equivalent validity, must be applied before those tests
are carried out.
3.2.3.Inspectionofsafetydevices
For assemblies, the final assessment must also include a check of the
safety devices intended to check full compliance with the requirements
referred to in 2.10.
3.3.Markingandlabelling
In addition to the CE marking referred to in Article 15, the following
information must be provided:
(a) for all pressure equipment:
— the name and address or other means of identification of the
manufacturer and, where appropriate, of his authorized represen-
tative established within the Community,
— the year of manufacture,— identification of the pressure equipment according to its nature,
such as type, series or batch identification and serial number,
— essential maximum/minimum allowable limits;
(b) depending on the type of pressure equipment, further information
necessary for safe installation, operation or use and, where applic-
able, maintenance and periodic inspection such as:
— the volume V of the pressure equipment in L,
— the nominal size for piping DN,— the test pressure PT applied in bar and date,— safety device set pressure in bar,— output of the pressure equipment in kW,— supply voltage in V (volts),— intended use,— filling ratio kg/L,— maximum filling mass in kg,— tare mass in kg,1997L0023 — EN — 29.07.1997 — 000.001 — 24
▼B
— the product group;
(c) where necessary, warnings fixed to the pressure equipment drawing
attention to misuse which experience has shown might occur.
The CE marking and the required information must be given on the
pressure equipment or on a dataplate firmly attached to it, with the
following exceptions:
— where applicable, appropriate documentation may be used to avoid
repetitive marking of individual parts such as piping components,
intended for the same assembly. This applies to CE marking and
other marking and labelling referred to in this Annex;
— where the pressure equipment is too small, e.g. accessories, the
information referred to in (b) may be given on a label attached to
that pressure equipment;
— labelling or other adequate means may be used for the mass to be
filled and the warnings referred to in (c), provided it remains legible
for the appropriate period of time.
3.4.Operatinginstructions
(a) When pressure equipment is placed on the market, it must be
accompanied, as far as relevant, with instructions for the user,
containing all the necessary safety information relating to:
— mounting including assembling of different pieces of pressure
equipment,
— putting into service,
— use,
— maintenance including checks by the user;
(b) Instructions must cover information affixed to the pressure equip-
ment in accordance with 3.3, with the exception of serial
identification, and must be accompanied, where appropriate, by the
technical documents, drawings and diagrams necessary for a full
understanding of these instructions;
(c) If appropriate, these instructions must also refer to hazards arising
from misuse in accordance with 1.3 and particular features of the
design in accordance with 2.2.3.
4. MATERIALS
Materials used for the manufacture of pressure equipment must be
suitable for such application during the scheduled lifetime unless repla-
cement is foreseen.
Welding consumables and other joining materials need fulfil only the
relevant requirements of 4.1, 4.2 (a) and the first paragraph of 4.3, in
an appropriate way, both individually and in a joined structure.
4.1. Materials for pressurized parts must:
(a) have appropriate properties for all operating conditions which are
reasonably foreseeable and for all test conditions, and in particular
they should be sufficiently ductile and tough. Where appropriate,
the characteristics of the materials must comply with the require-
ments of 7.5. Moreover, due care should be exercised in particular
in selecting materials in order to prevent brittle-type fracture where
necessary; where for specific reasons brittle material has to be used
appropriate measures must be taken;
(b) be sufficiently chemically resistant to the fluid contained in the
pressure equipment; the chemical and physical properties necessary
for operational safety must not be significantly affected within the
scheduled lifetime of the equipment;
(c) not be significantly affected by ageing;
(d) be suitable for the intended processing procedures;
(e) be selected in order to avoid significant undesirable effects when the
various materials are put together.
4.2. (a) The pressure equipment manufacturer must define in an appropriate
manner the values necessary for the design calculations referred to
in 2.2.3 and the essential characteristics of the materials and their
treatment referred to in 4.1;
(b) the manufacturer must provide in his technical documentation
elements relating to compliance with the materials specifications of
the Directive in one of the following forms:
— by using materials which comply with harmonized standards,1997L0023 — EN — 29.07.1997 — 000.001 — 25
▼B
— by using materials covered by a European approval of pressure
equipment materials in accordance with Article 11,
— by a particular material appraisal;
(c) for pressure equipment in categories III and IV, particular appraisal
as referred to in the third indent of (b) must be performed by the
notified body in charge of conformity assessment procedures for
the pressure equipment.
4.3. The equipment manufacturer must take appropriate measures to ensure
that the material used conforms with the required specification. In parti-
cular, documentation prepared by the material manufacturer affirming
compliance with a specification must be obtained for all materials.
For the main pressure-bearing parts of equipment in categories II, III
and IV, this must take the form of a certificate of specific product
control.
Where a material manufacturer has an appropriate quality-assurance
system, certified by a competent body established within the Community
and having undergone a specific assessment for materials, certificates
issued by the manufacturer are presumed to certify conformity with the
relevant requirements of this section.
SPECIFIC PRESSURE EQUIPMENT REQUIREMENTS
In addition to the applicable requirements of sections 1 to 4, the following
requirements apply to the pressure equipment covered by sections 5 and 6.
5. FIRED OR OTHERWISE HEATED PRESSURE EQUIPMENT WITH
A RISK OF OVERHEATING AS REFERRED TO IN ARTICLE 3 (1)
This pressure equipment includes:
— steam and hot-water generators as referred to in Article 3, section
1.2, such as fired steam and hot-water boilers, superheaters and
reheaters, waste-heat boilers, waste incineration boilers, electrode or
immersion-type electrically heated boilers, pressure cookers, together
with their accessories and where applicable their systems for treat-
ment of feedwater and for fuel supply, and
— process-heating equipment for other than steam and hot water
generation falling under Article 3, section 1.1, such as heaters for
chemical and other similar processes and pressurized food-proces-
sing equipment.
This pressure equipment must be calculated, designed and constructed
so as to avoid to minimize risks of a significant loss of containment
from overheating. In particular it must be ensured, where applicable,
that:
(a) appropriate means of protection are provided to restrict operating
parameters such as heat input, heat take-off and, where applicable,
fluid level so as to avoid any risk of local and general overheating,
(b) sampling points are provided where required to allow evaluation of
the properties of the fluid so as to avoid risks related to deposits
and/or corrosion,
(c) adequate provisions are made to eliminate risks of damage from
deposits,
(d) means of safe removal of residual heat after shutdown are provided,
(e) steps are taken to avoid a dangerous accumulation of ignitable
mixtures of combustible substances and air, or flame blowback.
6. PIPING AS REFERRED TO IN ARTICLE 3, SECTION 1.3
Design and construction must ensure:
(a) that the risk of overstressing from inadmissible free movement or
excessive forces being produced, e.g. on flanges, connections,
bellows or hoses, is adequately controlled by means such as support,
constraint, anchoring, alignment and pre-tension;
(b) that where there is a possibility of condensation occurring inside
pipes for gaseous fluids, means are provided for drainage and
removal of deposits from low areas to avoid damage from water
hammer or corrosion;
(c) that due consideration is given to the potential damage from turbu-
lence and formation of vortices; the relevant parts of 2.7 are
applicable;1997L0023 — EN — 29.07.1997 — 000.001 — 26
▼B
(d) that due consideration is given to the risk of fatigue due to vibra-
tions in pipes;
(e) that, where fluids of Group 1 are contained in the piping, appro-
priate means are provided to isolate ‘take-off’ pipes the size of
which represents a significant risk;
(f) that the risk of inadvertent discharge is minimized; the take-off
points must be clearly marked on the permanent side, indicating
the fluid contained;
(g) that the position and route of underground piping is at least recorded
in the technical documentation to facilitate safe maintenance,
inspection or repair.
7. SPECIFIC QUANTITATIVE REQUIREMENTS FOR CERTAIN
PRESSURE EQUIPMENT
The following provisions apply as a general rule. However, where they
are not applied, including in cases where materials are not specifically
referred to and no harmonized standards are applied, the manufacturer
must demonstrate that appropriate measures have been taken to achieve
an equivalent overall level of safety.
This section is an integral part of Annex I. The provisions laid down in
this section supplement the essential requirements of sections 1 to 6 for
the pressure equipment to which they apply.
7.1.Allowablestresses
7.1.1.Symbols
Re/t, yield limit, indicates the value at the calculation temperature of:
— the upper flow limit for a material presenting upper and lower flow
limits,
— the 1,0 % proof strength of austenitic steel and non-alloyed alumi-
nium,
— the 0,2 % proof strength in other cases.
