Annexes to COM(2008)202 - Simple pressure vessels (codified version) - Main contents
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This page contains a limited version of this dossier in the EU Monitor.
| dossier | COM(2008)202 - Simple pressure vessels (codified version). |
|---|---|
| document | COM(2008)202  |
| date | September 16, 2009 |
(5) OJ C 91, 16.4.2003, p. 7.
(6) OJ C 136, 4.6.1985, p. 1.
(7) OJ C 267, 19.10.1989, p. 3.
(8) OJ C 10, 16.1.1990, p. 1.
(9) OJ L 204, 21.7.1998, p. 37.
ANNEX I
ESSENTIAL SAFETY REQUIREMENTS
(referred to in Article 3(1))
1. MATERIALS
Materials must be selected according to the intended use of the vessels and in accordance with points 1.1 to 1.4.
1.1. Pressurised parts
The materials referred to in Article 1 used for manufacturing the pressurised parts of the vessels must be:
| (a) | capable of being welded; |
| (b) | ductile and tough, so that a rupture at minimum working temperature does not give rise to either fragmentation or brittle-type fracture; |
| (c) | not adversely affected by ageing. |
For steel vessels, the materials must in addition meet the requirements set out in point 1.1.1 and, for aluminium or aluminium alloy vessels, those set out in point 1.1.2.
They must be accompanied by an inspection slip as described in Annex II, drawn up by the producer of the materials.
1.1.1. Steel vessels
Non-alloy quality steels shall meet the following requirements:
| (a) | they must be non-effervescent and supplied after normalisation treatment, or in an equivalent state; |
| (b) | the content per product of carbon must be less than 0,25 % and that of sulphur and phosphorus must each be less than 0,05 %; |
| (c) | they must have the following mechanical properties per product:
|
1.1.2. Aluminium vessels
Non-alloy aluminium must have an aluminium content of at least 99,5 % and the alloys referred to in Article 1(3)(a) must display adequate resistance to intercrystalline corrosion at maximum working temperature.
Moreover, these materials must satisfy the following requirements:
| (a) | they must be supplied in an annealed state; and |
| (b) | they must have the following mechanical characteristics per product:
|
1.2. Welding materials
The welding materials used to manufacture the welds on or of the simple pressure vessel must be appropriate to and compatible with the materials to be welded.
1.3. Accessories contributing to the strength of the vessel
These accessories (for example bolts and nuts) must be made of a material specified in point 1.1 or of other kinds of steel, aluminium or an appropriate aluminium alloy compatible with materials used for the manufacture of pressurised parts.
The latter materials must at minimum working temperature have an appropriate elongation after rupture and toughness.
1.4. Non-pressurised parts
All unpressurised parts of welded vessels must be of materials which are compatible with that of the components to which they are welded.
2. VESSEL DESIGN
The manufacturer must, when designing the vessel, define the use to which it will be put, and select:
| (a) | the minimum working temperature Tmin; |
| (b) | the maximum working temperature Tmax; |
| (c) | the maximum working pressure PS. |
However, should a minimum working temperature exceeding – 10 °C be selected, the qualities required of the materials must be satisfied at – 10 °C.
The manufacturer must also take account of the following provisions:
| — | it must be possible to inspect the inside of vessels, |
| — | it must be possible to drain the vessels, |
| — | the mechanical qualities must be maintained throughout the period of use of the vessel for the intended purpose, |
| — | the vessels must, bearing in mind their prescribed use, be adequately protected against corrosion, |
and the fact that under the conditions of use envisaged:
| — | the vessels must not be subjected to stresses likely to impair their safety in use, |
| — | internal pressure must not permanently exceed the maximum working pressure PS. However, it may momentarily do so by up to 10 %. |
Circular and longitudinal seams must be made using full penetration welds or welds of equivalent effectiveness. Convex ends other than hemispherical ones must have a cylindrical edge.
