Publication: Magyar Közlöny
Issue: MK-2011-73 (Year: 2011, Number: 73)
Era: contemporary
Section: 1. melléklet a 2011. évi LXXIX. törvényhez
Paragraph Index: 458

10. The test report shall be signed with the name and status of the signatory. 6.1.5.8.2 The test report shall contain statements that the packaging prepared as for carriage was tested in accordance with the appropriate requirements of this section and that the use of other packaging methods or components may render it invalid. A copy of the test report shall be available to the competent authority. Copyright © United Nations, 2010. All rights reserved - 325 - 6.1.6 Standard liquids for verifying the chemical compatibility testing of polyethylene packagings, including IBCs, in accordance with 6.1.5.2.6 and 6.5.6.3.5, respectively 6.1.6.1 The following standard liquids shall be used for this plastics material. (a) Wetting Solution for substances causing severe cracking in polyethylene under stress, in particular for all solutions and preparations containing wetting agents. An aqueous solution of 1% of alkyl benzene sulphonate, or an aqueous solution of 5% nonylphenol ethoxylate which has been preliminary stored for at least 14 days at a temperature of 40 °C before being used for the first time for the tests, shall be used. The surface tension of this solution shall be 31 to 35 mN/m at 23 °C. The stacking test shall be carried out on the basis of a relative density of not less than 1.20. A compatibility test with acetic acid is not required if adequate chemical compatibility is proved with a wetting solution. For filling substances causing cracking in polyethylene under stress which is resistant to the wetting solution, adequate chemical compatibility may be proved after preliminary storing for three weeks at 40 °C in accordance with 6.1.5.2.6, but with the original filling matter; (b) Acetic acid for substances and preparations causing cracking in polyethylene under stress, in particular for monocarboxylic acids and monovalent alcohols. Acetic acid in 98 to 100% concentration shall be used. Relative density = 1.05. The stacking test shall be carried out on the basis of a relative density not less than 1.1. In the case of filling substances causing polyethylene to swell more than acetic acid and to such an extent that the polyethylene mass is increased by up to 4%, adequate chemical compatibility may be proved after preliminary storing for three weeks at 40 °C, in accordance with 6.1.5.2.6 but with the original filling matter; (c) Normal butyl acetate/normal butyl acetate-saturated wetting solution for substances and preparations causing polyethylene to swell to such an extent that the polyethylene mass is increased by about 4% and at the same time causing cracking under stress, in particular for phyto-sanitary products, liquid paints and esters. Normal butyl acetate in 98 to 100% concentration shall be used for preliminary storage in accordance with 6.1.5.2.6. For the stacking test in accordance with 6.1.5.6, a test liquid consisting of a 1 to 10% aqueous wetting solution mixed with 2% normal butyl acetate conforming to (a) above shall be used. The stacking test shall be carried out on the basis of a relative density not less than 1.0. In the case of filling substances causing polyethylene to swell more than normal butyl acetate and to such an extent that the polyethylene mass is increased by up to 7.5%, adequate chemical compatibility may be proved after preliminary storing for three weeks at 40 °C, in accordance with 6.1.5.2.6 but with the original filling matter; Copyright © United Nations, 2010. All rights reserved - 326 - (d) Mixture of hydrocarbons (white spirit) for substances and preparations causing polyethylene to swell, in particular for hydrocarbons, esters and ketones. A mixture of hydrocarbons having a boiling range 160 °C to 220 °C, relative density 0.78-0.80, flash-point > 50 °C and an aromatic content 16% to 21% shall be used. The stacking test shall be carried out on the basis of a relative density not less than 1.0. In the case of filling substances causing polyethylene to swell to such an extent that the polyethylene mass is increased by more than 7.5%, adequate chemical compatibility may be proved after preliminary storing for three weeks at 40 °C, in accordance with 6.1.5.2.6 but with the original filling matter; (e) Nitric acid for all substances and preparations having an oxidizing effect on polyethylene and causing molecular degradation identical to or less than 55% nitric acid. Nitric acid in a concentration of not less than 55% shall be used. The stacking test shall be carried out on the basis of a relative density of not less than 1.4. In the case of filling substances more strongly oxidizing than 55% nitric acid or causing degradation of the molecular mass proceed in accordance with 6.1.5.2.5. The period of use shall be determined in such cases by observing the degree of damage (e.g. two years for nitric acid in not less than 55% concentration); (f) Water for substances which do not attack polyethylene in any of the cases referred to under (a) to (e), in