Rm/20indicates the minimum value of the ultimate strength 20 ºC.
Rm/tdesignates the ultimate strength at the calculation temperature.
7.1.2. The permissible general membrane stress for predominantly static loads
and for temperatures outside the range in which creep is significant must
not exceed the smaller of the following values, according to the material
used:
— in the case of ferritic steel including normalized (normalized rolled)
steel and excluding fine-grained steel and specially heat-treated
steel,2/3of Re/tand5/12of Rm/20;
— in the case of austenitic steel:
— if its elongation after rupture exceeds 30 %,2/3of Re/t
— or, alternatively, and if its elongation after rupture exceeds 35 %,5/6of Re/tand1/3of Rm/t;
— in the case of non-alloy or low-alloy cast steel,10/19of Re/tand1/3of
Rm/20;
— in the case of aluminium,2/3of Re/t;
— in the case of aluminium alloys excluding precipitation hardening
alloys2/3of Re/tand5/12of Rm/20.
7.2.Jointcoefficients
For welded joints, the joint coefficient must not exceed the following
values:
— for equipment subject to destructive and non-destructive tests which
confirm that the whole series of joints show no significant defects: 1,
— for equipment subject to random non-destructive testing: 0,85,— for equipment not subject to non-destructive testing other than visual
inspection: 0,7.
If necessary, the type of stress and the mechanical and technological
properties of the joint must also be taken into account.
7.3.Pressurelimitingdevices,particularlyforpressurevessels
The momentary pressure surge referred to in 2.11.2 must be kept to 10 %
of the maximum allowable pressure.1997L0023 — EN — 29.07.1997 — 000.001 — 27
▼B
7.4.Hydrostatictestpressure
For pressure vessels, the hydrostatic test pressure referred to in 3.2.2
must be no less than:
— that corresponding to the maximum loading to which the pressure
equipment may be subject in service taking into account its
maximum allowable pressure and its maximum allowable tempera-
ture, multiplied by the coefficient 1,25, or
— the maximum allowable pressure multiplied by the coefficient 1,43,
whichever is the greater.
7.5.Material characteristics
Unless other values are required in accordance with other criteria that
must be taken into account, a steel is considered as sufficiently ductile
to satisfy 4.1 (a) if, in a tensile test carried out by a standard procedure,
its elongation after rupture is no less than 14 % and its bending rupture
energy measured on an ISO V test-piece is no less than 27 J, at a
temperature not greater than 20 ºC but not higher than the lowest sched-
uled operating temperature.1997L0023 — EN — 29.07.1997 — 000.001 — 28
▼B
ANNEX II
CONFORMITYASSESSMENTTABLES
1. The references in the tables to categories of modules are the following:
I = Module A
II = Module A1, D1, E1
III = Modules B1 + D, B1 + F, B + E, B + C1, H
IV = Modules B + D, B + F, G, H1
2. The safety accessories defined in Article 1, Section 2.1.3, and referred to in
Article 3, Section 1.4, are classified in category IV. However, by way of
exception, safety accessories manufactured for specific equipment may be
classified in the same category as the equipment they protect.
3. The pressure accessories defined in Article 1, Section 2.1.4, and referred to
in Article 3, Section 1.4, are classified on the basis of:
— their maximum allowable pressure PS, and
— their volume V or their nominal size DN, as appropriate, and
— the groupof fluids for which they are intended,
and the appropriate table for vessels or piping is to be used to determine the
conformity assessment category.
Where both the volume and the nominal size are considered appropriate in
the second indent, the pressure accessory must be classified in the highest
category.
4. The demarcation lines in the following conformity assessment tables indicate
the upper limit for each category.1997L0023 — EN — 29.07.1997 — 000.001 — 29
▼B
Table1
Vesselsreferred toinArticle3,Section1.1(a),firstindent
Exceptionally, vessels intended to contain an unstable gas and falling within categories I or II on
the basis of table 1 must be classified in category III.1997L0023 — EN — 29.07.1997 — 000.001 — 30
▼B
Table2
Vesselsreferred toinArticle3,Section1.1(a),secondindent
Exceptionally, portable extinguishers and bottles for breathing equipment must be classified at least
in category III.1997L0023 — EN — 29.07.1997 — 000.001 — 31
▼B
Table3
Vesselsreferred toinArticle3,Section1.1(b),firstindent1997L0023 — EN — 29.07.1997 — 000.001 — 32
▼B
Table4
Vesselsreferred toinArticle3,Section1.1(b),secondindent
Exceptionally, assemblies intended for generating warm water as referred to in Article 3, Section
2.3, must be subject either to an EC design examination (Module B1) with respect to their confor-
mity with the essential requirements referred to in Sections 2.10, 2.11, 3.4, 5 (a) and 5 (d) of
Annex I, or to full quality assurance (Module H).1997L0023 — EN — 29.07.1997 — 000.001 — 33
▼B
Table5
Pressureequipmentreferred toinArticle3,Section1.2
Exceptionally, the design of pressure-cookers must be subject to a conformity assessment proce-
dure equivalent to at least one of the category III modules.1997L0023 — EN — 29.07.1997 — 000.001 — 34
▼B
Table6
Pipingreferred toinArticle 3,Section1.3(a),firstindent
Exceptionally, piping intended for unstable gases and falling within categories I or II on the basis
of Table 6 must be classified in category III.1997L0023 — EN — 29.07.1997 — 000.001 — 35
▼B
Table7
Pipingreferred toinArticle 3,Section1.3(a),secondindent
Exceptionally, all piping containing fluids at a temperature greater than 350 ºC and falling within
category II on the basis of Table 7 must be classified in category III.1997L0023 — EN — 29.07.1997 — 000.001 — 36
▼B
Table8
Pipingreferred toinArticle 3,Section1.3(b),firstindent1997L0023 — EN — 29.07.1997 — 000.001 — 37
▼B
Table9
Pipingreferred toinArticle 3,Section1.3(b),secondindent1997L0023 — EN — 29.07.1997 — 000.001 — 38
▼B
ANNEX III
CONFORMITYASSESSMENTPROCEDURES
The obligations arising from the provisions on pressure equipment in this Annex
also apply to assemblies.
ModuleA(internalproductioncontrol)
1. This module describes the procedure whereby the manufacturer or his
authorized representative established within the Community who carries
out the obligations laid down in section 2 ensures and declares that pressure
equipment satisfies the requirements of the Directive which apply to it. The
manufacturer, or his authorized representative established within the
Community, must affix the CE marking to each item of pressure equipment
and draw upa written declaration of conformity.
2. The manufacturer must draw upthe technical documentation described in
section 3 and either the manufacturer or his authorized representative estab-
lished within the Community must keepit at the disp osal of the relevant
national authorities for inspection purposes for a period of ten years after
the last of the pressure equipment has been manufactured.
Where neither the manufacturer nor his authorized representative is estab-
lished within the Community, the obligation to keepthe technical
documentation available is the responsibility of the person who places the
pressure equipment on the Community market.
3. The technical documentation must enable an assessment to be made of the
conformity of the pressure equipment with the requirements of the Direc-
tive which apply to it. It must, as far as is relevant for such assessment,
cover the design, manufacture and operation of the pressure equipment
and contain:
— a general description of the pressure equipment,
— conceptual design and manufacturing drawings and diagrams of compo-
nents, sub-assemblies, circuits, etc.,
— descriptions and explanations necessary for an understanding of the said
drawings and diagrams and the operation of the pressure equipment,
— a list of the standards referred to in Article 5, applied in full or in part,
and a description of the solutions adopted to meet the essential require-
ments of the Directive where the standards referred to in Article 5 have
not been applied,
— results of design calculations made, examinations carried out, etc.,
— test reports.
4. The manufacturer, or his authorized representative established within the
Community, must keepa cop y of the declaration of conformity with the
technical documentation.
5. The manufacturer must take all measures necessary to ensure that the
manfacturing process requires the manufactured pressure equipment to
comply with the technical documentation referred to in section 2 and with
the requirements of the Directive which apply to it.
Module A1 (internal manufacturing checks with monitoring of the final
assessment)
In addition to the requirements of module A, the following applies.
Final assessment must be performed by the manufacturer and monitored by
means of unexpected visits by a notified body chosen by the manufacturer.
During such visits, the notified body must:
— establish that the manufacturer actually performs final assessment in accor-
dance with section 3.2 of Annex I,
— take samples of pressure equipment at the manufacturing or storage premises
in order to conduct checks. The notified body assesses the number of items
of equipment to sample and whether it is necessary to perform, or have
performed, all or part of the final assessment of the pressure equipment
samples.