2.1. Wall thickness
If the product of PS × V is not more than 3 000 bar.l, the manufacturer must select one of the methods described in points 2.1.1 and 2.1.2 for determining vessel wall thickness; if the product of PS × V is more than 3 000 bar.l, or if the maximum working temperature exceeds 100 °C, such thickness must be determined by the method described in point 2.1.1.
The actual wall thickness of the cylindrical section and ends shall, however, be not less than 2 mm in the case of steel vessels and not less than 3 mm in the case of aluminium or aluminium alloy vessels.
2.1.1. Calculation method
The minimum thickness of pressurised parts must be calculated having regard to the intensity of the stresses and to the following provisions:
| (a) | the calculation pressure to be taken into account must not be less than the maximum working pressure PS selected; |
| (b) | the permissible general membrane stress must not exceed the lower of the values 0,6 RET or 0,3 Rm. The manufacturer must use the RET and Rm minimum values guaranteed by the material manufacturer in order to determine the permissible stress. |
However, where the cylindrical portion of the vessel has one or more longitudinal welds made using a non-automatic welding process, the thickness calculated as referred to in the first paragraph must be multiplied by the coefficient 1,15.
2.1.2. Experimental method
Wall thickness must be so determined as to enable the vessels to resist at ambient temperature a pressure equal to at least five times the maximum working pressure, with a permanent circumferential deformation factor of no more than 1 %.
3. MANUFACTURING PROCESSES
Vessels shall be constructed and subjected to production checks in accordance with the design and manufacturing record referred to in point 3 of Annex II.
3.1. Preparation of the component parts
Preparation of the component parts (for example forming and chamfering) must not give rise to surface defects or cracks or changes in the mechanical characteristics likely to be detrimental to the safety of the vessels.
3.2. Welds on pressurised parts
The characteristics of welds and adjacent zones must be similar to those of the welded materials and must be free of any surface or internal defects detrimental to the safety of the vessels.
Welds must be performed by qualified welders or operators possessing the appropriate level of competence, in accordance with approved welding processes. Such approval and qualification tests must be carried out by approved inspection bodies.
The manufacturer must also, during manufacture, ensure consistent weld quality by conducting appropriate tests using adequate procedures. These tests must be the subject of a report.
4. PUTTING INTO SERVICE OF THE VESSELS
Vessels must be accompanied by the instructions drawn up by the manufacturer, as referred to in point 2 of Annex II.
ANNEX II
‘CE’ MARKING, INSCRIPTIONS, INSTRUCTIONS, DESIGN AND MANUFACTURE SCHEDULES, DEFINITIONS AND SYMBOLS
1. ‘CE’ MARKING AND INSCRIPTIONS
1.1. ‘CE’ marking
The ‘CE’ marking shall consist of the initials ‘CE’ in the following form:
If the ‘CE’ marking is reduced or enlarged the proportions given in the graduated drawing set out in this point 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.
1.2. Inscriptions
The vessel or data plate must bear at least the following information:
| (a) | the maximum working pressure (PS in bar); |
| (b) | the maximum working temperature (Tmax in °C); |
| (c) | the minimum working temperature (Tmin in °C); |
| (d) | the capacity of the vessel (V in l); |
| (e) | the name or mark of the manufacturer; |
| (f) | the type and serial or batch identification of the vessel; |
| (g) | the last two digits of the year in which the ‘CE’ marking was affixed. |
Where the data plate is used, it must be so designed that it cannot be reused and must include a vacant space to enable other information to be provided.
2. INSTRUCTIONS
The instructions must contain the following information:
| (a) | the particulars given in point 1 except for the vessel’s serial identification; |
| (b) | the intended use of the vessel; |
| (c) | the maintenance and installation requirements for vessel safety. |
They must be in the official language or languages of the country of destination.