particular for inorganic acids and lyes, aqueous saline solutions, polyvalent alcohols and organic substances in aqueous solution. The stacking test shall be carried out on the basis of a relative density of not less than 1.2. A design type test with water is not required if adequate chemical compatibility is proved with wetting solution or nitric acid. Copyright © United Nations, 2010. All rights reserved - 327 - CHAPTER 6.2 REQUIREMENTS FOR THE CONSTRUCTION AND TESTING OF PRESSURE RECEPTACLES, AEROSOL DISPENSERS, SMALL RECEPTACLES CONTAINING GAS (GAS CARTRIDGES) AND FUEL CELL CARTRIDGES CONTAINING LIQUEFIED FLAMMABLE GAS NOTE: Aerosol dispensers, small receptacles containing gas (gas cartridges) and fuel cell cartridges containing liquefied flammable gas are not subject to the requirements of 6.2.1 to 6.2.5. 6.2.1 General requirements 6.2.1.1 Design and construction 6.2.1.1.1 Pressure receptacles and their closures shall be designed, manufactured, tested and equipped in such a way as to withstand all conditions, including fatigue, to which they will be subjected during normal conditions of carriage and use. 6.2.1.1.2 (Reserved) 6.2.1.1.3 In no case shall the minimum wall thickness be less than that specified in the design and construction technical standards. 6.2.1.1.4 For welded pressure receptacles, only metals of weldable quality shall be used. 6.2.1.1.5 The test pressure of cylinders, tubes, pressure drums and bundles of cylinders shall be in accordance with packing instruction P200 of 4.1.4.1. The test pressure for closed cryogenic receptacles shall be in accordance with packing instruction P203 of 4.1.4.1. The test pressure of a metal hydride storage system shall be in accordance with packing instruction P205 of 4.1.4.1. 6.2.1.1.6 Pressure receptacles assembled in bundles shall be structurally supported and held together as a unit. Pressure receptacles shall be secured in a manner that prevents movement in relation to the structural assembly and movement that would result in the concentration of harmful local stresses. Manifold assemblies (e.g. manifold, valves, and pressure gauges) shall be designed and constructed such that they are protected from impact damage and forces normally encountered in carriage. Manifolds shall have at least the same test pressure as the cylinders. For toxic liquefied gases, each pressure receptacle shall have an isolation valve to ensure that each pressure receptacle can be filled separately and that no interchange of pressure receptacle contents can occur during carriage. NOTE: Toxic liquefied gases have the classification codes 2T, 2TF, 2TC, 2TO, 2TFC or 2TOC. 6.2.1.1.7 Contact between dissimilar metals which could result in damage by galvanic action shall be avoided. 6.2.1.1.8 Additional requirements for the construction of closed cryogenic receptacles for refrigerated liquefied gases 6.2.1.1.8.1 The mechanical properties of the metal used shall be established for each pressure receptacle, including the impact strength and the bending coefficient. Copyright © United Nations, 2010. All rights reserved - 328 - NOTE: With regard to the impact strength, sub-section 6.8.5.3 gives details of test requirements which may be used. 6.2.1.1.8.2 The pressure receptacles shall be thermally insulated. The thermal insulation shall be protected against impact by means of a jacket. If the space between the pressure receptacle and the jacket is evacuated of air (vacuum-insulation), the jacket shall be designed to withstand without permanent deformation an external pressure of at least 100 kPa (1 bar) calculated in accordance with a recognised technical code or a calculated critical collapsing pressure of not less than 200 kPa (2 bar) gauge pressure. If the jacket is so closed as to be gas-tight (e.g. in the case of vacuum-insulation), a device shall be provided to prevent any dangerous pressure from developing in the insulating layer in the event of inadequate gastightness of the pressure receptacle or its fittings. The device shall prevent moisture from penetrating into the insulation. 6.2.1.1.8.3 Closed cryogenic receptacles intended for the carriage of refrigerated liquefied gases having a boiling point below –182 °C at atmospheric pressure shall not include materials which may react with oxygen or oxygen enriched atmospheres in a dangerous manner, when located in parts of the thermal insulation where there is a risk of contact with oxygen or with oxygen enriched liquid. 6.2.1.1.8.4 Closed cryogenic receptacles shall be designed and constructed with suitable lifting and securing arrangements. 6.2.1.1.9 Additional requirements for the construction of pressure receptacles for acetylene Pressure receptacles for UN 1001 acetylene, dissolved, and UN 3374 acetylene, solvent free, shall be filled with a porous material, uniformly distributed, of a type that conforms to the requirements and testing specified by the competent authority and which: (a) Is compatible with the pressure receptacle and does not form harmful or dangerous compounds either with the acetylene or with the solvent in the case of UN 1001; and (b) Is capable of preventing the spread of decomposition of the acetylene in the porous material. In the case of UN 1001, the solvent shall be compatible with the pressure receptacle. 