Should one or more of the items of pressure equipment not conform, the notified
body must take appropriate measures.
On the responsibility of the notified body, the manufacturer must affix the
former's identification number on each item of pressure equipment.1997L0023 — EN — 29.07.1997 — 000.001 — 39
▼B
ModuleB(ECtype-examination)
1. This module describes the part of the procedure by which a notified body
ascertains and attests that a representative example of the production in
question meets the provisions of the Directive which apply to it.
2. The application for EC type-examination must be lodged by the manufac-
turer or by his authorized representative established within the Community
with a single notified body of his choice.
The application must include:
— the name and address of the manufacturer and, if the application is
lodged by the authorized representative, his name and address as well,
— a written declaration that the same application has not been lodged with
any other notified body,
— the technical documentation described in section 3.
The applicant must place at the disposal of the notified body a representa-
tive example of the production envisaged, hereinafter called ‘type’. The
notified body may request further examples should the test programme so
require.
A type may cover several versions of pressure equipment provided that the
differences between the versions do not affect the level of safety.
3. The technical documentation must enable an assessment to be made of the
conformity of the pressure equipment with the requirements of the Direc-
tive which apply to it. It must, as far as is relevant for such assessment,
cover the design, manufacture and operation of the pressure equipment
and contain:
— a general description of the type,
— conceptual design and manufacturing drawings and diagrams of compo-
nents, sub-assemblies, circuits, etc.,
— descriptions and explanations necessary for an understanding of the said
drawings and diagrams and the operation of the pressure equipment,
— a list of the standards referred to in Article 5, applied in full or in part,
and descriptions of the solutions adopted to meet the essential require-
ments of the Directive where the standards referred to in Article 5 have
not been applied,
— results of design calculations made, examinations carried out, etc.,— test reports,— information concerning the tests provided for in manufacture,
— information concerning the qualifications or approvals required under
sections 3.1.2 and 3.1.3 of Annex I.
4. The notified body must:
4.1. examine the technical documentation, verify that the type has been manu-
factured in conformity with it and identify the components designed in
accordance with the relevant provisions of the standards referred to in
Article 5, as well as those designed without applying the provisions of
those standards.
In particular, the notified body must:
— examine the technical documentation with respect to the design and the
manufacturing procedures,
— assess the materials used where these are not in conformity with the
relevant harmonized standards or with a European approval for pressure
equipment materials, and check the certificate issued by the material
manufacturer in accordance with section 4.3 of Annex I,
— approve the procedures for the permanent joining of pressure equipment
parts, or check that they have been previously approved in accordance
with section 3.1.2 of Annex I,
— verify that the personnel undertaking the permanent joining of pressure
equipment parts and the non-destructive tests are qualified or approved
in accordance with sections 3.1.2 or 3.1.3 of Annex I.
4.2. perform or have performed the appropriate examinations and necessary
tests to establish whether the solutions adopted by the manufacturer meet
the essential requirements of the Directive where the standards referred to
in Article 5 have not been applied.
4.3. perform or have performed the appropriate examinations and necessary
tests to establish whether, where the manufacturer has chosen to apply the
relevant standards, these have actually been applied.1997L0023 — EN — 29.07.1997 — 000.001 — 40
▼B
4.4. agree with the applicant the location where the examinations and necessary
tests are to be carried out.
5. Where the type satisfies the provisions of the Directive which apply to it,
the notified body must issue an EC type-examination certificate to the
applicant. The certificate, which should be valid for ten years and be
renewable, must contain the name and address of the manufacturer, the
conclusions of the examination and the necessary data for identification of
the approved type.
A list of the relevant parts of the technical documentation must be annexed
to the certificate and a copy kept by the notified body.
If the notified body refuses to issue an EC type-examination certificate to
the manufacturer or to his authorized representative established within the
Community, that body must provide detailed reasons for such refusal.
Provision must be made for an appeals procedure.
6. The applicant must inform the notified body that holds the technical docu-
mentation concerning the EC type-examination certificate of all
modifications to the approved pressure equipment; these are subject to
additional approval where they may affect conformity with the essential
requirements or the prescribed conditions for use of the pressure equip-
ment. This additional approval must be given in the form of an addition
to the original EC type-examination certificate.
7. Each notified body must communicate to the Member States the relevant
information concerning EC type-examination certificates which it has with-
drawn, and, on request, those it has issued.
Each notified body must also communicate to the other notified bodies the
relevant information concerning the EC type-examination certificates it has
withdrawn or refused.
8. The other notified bodies may receive copies of the EC type-examination
certificates and/or their additions. The annexes to the certificates must be
held at the disposal of the other notified bodies.
9. The manufacturer, or his authorized representative established within the
Community, must keepwith the technical documentation cop ies of EC
type-examination certificates and their additions for a period of ten years
after the last of the pressure equipment has been manufactured.
Where neither the manufacturer nor his authorized representative is estab-
lished within the Community, the obligation to keepthe technical
documentation available is the responsibility of the person who places the
product on the Community market.
ModuleB1(ECdesign-examination)1. This module describes the part of the procedure whereby a notified body
ascertains and attests that the design of an item of pressure equipment
meets the provisions of the Directive which apply to it.
The experimental design method provided for in section 2.2.4 of Annex I
may not be used in the context of this module.
2. The manufacturer, or his authorized representative established within the
Community, must lodge an application for EC design examination with a
single notified body.
The application must include:
— the name and address of the manufacturer and, if the application is
lodged by the authorized representative, his name and address as well,
— a written declaration that the same application has not been lodged with
any other notified body,
— the technical documentation described in section 3.
The application may cover several versions of the pressure equipment
provided that the differences between the versions do not affect the level
of safety.
3. The technical documentation must enable an assessment to be made of the
conformity of the pressure equipment with the requirements of the Direc-
tive which apply to it. It must, as far as is relevant for such assessment,
cover the design, manufacture and operation of the pressure equipment
and contain:
— a general description of the pressure equipment,
— conceptual design and manufacturing drawings and diagrams of compo-
nents, sub-assemblies, circuits, etc.,1997L0023 — EN — 29.07.1997 — 000.001 — 41
▼B
— descriptions and explanations necessary for an understanding of the said
drawings and diagrams and the operation of the pressure equipment,
— a list of the standards referred to in Article 5, applied in full or in part,
and descriptions of the solutions adopted to meet the essential require-
ments of the Directive where the standards referred to in Article 5 have
not been applied,
— the necessary supporting evidence for the adequacy of the design solu-
tion, in particular where the standards referred to in Article 5 have not
been applied in full; this supporting evidence must include the results of
tests carried out by the appropriate laboratory of the manufacturer or on
his behalf,
— results of design calculations made, examinations carried out, etc.,
— information regarding the qualifications or approvals required under
sections 3.1.2 and 3.1.3 of Annex I.
4. The notified body must:4.1. examine the technical documentation and identify the components which
have been designed in accordance with the relevant provisions of the stan-
dards referred to in Article 5, as well as those which have been designed
without applying the relevant provisions of those standards.
In particular, the notified body must:
— assess the materials where these are not in conformity with the relevant
harmonized standards or with a European approval for pressure equip-
ment materials,
— approve the procedures for the permanent joining of pressure equipment
parts, or check that they have been previously approved in accordance
with section 3.1.2 of Annex I,
— verify that the personnel undertaking the permanent joining of pressure
equipment parts and the non-destructive tests are qualified or approved
in accordance with sections 3.1.2 and 3.1.3 of Annex I.
4.2. perform the necessary examinations to establish whether the solutions
adopted by the manufacturer meet the essential requirements of the Direc-
tive where the standards referred to in Article 5 have not been applied.
4.3. perform the necessary examinations to establish whether, where the manu-
facturer has chosen to apply the relevant standards, these have actually
been applied.
5. Where the design meets the provisions of the Directive which apply to it,
the notified body must issue an EC design-examination certificate to the
applicant. The certificate must contain the name and address of the appli-
cant, the conclusions of the examination, conditions for its validity and the
necessary data for identification of the approved design.
A list of the relevant parts of the technical documentation must be annexed
to the certificate and a copy kept by the notified body.
If the notified body refuses to issue an EC design-examination certificate to
the manufacturer or to his authorized representative established within the
Community, that body must provide detailed reasons for such refusal.
Provision must be made for an appeals procedure.