3. DESIGN AND MANUFACTURING SCHEDULES
The design and manufacturing schedules must contain a description of the techniques and operations employed in order to meet the essential safety requirements set out in Annex I or the harmonised standards referred to in Article 5(1), and in particular:
| (a) | a detailed manufacturing drawing of the vessel type; |
| (b) | the instructions; |
| (c) | a document describing:
|
When the procedures laid down in Articles 11 to 14 are applied, the schedule must also include:
| (a) | the certificates relating to the suitable qualification of the welding operations and of the welders or operators; |
| (b) | the inspection slip for the materials used in the manufacture of parts and assemblies contributing to the strength of the pressure vessel; |
| (c) | a report on the examinations and tests performed or a description of the proposed checks. |
4. DEFINITIONS AND SYMBOLS
4.1. Definitions
| (a) | The design pressure ‘P’ is the gauge pressure chosen by the manufacturer and used to determine the thickness of the vessel’s pressurised parts. |
| (b) | The maximum working pressure ‘PS’ is the maximum gauge pressure which may be exerted under normal conditions of use of the vessel. |
| (c) | The minimum working temperature Tmin is the lowest stabilised temperature which the wall of the vessel may attain under normal conditions of use. |
| (d) | The maximum working temperature Tmax is the highest stabilised temperature which the wall of the vessel may attain under normal conditions of use. |
| (e) | The yield strength ‘RET’ is the value at the maximum working temperature Tmax of:
|
| (f) | Families of vessels: Vessels form part of the same family if they differ from the prototype only in diameter, provided that the permissible requirements referred to in points 2.1.1 and 2.1.2 of Annex I are complied with, and/or in the length of their cylindrical portion within the following limits:
Variations in length causing the apertures and/or penetrations to be modified must be shown in the drawing for each variant. |
| (g) | A batch of vessels consists at the most of 3 000 vessels of the model of the same type. |
| (h) | There is series manufacture within the meaning of this Directive if more than one vessel of the same type is manufactured during a given period by a continuous manufacturing process, in accordance with a common design and using the same manufacturing processes. |
| (i) | Inspection slip: document by which the producer certifies that the products delivered meet the requirements of the order and in which he sets out the results of the routine in-plant inspection test, in particular chemical composition and mechanical characteristics performed on products made by the same production process as the supply, but not necessarily on the products delivered. |
4.2. Symbols
| A | elongation after rupture | % |
| A 80 mm | elongation after rupture (Lo = 80 mm) | % |
| KCV | rupture energy | J/cm2 |
| P | design pressure | Bar |
| PS | maximum working pressure | Bar |
| Ph | hydrostatic or pneumatic test pressure | Bar |
| Rp0,2 | proof stress at 0,2 % | N/mm2 |
| RET | yield strength at maximum working temperature | N/mm2 |
| ReH | upper yield point | N/mm2 |
| Rm | tensile strength | N/mm2 |
| Rm, max | maximum tensile strength | N/mm2 |
| Rp1,0 | proof stress at 1,0 % | N/mm2 |
| Tmax | maximum working temperature | °C |
| Tmin | minimum working temperature | °C |
| V | capacity of the vessel | l |
ANNEX III
MINIMUM CRITERIA TO BE MET BY MEMBER STATES FOR THE APPROVAL OF INSPECTION BODIES
(referred to in Article 9(2))
| 1. | The approved inspection body, its director and the staff responsible for carrying out the verification tests shall not be the designer, manufacturer, supplier or installer of vessels which they inspect, nor the authorised representative of any of those parties. They shall not become directly involved in the design, construction, marketing or maintenance of the vessels, nor represent the parties engaged in those activities. This does not preclude the possibility of exchanges of technical information between the manufacturer and the approved inspection body. |