6.2.1.2 Materials 6.2.1.2.1 Construction materials of pressure receptacles and their closures which are in direct contact with dangerous goods shall not be affected or weakened by the dangerous goods intended to be carried and shall not cause a dangerous effect e.g. catalysing a reaction or reacting with the dangerous goods. 6.2.1.2.2 Pressure receptacles and their closures shall be made of the materials specified in the design and construction technical standards and the applicable packing instruction for the substances intended for carriage in the pressure receptacle. The materials shall be resistant to brittle fracture and to stress corrosion cracking as indicated in the design and construction technical standards. 6.2.1.3 Service equipment 6.2.1.3.1 Valves, piping and other fittings subjected to pressure, excluding pressure relief devices, shall be designed and constructed so that the burst pressure is at least 1.5 times the test pressure of the pressure receptacle. Copyright © United Nations, 2010. All rights reserved - 329 - 6.2.1.3.2 Service equipment shall be configured or designed to prevent damage that could result in the release of the pressure receptacle contents during normal conditions of handling and carriage. Manifold piping leading to shut-off valves shall be sufficiently flexible to protect the valves and the piping from shearing or releasing the pressure receptacle contents. The filling and discharge valves and any protective caps shall be capable of being secured against unintended opening. Valves shall be protected as specified in 4.1.6.8. 6.2.1.3.3 Pressure receptacles which are not capable of being handled manually or rolled, shall be fitted with devices (skids, rings, straps) ensuring that they can be safely handled by mechanical means and so arranged as not to impair the strength of, nor cause undue stresses in, the pressure receptacle. 6.2.1.3.4 Individual pressure receptacles shall be equipped with pressure relief devices as specified in packing provision P200 (2) or P205 of 4.1.4.1 or in 6.2.1.3.6.4 and 6.2.1.3.6.5. Pressurerelief devices shall be designed to prevent the entry of foreign matter, the leakage of gas and the development of any dangerous excess pressure. When fitted, pressure relief devices on manifolded horizontal pressure receptacles filled with flammable gas shall be arranged to discharge freely to the open air in such a manner as to prevent any impingement of escaping gas upon the pressure receptacle itself under normal conditions of carriage. 6.2.1.3.5 Pressure receptacles whose filling is measured by volume shall be provided with a level indicator. 6.2.1.3.6 Additional requirements for closed cryogenic receptacles 6.2.1.3.6.1 Each filling and discharge opening in a closed cryogenic receptacle used for the carriage of flammable refrigerated liquefied gases shall be fitted with at least two mutually independent shut-off devices in series, the first being a stop-valve, the second being a cap or equivalent device. 6.2.1.3.6.2 For sections of piping which can be closed at both ends and where liquid product can be trapped, a method of automatic pressure-relief shall be provided to prevent excess pressure build-up within the piping. 6.2.1.3.6.3 Each connection on a closed cryogenic receptacle shall be clearly marked to indicate its function (e.g. vapour or liquid phase). 6.2.1.3.6.4 Pressure-relief devices 6.2.1.3.6.4.1 Every closed cryogenic receptacle shall be provided with at least one pressure-relief device. The pressure-relief device shall be of the type that will resist dynamic forces including surge. 6.2.1.3.6.4.2 Closed cryogenic receptacles may, in addition, have a frangible disc in parallel with the spring loaded device(s) in order to meet the requirements of 6.2.1.3.6.5. 6.2.1.3.6.4.3 Connections to pressure-relief devices shall be of sufficient size to enable the required discharge to pass unrestricted to the pressure-relief device. 6.2.1.3.6.4.4 All pressure-relief device inlets shall under maximum filling conditions be situated in the vapour space of the closed cryogenic receptacle and the devices shall be so arranged as to ensure that the escaping vapour is discharged unrestrictedly. 6.2.1.3.6.5 Capacity and setting of pressure-relief devices NOTE: In relation to pressure-relief devices of closed cryogenic receptacles, maximum allowable working pressure (MAWP) means the maximum effective gauge pressure Copyright © United Nations, 2010. All rights reserved - 330 - permissible at the top of a loaded closed cryogenic receptacle in its operating position including the highest effective pressure during filling and discharge. 6.2.1.3.6.5.1 The pressure-relief device shall open automatically at a pressure not less than the MAWP and be fully open at a pressure equal to 110% of the MAWP. It shall, after discharge, close at a pressure not lower than 10% below the pressure at which discharge starts and shall remain closed at all lower pressures. 