6. The applicant must inform the notified body that holds the technical docu-
mentation concerning the EC design-examination certificate of all
modifications to the approved design; these are subject to additional
approval where such changes may affect the conformity of the pressure
equipment with the essential requirements of the Directive or the prescribed
conditions for use of the equipment. This additional approval must be given
in the form of an addition to the original EC design-examination certificate.
7. Each notified body must communicate to the Member States the relevant
information concerning EC design-examination certificates which it has
withdrawn, and, on request, those it has issued.
Each notified body must also communicate to the other notified bodies the
relevant information concerning the EC design-examination certificates it
has withdrawn or refused.
8. The other notified bodies may on request obtain the relevant information
concerning:
— the EC design-examination certificates and additions granted,
— the EC design-examination certificates and additions withdrawn.
9. The manufacturer, or his authorized representative established within the
Community, must keepwith the technical documentation referred to in
section 3 copies of EC design-examination certificates and their additions1997L0023 — EN — 29.07.1997 — 000.001 — 42
▼B
for a period of ten years after the last of the pressure equipment has been
manufactured.
Where neither the manufacturer nor his authorized representative is estab-
lished within the Community, the obligation to keepthe technical
documentation available is the responsibility of the person who places the
product on the Community market.
ModuleC1(conformitytotype)1. This module describes that part of the procedure whereby the manufacturer,
or his authorized representative established within the Community, ensures
and declares that pressure equipment is in conformity with the type as
described in the EC type-examination certificate and satisfies the require-
ments of the Directive which apply to it. The manufacturer, or his
authorized representative established within the Community, must affix
the CE marking to each item of pressure equipment and draw up a written
declaration of conformity.
2. The manufacturer must take all measures necessary to ensure that the
manufacturing process requires the manufactured pressure equipment to
comply with the type as described in the EC type-examination certificate
and with the requirements of the Directive which apply to it.
3. The manufacturer, or his authorized representative established within the
Community, must keep a copy of the declaration of conformity for a period
of ten years after the last of the pressure equipment has been manufactured.
Where neither the manufacturer nor his authorized representative is estab-
lished within the Community, the obligation to keepthe technical
documentation available is the responsibility of the person who places the
pressure equipment on the Community market.
4. Final assessment must be subject to monitoring in the form of unexpected
visits by a notified body chosen by the manufacturer.
During such visits, the notified body must:
— establish that the manufacturer actually performs final assessment in
accordance with section 3.2 of Annex I,
— take samples of pressure equipment at the manufacturing or storage
premises in order to conduct checks. The notified body must assess
the number of items of equipment to sample and whether it is necessary
to perform, or have performed, all or part of final assessment on the
pressure equipment samples.
Should one or more of the items of pressure equipment not conform, the
notified body must take appropriate measures.
On the responsibility of the notified body, the manufacturer must affix the
former's identification number on each item of pressure equipment.
ModuleD(productionqualityassurance)1. This module describes the procedure whereby the manufacturer who satis-
fies the obligations of section 2 ensures and declares that the pressure
equipment concerned is in conformity with the type described in the EC
type-examination certificate or EC design-examination certificate and satis-
fies the requirements of the Directive which apply to it. The manufacturer,
or his authorized representative established within the Community, must
affix the CE marking to each item of pressure equipment and draw up a
written declaration of conformity. The CE marking must be accompanied
by the identification number of the notified body responsible for surveil-
lance as specified in section 4.
2. The manufacturer must operate an approved quality system for production,
final inspection and testing as specified in section 3 and be subject to
surveillance as specified in section 4.
3.Qualitysystem
3.1. The manufacturer must lodge an application for assessment of his quality
system with a notified body of his choice.
The application must include:
— all relevant information on the pressure equipment concerned,
— the documentation concerning the quality system,— the technical documentation for the approved type and a copy of the EC
type-examination certificate or EC design-examination certificate.
3.2. The quality system must ensure compliance of the pressure equipment with
the type described in the EC type-examination certificate or EC design-1997L0023 — EN — 29.07.1997 — 000.001 — 43
▼B
examination certificate and with the requirements of the Directive which
apply to it.
All the elements, requirements and provisions adopted by the manufacturer
must be documented in a systematic and orderly manner in the form of
written policies, procedures and instructions. This quality system documen-
tation must permit a consistent interpretation of the quality programmes,
plans, manuals and records.
It must contain in particular an adequate description of:
— the quality objectives and the organizational structure, responsibilities
and powers of the management with regard to the quality of the pres-
sure equipment,
— the manufacturing, quality control and quality assurance techniques,
processes and systematic measures that will be used, particularly the
procedures used for the permanent joining of parts as approved in
accordance with section 3.1.2 of Annex I,
— the examinations and tests that will be carried out before, during and
after manufacture, and the frequency with which they will be carried
out,
— the quality records, such as inspection reports and test data, calibration
data, reports concerning the qualifications or approvals of the personnel
concerned, particularly those of the personnel undertaking the joining of
parts and the non-destructive tests in accordance with sections 3.1.2 and
3.1.3 of Annex I,
— the means of monitoring the achievement of the required quality and
the effective operation of the quality system.
3.3. The notified body must assess the quality system to determine whether it
satisfies the requirements referred to in 3.2. The elements of the quality
system which conform to the relevant harmonized standard are presumed
to comply with the corresponding requirements referred to in 3.2.
The auditing team must have at least one member with experience of asses-
sing the pressure equipment technology concerned. The assessment
procedure must include an inspection visit to the manufacturer's premises.
The decision must be notified to the manufacturer. The notification must
contain the conclusions of the examination and the reasoned assessment
decision. Provision must be made for an appeals procedure.
3.4. The manufacturer must undertake to fulfil the obligations arising out of the
quality system as approved and to ensure that it remains satisfactory and
efficient.
The manufacturer, or his authorized representative established within the
Community, must inform the notified body that has approved the quality
system of any intended adjustment to the quality system.
The notified body must assess the proposed changes and decide whether
the amended quality system will still satisfy the requirements referred to
in 3.2 or whether a reassessment is required.
It must notify its decision to the manufacturer. The notification must
contain the conclusions of the examination and the reasoned assessment
decision.
4.Surveillance undertheresponsibilityofthenotifiedbody
4.1. The purpose of surveillance is to make sure that the manufacturer duly
fulfils the obligations arising out of the approved quality system.
4.2. The manufacturer must allow the notified body access for inspection
purposes to the locations of manufacture, inspection, testing and storage
and provide it with all necessary information, in particular:
— the quality system documentation,
— the quality records, such as inspection reports and test data, calibration
data, reports concerning the qualifications of the personnel concerned,
etc.
4.3. The notified body must carry out periodic audits to make sure that the
manufacturer maintains and applies the quality system and provide the
manufacturer with an audit report. The frequency of periodic audits must
be such that a full reassessment is carried out every three years.
4.4. In addition the notified body may pay unexpected visits to the manufac-
turer. The need for such additional visits, and the frequency thereof, will
be determined on the basis of a visit control system operated by the noti-1997L0023 — EN — 29.07.1997 — 000.001 — 44
▼B
fied body. In particular, the following factors must be considered in the
visit control system:
— the category of the equipment,
— the results of previous surveillance visits,— the need to follow upcorrective action,— special conditions linked to the approval of the system, where applic-
able,
— significant changes in manufacturing organization, policy or techniques.
During such visits the notified body may, if necessary, carry out or have
carried out tests to verify that the quality system is functioning correctly.
The notified body must provide the manufacturer with a visit report and,if a test has taken place, with a test report.
5. The manufacturer must, for a period of ten years after the last of the pres-
sure equipment has been manufactured, hold at the disposal of the national
authorities:
— the documentation referred to in the second indent of 3.1;
— the adjustments referred to in the second paragraph of 3.4;— the decisions and reports from the notified body which are referred to in
the last paragraph of 3.3, the last paragraph of 3.4, and in 4.3 and 4.4.
6. Each notified body must communicate to the Member States the relevant
information concerning the quality system approvals which it has with-
drawn, and, on request, those it has issued.
Each notified body must also communicate to the other notified bodies the
relevant information concerning the quality system approvals it has with-
drawn or refused.
ModuleD1(productionqualityassurance)1. This module describes the procedure whereby the manufacturer who satis-
fies the obligations of section 3 ensures and declares that the items of
pressure equipment concerned satisfy the requirements of the Directive
which apply to them. The manufacturer, or his authorized representative
established within the Community, must affix the CE marking to each
item of pressure equipment and draw up a written declaration of confor-
mity. The CE marking must be accompanied by the identification number
of the notified body responsible for surveillance as specified in section 5.