| 2. | The approved inspection body and its staff must carry out the verification tests 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, especially from persons or groups of persons with an interest in the result of verifications. |
| 3. | The approved inspection body must have at its disposal the necessary staff and the necessary facilities to enable it to perform properly the administrative and technical tasks connected with verification; it must also have access to the equipment required for special verification. |
| 4. | The staff responsible for inspection must have:
|
| 5. | The impartiality of inspection staff must be guaranteed. Their remuneration must not depend on the number of tests carried out or on the results of such tests. |
| 6. | The approved inspection 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 tests. |
| 7. | The staff of the approved inspection body is bound to observe professional secrecy with regard to all information gained in carrying out its tasks (except vis-à-vis the competent administrative authorities of the State in which its activities are carried out) under this Directive or any provision of national law giving effect to it. |
ANNEX IV
PART A
Repealed Directive with list of its successive amendments
(referred to in Article 19)
| Council Directive 87/404/EEC (OJ L 220, 8.8.1987, p. 48) | |
| Council Directive 90/488/EEC (OJ L 270, 2.10.1990, p. 25) | |
| Council Directive 93/68/EEC (OJ L 220, 30.8.1993, p. 1) | Article 1, point 1, and Article 2 only |
PART B
List of time limits for transposition into national law and application
(referred to in Article 19)
| Directive | Time limit for transposition | Date of application |
| 87/404/EEC | 31 December 1989 | 1 July 1990 (1) |
| 90/488/EEC | 1 July 1991 | — |
| 93/68/EEC | 30 June 1994 | 1 January 1995 (2) |
(1) In accordance with the third subparagraph of Article 18(2), Member States shall, for the period up to 1 July 1992, permit the placing on the market and/or in service of vessels conforming to the rules in force in their territories before 1 July 1990.
(2) In accordance with Article 14(2), until 1 January 1997 Member States shall allow the placing on the market and the bringing into service of products which comply with the marking arrangements in force before 1 January 1995.
ANNEX V
CORRELATION TABLE
| Directive 87/404/EEC | This Directive |
| Recital 5, fifth sentence | Article 1(3), point (b) |
| Article 1(1) | Article 1(1) |
| Article 1(2), first subparagraph | Article 1(3), point (a), first subparagraph |
| Article 1(2), second subparagraph, first indent | Article 1(3), point (a), second subparagraph |
| Article 1(2), second subparagraph, second indent, first and second sub-indents | Article 1(3), point (a), third subparagraph, points (i) and (ii) |
| Article 1(2), second subparagraph, third indent | Article 1(3), point (a), fourth subparagraph |
| Article 1(2), second subparagraph, fourth indent | Article 1(3), point (a), fifth subparagraph |
| Article 1(3), first, second and third indents | Article 1(2), points (a), (b) and (c) |
| Articles 2, 3 and 4 | Articles 2, 3 and 4 |
| Article 5(1) | Article 5(1) |
| Article 5(2) | Article 5(2) |
| Article 5(3), points (a) and (b) | Article 5(3), first and second subparagraphs |
| Article 6 | Article 6 |
| Article 7(1) | Article 7(1) |
| Article 7(2), first and second sentences | Article 7(2), first subparagraph |
| Article 7(2), third sentence | Article 7(2), second subparagraph |
| Article 7(3) | Article 7(3) |
| Article 7(4) | Article 7(4) |
| Article 8(1), introductory wording and point (a), introductory wording | Article 8(1), introductory wording |
| Article 8(1), point (a), first and second indents | Article 8(1), points (a) and (b) |
| Article 8(1), point (b) | Article 8(2) |
| Article 8(2), point (a) | Article 8(3), point (a) |
| Article 8(2), point (b), first and second indents | Article 8(3), points (b)(i) and (ii) |
| Article 8(3) | Article 8(4) |
| Article 9 | Article 9 |
| Article 10(1) | Article 10(1) |
| Article 10(2), first subparagraph | Article 10(2), first subparagraph |