2.The manufacturer must draw up the technical documentation described
below.
The technical documentation must enable an assessment to be made of the
conformity of the pressure equipment with the requirements of the Direc-
tive which apply to it. It must, as far as is relevant for such assessment,
cover the design, manufacture and operation of the pressure equipment
and contain:
— a general description of the pressure equipment,
— conceptual design and manufacturing drawings and diagrams of compo-
nents, sub-assemblies, circuits, etc.,
— descriptions and explanations necessary for an understanding of the said
drawings and diagrams and the operation of the pressure equipment,
— a list of the standards referred to in Article 5, applied in full or in part,
and descriptions of the solutions adopted to meet the essential require-
ments of the Directive where the standards referred to in Article 5 have
not been applied,
— results of design calculations made, examinations carried out, etc.,— test reports.
3. The manufacturer must operate an approved quality system for production,
final inspection and testing as specified in section 4 and be subject to
surveillance as specified in section 5.
4.Qualitysystem
4.1. The manufacturer must lodge an application for assessment of his quality
system with a notified body of his choice.
The application must include:
— all relevant information on the pressure equipment concerned,
— the documentation concerning the quality system.
4.2. The quality system must ensure compliance of the pressure equipment with
the requirements of the Directive which apply to it.1997L0023 — EN — 29.07.1997 — 000.001 — 45
▼B
All the elements, requirements and provisions adopted by the manufacturer
must be documented in a systematic and orderly manner in the form of
written policies, procedures and instructions. This quality system documen-
tation must permit a consistent interpretation of the quality programmes,
plans, manuals and records.
It must contain in particular an adequate description of:
— the quality objectives and the organizational structure, responsibilities
and powers of the management with regard to the quality of the pres-
sure equipment,
— the manufacturing, quality control and quality assurance techniques,
processes and systematic measures that will be used, particularly the
procedures used for the permanent joining of parts as approved in
accordance with section 3.1.2 of Annex I,
— the examinations and tests that will be carried out before, during and
after manufacture, and the frequency with which they will be carried
out,
— the quality records, such as inspection reports and test data, calibration
data, reports concerning the qualifications or approvals of the personnel
concerned, particularly those of the personnel undertaking the perma-
nent joining of parts in accordance with section 3.1.2 of Annex I,
— the means of monitoring the achievement of the required quality and
the effective operation of the quality system.
4.3. The notified body must assess the quality system to determine whether it
satisfies the requirements referred to in 4.2. The elements of the quality
system which conform to the relevant harmonized standard are presumed
to comply with the corresponding requirements referred to in 4.2.
The auditing team must have at least one member with experience of asses-
sing the pressure equipment technology concerned. The assessment
procedure must include an inspection visit to the manufacturer's premises.
The decision must be notified to the manufacturer. The notification must
contain the conclusions of the examination and the reasoned assessment
decision. Provision must be made for an appeals procedure.
4.4. The manufacturer must undertake to fulfil the obligations arising out of the
quality system as approved and to ensure that it remains satisfactory and
efficient.
The manufacturer, or his authorized representative established within the
Community, must inform the notified body that has approved the quality
system of any intended adjustment to the quality system.
The notified body must assess the proposed changes and decide whether
the amended quality system will still satisfy the requirements referred to
in 4.2 or whether a reassessment is required.
If must notify its decision to the manufacturer. The notification must
contain the conclusions of the examination and the reasoned assessment
decision.
5.Surveillance undertheresponsibilityofthenotifiedbody
5.1. The purpose of surveillance is to make sure that the manufacturer duly
fulfils the obligations arising out of the approved quality system.
5.2. The manufacturer must allow the notified body access for inspection
purposes to the locations of manufacture, inspection, testing and storage
and provide it with all necessary information, in particular:
— the quality system documentation,
— the quality records, such as inspection reports and test data, calibration
data, reports concerning the qualifications of the personnel concerned,
etc.
5.3. The notified body must carry out periodic audits to make sure that the
manufacturer maintains and applies the quality system and provide the
manufacturer with an audit report. The frequency of periodic audits must
be such that a full reassessment is carried out every three years.
5.4. In addition the notified body may pay unexpected visits to the manufac-
turer. The need for such additional visits, and the frequency thereof, will
be determined on the basis of a visit control system operated by the noti-
fied body. In particular, the following factors must be considered in the
visit control system:
— the category of the equipment,
— the results of previous surveillance visits,— the need to follow upcorrective action,1997L0023 — EN — 29.07.1997 — 000.001 — 46
▼B
— special conditions linked to the approval of the system, where applic-
able,
— significant changes in manufacturing organization, policy or techniques.
During such visits the notified body may, if necessary, carry out or have
carried out tests to verify that the quality system is functioning correctly.
The notified body must provide the manufacturer with a visit report and,
if a test has taken place, with a test report.
6. The manufacturer must, for a period of ten years after the last of the pres-
sure equipment has been manufactured, hold at the disposal of the national
authorities:
— the technical documentation referred to in section 2,
— the documention referred to in the second indent of 4.1,
— the adjustments referred to in the second paragraph of 4.4,
— the decisions and reports from the notified body which are referred to in
the last paragraph of 4.3, the last paragraph of 4.4, and in 5.3 and 5.4.
7. Each notified body must communicate to the Member States the relevant
information concerning the quality system approvals which it has with-
drawn, and, on request, those it has issued.
Each notified body must also communicate to the other notified bodies the
relevant information concerning the quality system approvals it has with-
drawn or refused.
ModuleE(productqualityassurance)1. This module describes the procedure whereby the manufacturer who satis-
fies the obligations of section 2 ensures and declares that the pressure
equipment is in conformity with the type as described in the EC type-
examination certificate and satisfies the requirements of the Directive
which apply to it. The manufacturer, or his authorized representative estab-
lished within the Community, must affix the CE marking to each product
and draw upa written declaration of conformity. The CE marking must
be accompanied by the identification number of the notified body respon-
sible for surveillance as specified in section 4.
2. The manufacturer must operate an approved quality system for the final
pressure equipment inspection and testing as specified in section 3 and be
subject to surveillance as specified in section 4.
3.Qualitysystem
3.1. The manufacturer must lodge an application for assessment of his quality
system for the pressure equipment with a notified body of his choice.
The application must include:
— all relevant information on the pressure equipment concerned,
— the documentation concerning the quality system,
— the technical documentation for the approved type and a copy of the EC
type-examination certificate.
3.2. Under the quality system, each item of pressure equipment must be exam-
ined and appropriate tests as set out in the relevant standard(s) referred to
in Article 5, or equivalent tests, particularly final assessment as referred to
in section 3.2 of Annex I, must be carried out in order to ensure its confor-
mity with the requirements of the Directive which apply to it. All the
elements, requirements and provisions adopted by the manufacturer must
be documented in a systematic and orderly manner in the form of written
policies, procedures and instructions. This quality system documentation
must permit a consistent interpretation of the quality programmes, plans,
manuals and records.
It must contain in particular an adequate description of:
— the quality objectives and the organizational structure, responsibilities
and powers of the management with regard to the quality of the pres-
sure equipment,
— the examinations and tests to be carried out after manufacture,
— the means of monitoring the effective operation of the quality system,
— the quality records, such as inspection reports and test data, calibration
data, reports concerning the qualifications or approvals of the personnel
concerned, particularly those of the personnel undertaking the perma-
nent joining of parts and the non-destructive tests in accordance with
sections 3.1.2 and 3.1.3 of Annex I.
3.3. The notified body must assess the quality system to determine whether it
satisfies the requirements referred to in 3.2. The elements of the quality1997L0023 — EN — 29.07.1997 — 000.001 — 47
▼B
system which conform to the relevant harmonized standard are presumed to
comply with the corresponding requirements referred to in 3.2.
The auditing team must have at least one member with experience of asses-
sing the pressure equipment technology concerned. The assessment
procedure must include an inspection visit to the manufacturer's premises.
The decision must be notified to the manufacturer. The notification must
contain the conclusions of the examination and the reasoned assessment
decision.
3.4. The manufacturer must undertake to discharge the obligations arising from
the quality system as approved and to ensure that it remains satisfactory
and efficient.
The manufacturer, or his authorized representative established within the
Community, must inform the notified body which has approved the quality
system of any intended adjustment to the quality system.
The notified body must assess the proposed changes and decide whether
the modified quality system will still satisfy the requirements referred to
in 3.2 or whether a reassessment is required.