| Article 10(2), second subparagraph, first and second indents | Article 10(2), second subparagraph, points (a) and (b) |
| Article 10(2), third subparagraph | Article 10(2), third subparagraph |
| Article 10(3), first subparagraph | Article 10(3), first subparagraph |
| Article 10(3), second subparagraph | Article 10(3), second subparagraph |
| Article 10(3), third subparagraph, points (a) and (b) | Article 10(3), third subparagraph, points (a) and (b) |
| Article 10(4) | Article 10(4) |
| Article 10(5), first sentence | Article 10(5), first subparagraph |
| Article 10(5), second and third sentences | Article 10(5), second subparagraph |
| Article 11(1) and (2) | Article 11(1) and (2) |
| Article 11(3), introductory wording | Article 11(3), first subparagraph |
| Article 11(3), point 3.1 | Article 11(3), second subparagraph |
| Article 11(3), point 3.2 | Article 11(3), third subparagraph |
| Article 11(3), point 3.3, first subparagraph | Article 11(3), fourth subparagraph |
| Article 11(3), point 3.3, second subparagraph | Article 11(3), fifth subparagraph |
| Article 11(3), point 3.3, third subparagraph | Article 11(3), sixth subparagraph |
| Article 11(3), point 3.4, first subparagraph | Article 11(3), seventh subparagraph |
| Article 11(3), point 3.4, second subparagraph | Article 11(3), eighth subparagraph |
| Article 11(3), point 3.4, third subparagraph | Article 11(3), ninth subparagraph |
| Article 11(3), point 3.5 | Article 11(3), tenth subparagraph |
| Article 12(1), first subparagraph, first and second indents | Article 12(1), points (a) and (b) |
| Article 12(1), second subparagraph | Article 12(2), first subparagraph |
| Article 12(2) | Article 12(2), second subparagraph |
| Article 13(1), first subparagraph | Article 13(1) |
| Article 13(1), second subparagraph | Article 13(2) |
| Article 13(2), indents 1 to 4 | Article 13(3), points (a) to (d) |
| Article 14(1) | Article 14, first paragraph |
| Article 14(2), first subparagraph, first and second indents | Article 14, second paragraph, points (a) and (b) |
| Article 14(2), second subparagraph | Article 14, third paragraph |
| Articles 15, 16 and 17 | Articles 15, 16 and 17 |
| Article 18(1) | — |
| Article 18(2) | Article 18 |
| — | Article 19 |
| — | Article 20 |
| Article 19 | Article 21 |
| Annex I, point 1 | Annex I, point 1. |
| Annex I, point 1.1, first paragraph, first, second and third indents | Annex I, point 1.1., first paragraph, points (a), (b) and (c) |
| Annex I, point 1.1, second and third paragraphs | Annex I, point 1.1., second and third paragraphs |
| Annex I, points 1.1.1 and 1.1.2 | Annex I, points 1.1.1 and 1.1.2 |
| Annex I, points 1.2, 1.3 and 1.4 | Annex I, points 1.2, 1.3 and 1.4 |
| Annex I, point 2, first paragraph, first, second and third indents | Annex I, point 2, first paragraph, points (a), (b) and (c) |
| Annex I, point 2, second, third and fourth paragraphs | Annex I, point 2, second, third and fourth paragraphs |
| Annex I, points 2.1, 3 and 4 | Annex I, points 2.1, 3 and 4 |
| Annex II, point 1 | Annex II, point 1 |
| Annex II, point 1.a, first, second and third indents | Annex II, point 1.1, first, second and third paragraphs |
| Annex II, point 1.b, first paragraph, indents 1 to 7 | Annex II, point 1.2, first paragraph, points (a) to (g) |
| Annex II, point 1.b, second paragraph | Annex II, point 1.2, second paragraph |
| Annex II, point 2, first paragraph, first, second and third indents | Annex II, point 2, first paragraph, points (a), (b) and (c) |
| Annex II, point 2, second paragraph | Annex II, point 2, second paragraph |
| Annex II, point 3, first paragraph | Annex II, point 3, first paragraph |
| Annex II, point 3, second paragraph, points (i), (ii) and (iii) | Annex II, point 3, second paragraph, points (a), (b) and (c) |
| Annex II, point 4 | Annex II, point 4 |
| Annex III, points 1, 2 and 3 | Annex III, points 1, 2 and 3 |
| Annex III, point 4, first, second and third indents | Annex III, point 4, points (a), (b) and (c) |
| Annex III, points 5, 6 and 7 | Annex III, points 5, 6 and 7 |
| — | Annex IV |
| — | Annex V |