It must notify its decision to the manufacturer. The notification must
contain the conclusions of the examination and the reasoned assessment
decision.
4.Surveillance undertheresponsibilityofthenotifiedbody
4.1. The purpose of surveillance is to make sure that the manufacturer duly
fulfils the obligations arising out of the approved quality system.
4.2. The manufacturer must allow the notified body access for inspection
purposes to the locations of inspection, testing and storage and provide it
with all necessary information, in particular:
— the quality system documentation,
— the technical documentation,— the quality records, such as inspection reports and test data, calibration
data, reports concerning the qualifications of the personnel concerned,
etc.
4.3. The notified body must carry out periodic audits to make sure that the
manufacturer maintains and applies the quality system and provide the
manufacturer with an audit report. The frequency of periodic audits must
be such that a full reassessment is carried out every three years.
4.4. In addition the notified body may pay unexpected visits to the manufac-
turer. The need for such additional visits, and the frequency thereof, will
be determined on the basis of a visit control system operated by the noti-
fied body. In particular, the following factors must be considered in the
visit control system:
— the category of the equipment,
— the results of previous surveillance visits,— the need to follow upcorrective action,— special conditions linked to the approval of the system, where applic-
able,
— significant changes in manufacturing organization, policy or techniques.
During such visits, the notified body may, if necessary, carry out or have
carried out tests to verify that the quality system is functioning correctly.
The notified body must provide the manufacturer with a visit report and,
if a test has taken place, with a test report.
5. The manufacturer must, for a period of ten years after the last of the pres-
sure equipment has been manufactured, hold at the disposal of the national
authorities:
— the documentation referred to in the second indent of 3.1,
— the adjustments referred to in the second paragraph of 3.4,— the decisions and reports from the notified body which are referred to in
the last paragraph of 3.3, the last paragraph of 3.4, and in 4.3 and 4.4.
6. Each notified body must communicate to the Member States the relevant
information concerning the quality system approvals which it has with-
drawn and, on request, those it has issued.
Each notified body must also communicate to the other notified bodies the
relevant information concerning the quality system approvals it has with-
drawn or refused.1997L0023 — EN — 29.07.1997 — 000.001 — 48
▼B
ModuleE1(productqualityassurance)
1. This module describes the procedure whereby the manufacturer who satis-
fies the obligations of section 3 ensures and declares that the pressure
equipment satisfies the requirements of the Directive which apply to it.
The manufacturer, or his authorized representative established within the
Community, must affix the CE marking to each item of pressure equipment
and draw upa written declaration of conformity. The CE marking must be
accompanied by the identification number of the notified body responsible
for surveillance as specified in section 5.
2.The manufacturer must draw up the technical documentation described
below.
The technical documentation must enable an assessment to be made of the
conformity of the pressure equipment with the requirements of the Direc-
tive which apply to it. It must, as far as is relevant for such assessment,
cover the design, manufacture and operation of the pressure equipment
and contain:
— a general description of the pressure equipment,
— conceptual design and manufacturing drawings and diagrams of compo-
nents, sub-assemblies, circuits, etc.,
— descriptions and explanations necessary for an understanding of the said
drawings and diagrams and the operation of the pressure equipment,
— a list of the standards referred to in Article 5, applied in full or in part,
and descriptions of the solutions adopted to meet the essential require-ments of the Directive where the standards referred to in Article 5 have
not been applied,
— results of design calculations made, examinations carried out, etc.,
— test reports.
3. The manufacturer must operate an approved quality system for the final
pressure equipment inspection and testing as specified in section 4 and be
subject to surveillance as specified in section 5.
4.Qualitysystem
4.1. The manufacturer must lodge an application for assessment of his quality
system with a notified body of his choice.
The application must include:
— all relevant information on the pressure equipment concerned,
— the documentation concerning the quality system.
4.2. Under the quality system, each item of pressure equipment must be exam-
ined and appropriate tests as set out in the relevant standard(s) referred to
in Article 5, or equivalent tests, and particularly final assessment as
referred to in section 3.2 of Annex I, must be carried out in order to ensure
its conformity with the requirements of the Directive which apply to it. All
the elements, requirements and provisions adopted by the manufacturer
must be documented in a systematic and orderly manner in the form of
written policies, procedures and instructions. This quality system documen-
tation must permit a consistent interpretation of the quality programmes,
plans, manuals and records.
It must contain in particular an adequate description of:
— the quality objectives and the organizational structure, responsibilities
and powers of the management with regard to the quality of the pres-
sure equipment,
— the procedures used for the permanent joining of parts as approved in
accordance with section 3.1.2 of Annex I,
— the examinations and tests to be carried out after manufacture,— the means of monitoring the effective operation of the quality system,— the quality records, such as inspection reports and test data, calibration
data, reports concerning the qualifications or approvals of the personnel
concerned, particularly those of the personnel undertaking the perma-
nent joining of parts in accordance with section 3.1.2 of Annex I.
4.3. The notified body must assess the quality system to determine whether it
satisfies the requirements referred to in 4.2. The elements of the quality
system which conform to the relevant harmonized standard are presumed
to comply with the corresponding requirements referred to in 4.2.
The auditing team must have at least one member with experience of asses-
sing the pressure equipment technology concerned. The assessment
procedure must include an inspection visit to the manufacturer's premises.1997L0023 — EN — 29.07.1997 — 000.001 — 49
▼B
The decision must be notified to the manufacturer. The notification must
contain the conclusions of the examination and the reasoned assessment
decision. Provision must be made for an appeals procedure.
4.4. The manufacturer must undertake to discharge the obligations arising from
the quality system as approved and to ensure that it remains satisfactory
and efficient.
The manufacturer, or his authorized representative established within the
Community, must inform the notified body which has approved the quality
system of any intended adjustment to the quality system.
The notified body must assess the proposed changes and decide whether
the modified quality system will still satisfy the requirements referred to
in 4.2 or whether a reassessment is required.
It must notify its decision to the manufacturer. The notification must
contain the conclusions of the examination and the reasoned assessment
decision.
5.Surveillance undertheresponsibilityofthenotifiedbody
5.1. The purpose of surveillance is to make sure that the manufacturer duly
fulfils the obligations arising out of the approved quality system.
5.2. The manufacturer must allow the notified body access for inspection
purposes to the locations of inspection, testing and storage and provide it
with all necessary information, in particular:
— the quality system documentation,
— the technical documentation,
— the quality records, such as inspection reports and test data, calibration
data, reports concerning the qualifications of the personnel concerned,
etc.
5.3. The notified body must carry out periodic audits to make sure that the
manufacturer maintains and applies the quality system and provide the
manufacturer with an audit report. The frequency of periodic audits must
be such that a full reassessment is carried out every three years.
5.4. In addition the notified body may pay unexpected visits to the manufac-
turer. The need for such additional visits, and the frequency thereof, will
be determined on the basis of a visit control system operated by the noti-
fied body. In particular, the following factors must be considered in the
visit control system:
— the category of the equipment,
— the results of previous surveillance visits,— the need to follow upcorrective action,
— special conditions linked to the approval of the system, where applic-
able,
— significant changes in manufacturing organization, policy or techniques.
During such visits the notified body may, if necessary, carry out or have
carried out tests to verify that the quality system is functioning correctly.
The notified body must provide the manufacturer with a visit report and,
if a test has taken place, with a test report.
6. The manufacturer must, for a period of ten years after the last of the pres-
sure equipment has been manufactured, keep at the disposal of the national
authorities:
— the technical documentation referred to in section 2,
— the documentation referred to in the second indent of 4.1,— the adjustments referred to in the second paragraph of 4.4,
— the decisions and reports from the notified body which are referred to in
the last paragraph of 4.3, the last paragraph of 4.4 and in 5.3 and 5.4.
7. Each notified body must communicate to the Member States the relevant
information concerning the quality system approvals which it has with-
drawn and, on request, those is has issued.
Each notified body must also communicate to the other notified bodies the
relevant information concerning the quality system approvals it has with-
drawn or refused.
ModuleF(productverification)
1. This module describes the procedure whereby a manufacturer, or his
authorized representative established within the Community, ensures and1997L0023 — EN — 29.07.1997 — 000.001 — 50
▼B
declares that the pressure equipment subject to the provisions of section 3
is in conformity with the type described:
— in the EC type-examination certificate, or
— in the EC design-examination certificate
and satisfies the requirements of the Directive which apply to it.
2. The manufacturer must take all measures necessary to ensure that the
manufacturing process requires the pressure equipment to comply with the
type described
— in the EC type-examination certificate, or
— in the EC design-examination certificate
and with the requirements of the Directive which apply to it.
The manufacturer, or his authorized representative established within the
Community, must affix the CE marking to all pressure equipment and
draw upa declaration of conformity.
3. The notified body must perform the appropriate examinations and tests in
order to check the conformity of the pressure equipment with the relevant
requirements of the Directive by examining and testing every product in
accordance with section 4.
The manufacturer, or his authorized representative established within the
Community, must keep a copy of the declaration of conformity for a period
of ten years after the last of the pressure equipment has been manufactured.
4.Verificationbyexaminationandtestingofeachitemofpressureequipment
4.1. Each item of pressure equipment must be individually examined and must
undergo appropriate examinations and tests as set out in the relevant stan-
dard(s) referred to in Article 5 or equivalent examinations and tests in order
to verify that it conforms to the type and the requirements of the Directive
which apply to it.
In particular, the notified body must:
— verify that the personnel undertaking the permanent joining of parts and
the non-destructive tests are qualified or approved in accordance with
sections 3.1.2 and 3.1.3 of Annex I,
— verify the certificate issued by the materials manufacturer in accordance
with section 4.3 of Annex I,
— carry out or have carried out the final inspection and proof test referred
to in section 3.2 of Annex I and examine the safety devices, if applic-
able.
4.2. The notified body must affix its identification number or have it affixed to
each item of pressure equipment and draw up a written certificate of
conformity relating to the tests carried out.
4.3. The manufacturer, or his authorized representative established within the
Community, must ensure that the certificates of conformity issued by the
notified body can be made available on request.
ModuleG(ECunitverification)
1. This module describes the procedure whereby the manufacturer ensures and
declares that pressure equipment which has been issued with the certificate
referred to in section 4.1 satisfies the requirements of the Directive which
apply to it. The manufacturer must affix the CE marking to the pressure
equipment and draw up a declaration of conformity.
2. The manufacturer must apply to a notified body of his choice for unit veri-
fication.
The application must contain:
— the name and address of the manufacturer and the location of the pres-
sure equipment,
— a written declaration to the effect that a similar application has not been
lodged with another notified body,
— technical documentation.
3. The technical documentation must enable the conformity of the pressure
equipment with the requirements of the Directive which apply to it to be
assessed and the design, manufacture and operation of the pressure equip-
ment to be understood.
The technical documentation must contain:
— a general description of the pressure equipment,1997L0023 — EN — 29.07.1997 — 000.001 — 51
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— conceptual design and manufacturing drawings and diagrams of compo-
nents, sub-assemblies, circuits, etc.,
— descriptions and explanations necessary for an understanding of the said
drawings and diagrams and the operation of the pressure equipment,
— a list of the standards referred to in Article 5, applied in full or in part,
and descriptions of the solutions adopted to meet the essential require-
ments of the Directive where the standards referred to in Article 5 have
not been applied,
— results of design calculations made, examinations carried out, etc.,— test reports,
— appropriate details relating to the approval of the manufacturing and
test procedures and of the qualifications or approvals of the personnel
concerned in accordance with sections 3.1.2 and 3.1.3 of Annex I.
4. The notified body must examine the design and construction of each item
of pressure equipment and during manufacture perform appropriate tests as
set out in the relevant standard(s) referred to in Article 5 of the Directive,
or equivalent examinations and tests, to ensure its conformity with the
requirements of the Directive which apply to it.
In particular the notified body must:
— examine the technical documentation with respect to the design and the
manufacturing procedures,
— assess the materials used where these are not in conformity with the
relevant harmonized standards or with a European approval for pressure
equipment materials, and check the certificate issued by the material
manufacturer in accordance with section 4.3 of Annex I,
— approve the procedures for the permanent joining of parts or check that
they have been previously approved in accordance with section 3.1.2 of
Annex I,
— verify the qualifications or approvals required under sections 3.1.2 and
3.1.3 of Annex I,
— carry out the final inspection referred to in section 3.2.1 of Annex I,
perform or have performed the proof test referred to in section 3.2.2
of Annex I, and examine the safety devices, if applicable.
4.1. The notified body must affix its identification number or have it affixed to
the pressure equipment and draw up a certificate of conformity for the tests
carried out. This certificate must be kept for a period of ten years.
4.2. The manufacturer, or his authorized representative established within the
Community, must ensure that the declaration of conformity and certificate
of conformity issued by the notified body can be made available on
request.
ModuleH(fullqualityassurance)
1. This module describes the procedure whereby the manufacturer who satis-
fies the obligations of section 2 ensures and declares that the pressure
equipment in question satisfies the requirements of the Directive which
apply to it. The manufacturer, or his authorized representative established
within the Community, must affix the CE marking to each item of pressure
equipment and draw up a written declaration of conformity. The CE
marking must be accompanied by the identification number of the notified
body responsible for surveillance as specified in section 4.
2. The manufacturer must implement an approved quality system for design,
manufacture, final inspection and testing as specified in section 3 and be
subject to surveillance as specified in section 4.
3.Qualitysystem
3.1. The manufacturer must lodge an application for assessment of his quality
system with a notified body of his choice.
The application must include:
— all relevant information concerning the pressure equipment in question,
— the documentation concerning the quality system.
3.2. The quality system must ensure compliance of the pressure equipment with
the requirements of the Directive which apply to it.
All the elements, requirements and provisions adopted by the manufacturer
must be documented in a systematic and orderly manner in the form of
written policies, procedures and instructions. This quality system documen-
tation must permit a consistent interpretation of the procedural and quality
measures such as programmes, plans, manuals and records.1997L0023 — EN — 29.07.1997 — 000.001 — 52
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It must contain in particular an adequate description of:
— the quality objectives and the organizational structure, responsibilities
and powers of the management with regard to the quality of the design
and to product quality,
— the technical design specifications, including standards, that will be
applied and, where the standards referred to in Article 5 are not applied
in full, the means that will be used to ensure that the essential require-
ments of the Directive which apply to the pressure equipment will be
met,
— the design control and design verification techniques, processes and
systematic measures that will be used when designing the pressure
equipment, particularly with regard to materials in accordance with
section 4 of Annex I,
— the corresponding manufacturing, quality control and quality assurance
techniques, processes and systematic measures that will be used, parti-
cularly the procedures for the permanent joining of parts as approved in
accordance with section 3.1.2 of Annex I,
— the examinations and tests to be carried out before, during, and after
manufacture, and the frequency with which they will be carried out,
— the quality records, such as inspection reports and test data, calibration
data, reports concerning the qualifications or approvals of the personnel
concerned, particularly those of the personnel undertaking the perma-
nent joining of parts and the non-destructive tests in accordance with
sections 3.1.2 and 3.1.3 of Annex I,
— the means of monitoring the achievement of the required pressure
equipment design and quality and the effective operation of the quality
system.
3.3. The notified body must assess the quality system to determine whether it
satisfies the requirements referred to in 3.2. The elements of the quality
system which conform to the relevant harmonized standard are presumed
to comply with the corresponding requirements referred to in 3.2.
The auditing team must have at least one member with experience of asses-
sing the pressure equipment technology concerned. The assessment
procedure must include an inspection visit to the manufacturer's premises.
The decision must be notified to the manufacturer. The notification must
contain the conclusions of the examination and the reasoned assessment
decision. Provision must be made for an appeals procedure.
3.4. The manufacturer must undertake to fulfil the obligations arising out of the
quality system as approved and to ensure that it remains satisfactory and
efficient.
The manufacturer, or his authorized representative established within the
Community, must inform the notified body that has approved the quality
system of any intended adjustment to the quality system.
The notified body must assess the proposed changes and decide whether
the modified quality system will still satisfy the requirements referred to
in 3.2 or whether a reassessment is required.
It must notify its decision to the manufacturer. The notification must
contain the conclusions of the examination and the reasoned assessment
decision.
4.Surveillance undertheresponsibilityofthenotifiedbody
4.1. The purpose of this surveillance is to make sure that the manufacturer duly
fulfils the obligations arising out of the approved quality system.
4.2. The manufacturer must allow the notified body access for inspection
purposes to the locations of design, manufacture, inspection, testing and
storage and provide it with all necessary information, in particular:
— the quality system documentation,
— the quality records provided for in the design part of the quality system,
such as results of analyses, calculations, tests, etc.,
— the quality records provided for in the manufacturing part of the quality
system, such as inspection reports and test data, calibration data, reports
concerning the qualifications of the personnel concerned, etc.
4.3. The notified body must carry out periodic audits to make sure that the
manufacturer maintains and applies the quality system and provide the
manufacturer with an audit report. The frequency of periodic audits must
be such that a full reassessment is carried out every three years.
4.4. In addition the notified body may pay unexpected visits to the manufac-
turer. The need for such additional visits, and the frequency thereof, will1997L0023 — EN — 29.07.1997 — 000.001 — 53
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be determined on the basis of a visit control system operated by the noti-
fied body. In particular, the following factors must be considered in the
visit control system:
— the category of the equipment,
— the results of previous surveillance visits,— the need to follow upcorrective action,— special conditions linked to the approval of the system, where applic-
able,
— significant changes in manufacturing organization, policy or techniques.
During such visits the notified body may, if necessary, carry out or have
carried out tests to verify that the quality system is functioning correctly.
The notified body must provide the manufacturer with a visit report and,
if a test has taken place, with a test report.
5. The manufacturer must, for a period of ten years after the last of the pres-
sure equipment has been manufactured, keep at the disposal of the national
authorities:
— the documentation referred to in the second indent of the second
subparagraph of 3.1;
— the adjustments referred to in the second subparagraph of 3.4;
— the decisions and reports from the notified body which are referred to in
the last subparagraph of 3.3, the last subparagraph of 3.4, and in 4.3
and 4.4.
6. Each notified body must communicate to the Member States the relevant
information concerning the quality system approvals which it has with-
drawn, and, on request, those it has issued.
Each notified body must also communicate to the other notified bodies the
relevant information concerning the quality system approvals it has with-
drawn or refused.
Module H1 (full quality assurance with design examination and special
surveillance ofthefinalassessment)
1. In addition to the requirements of module H, the following apply:
(a) the manufacturer must lodge an application for examination of the
design with the notified body;
(b) the application must enable the design, manufacture and operation of
the pressure equipment to be understood, and enable conformity with
the relevant requirements of the Directive to be assessed.
It must include:
— the technical design specifications, including standards, which have
been applied,
— the necessary supporting evidence for their adequacy, in particular
where the standards referred to in Article 5 have not been applied
in full. This supporting evidence must include the results of tests
carried out by the appropriate laboratory of the manufacturer or on
his behalf;
(c) the notified body must examine the application and where the design
meets the provisions of the Directive which apply to it issue an EC
design-examination certificate to the applicant. The certificate must
contain the conclusions of the examination, the conditions for its
validity, the necessary data for identification of the approved design
and, if relevant, a description of the functioning of the pressure equip-
ment or accessories;
(d) the applicant must inform the notified body that has issued the EC
design-examination certificate of all modifications to the approved
design. Modifications to the approved design must receive additional
approval from the notified body that issued the EC design-examination
certificate where they may affect conformity with the essential require-
ments of the Directive or the prescribed conditions for use of the
pressure equipment. This additional approval must be given in the
form of an addition to the original EC design-examination certificate;
(e) each notified body must also communicate to the other notified bodies
the relevant information concerning the EC design-examination certifi-
cates it has withdrawn or refused.
2. Final assessment as referred to in section 3.2 of Annex I is subject to
increased surveillance in the form of unexpected visits by the notified
body. In the course of such visits, the notified body must conduct examina-
tions on the pressure equipment.1997L0023 — EN — 29.07.1997 — 000.001 — 54
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ANNEX IV
MINIMUMCRITERIATOBEMETWHENDESIGNATINGTHENOTI-
FIED BODIES REFERRED TO IN ARTICLE 12 AND THE
RECOGNIZED THIRD-PARTY ORGANIZATIONS REFERRED TO IN
ARTICLE13
1. The body, its director and the personnel responsible for carrying out the
assessment and verification operations may not be the designer, manufac-
turer, supplier, installer or user of the pressure equipment or assemblieswhich that body inspects, nor the authorized representative of any of those
parties. They may not become directly involved in the design, construction,
marketing or maintenance of the pressure equipment or assemblies, nor
represent the parties engaged in these activities. This does not preclude the
possibility of exchanges of technical information between the manufacturer
of pressure equipment or assemblies and the notified body.
2. The body and its personnel must carry out the assessments and verifications
with the highest degree of professional integrity and technical competence
and must be free from all pressures and inducements, particularly financial,
which might influence their judgment or the results of the inspection, espe-
cially from persons or groups of persons with an interest in the results of
verifications.
3. The body must have at its disposal the necessary personnel and possess the
necessary facilities to enable it to perform properly the technical and admin-
istrative tasks connected with the inspection and surveillance operations, it
must also have access to the equipment required to perform special verifica-
tions.
4. The personnel responsible for inspection must have:
— sound technical and vocational training,
— satisfactory knowledge of the requirements of the inspections they carry
out and adequate experience of such operations,
— the ability required to draw upthe certificates, records and rep orts to
demonstrate that the inspections have been carried out.
5. The impartiality of the inspection personnel must be guaranteed. Their remu-
neration must not depend on the number of inspections carried out, nor on
the results of such inspections.
6. The body must take out liability insurance unless its liability is assumed by
the State in accordance with national law, or the Member State itself is
directly responsible for the inspections.
7. The personnel of the body must observe professional secrecy with regard to
all information gained in carrying out their tasks (except vis-à-vis the compe-
tent administrative authorities of the State in which their activities are carried
out) under the Directive or any provision of national law giving effect to it.1997L0023 — EN — 29.07.1997 — 000.001 — 55
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ANNEX V
CRITERIA TO BE MET WHEN AUTHORIZING USER INSPECTO-
RATESREFERREDTOINARTICLE14
1. The user inspectorate must be organizationally identifiable and have
reporting methods within the group of which it is part which ensure and
demonstrate its impartiality. It must not be responsible for the design, manu-
facture, supply, installation, operation or maintenance of the pressure
equipment or assemblies, and must not engage in any activities that mightconflict with its independence of judgment and integrity in relation to its
inspection activities.
2. The user inspectorate and its personnel must carry out the assessments and
verifications with the highest degree of professional integrity and technical
competence and must be free from all pressures and inducements, particu-
larly financial, which might influence their judgment or the results of the
inspection, especially from persons or groups of persons with an interest in
the results of verifications.
3. The user inspectorate must have at its disposal the necessary personnel and
possess the necessary facilities to enable it to perform properly the technical
and administrative tasks connected with the inspection and surveillance
operations; it must also have access to the equipment required to perform
special verifications.
4. The personnel responsible for inspection must have:
— sound technical and vocational training,
— satisfactory knowledge of the requirements of the inspections they carry
out and adequate experience of such operations,
— the ability required to draw upthe certificates, records and rep orts to
demonstrate that the inspections have been carried out.
5. The impartiality of inspection personnel must be guaranteed. Their remunera-
tion must not depend on the number of inspections carried out, nor on the
results of such inspections.
6. The user inspectorate must have adequate liability insurance unless liability
is assumed by the groupof which it is p art.
7. The personnel of the user inspectorate must observe professional secrecy
with regard to all information gained in carrying out their tasks (except vis-
à-vis the competent administrative authorities of the State in which their
activities are carried out) under the Directive or any provision of national
law giving effect to it.1997L0023 — EN — 29.07.1997 — 000.001 — 56
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ANNEX VI
CEMARKING
The CE marking consists of the initials ‘CE’ taking the following form:
If the CE marking is reduced or enlarged the proportions given in the above
graduated drawing must be respected.
The various components of the CE marking must have substantially the same
vertical dimension, which may not be less than 5 mm.1997L0023 — EN — 29.07.1997 — 000.001 — 57
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ANNEX VII
DECLARATIONOFCONFORMITY
The EC declaration of conformity must contain the following particulars:
— name and address of the manufacturer or of his authorized representative
established within the Community,
— description of the pressure equipment or assembly,— conformity assessment procedure followed,— in the case of assemblies, description of the pressure equipment constituting
the assembly, and the conformity assessment procedures followed,
— where appropriate, name and address of the notified body which carried out
the inspection,
— where appropriate, a reference to the EC type-examination certificate, EC
design-examination certificate or EC certificate of conformity,
— where appropriate, name and address of the notified body monitoring the
manufacturer's quality assurance system,
— where appropriate, the references of the harmonized standards applied,
— where appropriate, other technical standards and specifications used,
— where appropriate, the references of the other Community Directives
applied,
— particulars of the signatory authorized to sign the legally binding declaration
for the manufacturer or his authorized representative established within the
Community.1997L0023 — EN — 29.07.1997 — 000.001 — 58