6.2.1.3.6.5.2 Frangible discs shall be set to rupture at a nominal pressure which is the lower of either the test pressure or 150% of the MAWP. 6.2.1.3.6.5.3 In the case of the loss of vacuum in a vacuum-insulated closed cryogenic receptacle the combined capacity of all pressure-relief devices installed shall be sufficient so that the pressure (including accumulation) inside the closed cryogenic receptacle does not exceed 120% of the MAWP. 6.2.1.3.6.5.4 The required capacity of the pressure-relief devices shall be calculated in accordance with an established technical code recognized by the competent authority 1. 6.2.1.4 Approval of pressure receptacles 6.2.1.4.1 The conformity of pressure receptacles shall be assessed at time of manufacture as required by the competent authority. Pressure receptacles shall be inspected, tested and approved by an inspection body. The technical documentation shall include full specifications on design and construction, and full documentation on the manufacturing and testing. 6.2.1.4.2 Quality assurance systems shall conform to the requirements of the competent authority. 6.2.1.5 Initial inspection and test 6.2.1.5.1 New pressure receptacles, other than closed cryogenic receptacles and metal hydride storage systems, shall be subjected to testing and inspection during and after manufacture in accordance with the applicable design standards including the following: On an adequate sample of pressure receptacles: (a) Testing of the mechanical characteristics of the material of construction; (b) Verification of the minimum wall thickness; (c) Verification of the homogeneity of the material for each manufacturing batch; (d) Inspection of the external and internal conditions of the pressure receptacles; (e) Inspection of the neck threads; (f) Verification of the conformance with the design standard; For all pressure receptacles: (g) A hydraulic pressure test. Pressure receptacles shall withstand the test pressure without expansion greater than that allowed in the design specification; See for example CGA Publications S-1.2-2003 "Pressure Relief Device Standards-Part 2-Cargo and Portable Tanks for Compressed Gases" and S-1.1-2003 "Pressure Relief Device Standards-Part 1-Cylinders for Compressed Gases". Copyright © United Nations, 2010. All rights reserved - 331 - NOTE: With the agreement of the competent authority, the hydraulic pressure test may be replaced by a test using a gas, where such an operation does not entail any danger. (h) Inspection and assessment of manufacturing defects and either repairing them or rendering the pressure receptacles unserviceable. In the case of welded pressure receptacles, particular attention shall be paid to the quality of the welds; (i) An inspection of the markings on the pressure receptacles; (j) In addition, pressure receptacles intended for the carriage of UN No. 1001 acetylene, dissolved, and UN No. 3374 acetylene, solvent free, shall be inspected to ensure proper installation and condition of the porous material and, if applicable, the quantity of solvent. 6.2.1.5.2 On an adequate sample of closed cryogenic receptacles, the inspections and tests specified in 6.2.1.5.1 (a), (b), (d) and (f) shall be performed. In addition, welds shall be inspected by radiographic, ultrasonic or another suitable non-destructive test method on a sample of closed cryogenic receptacles according to the applicable design and construction standard. This weld inspection does not apply to the jacket. Additionally, all closed cryogenic receptacles shall undergo the initial inspections and tests specified in 6.2.1.5.1 (g), (h) and (i), as well as a leakproofness test and a test of the satisfactory operation of the service equipment after assembly. 6.2.1.5.3 For metal hydride storage systems, it shall be verified that the inspections and tests specified in 6.2.1.5.1 (a), (b), (c), (d), (e) if applicable, (f), (g), (h) and (i) have been performed on an adequate sample of the receptacles used in the metal hydride storage system. In addition, on an adequate sample of metal hydride storage systems, the inspections and tests specified in 6.2.1.5.1 (c) and (f) shall be performed, as well as 6.2.1.5.1 (e), if applicable, and inspection of the external conditions of the metal hydride storage system. Additionally, all metal hydride storage systems shall undergo the initial inspections and tests specified in 6.2.1.5.1 (h) and (i), as well as a leakproofness test and a test of the satisfactory operation of the service equipment. 6.2.1.6 Periodic inspection and test 6.2.1.6.1 Refillable pressure receptacles, other than cryogenic receptacles, shall be subjected to periodic inspections and tests by a body authorised by the competent authority, in accordance with the following: (a) Check of the external conditions of the pressure receptacle and verification of the equipment and the external markings; (b) Check of the internal conditions of the pressure receptacle (e.g. internal inspection, verification of minimum wall thickness); (c) Checking of the threads if there is evidence of corrosion or if the fittings are removed; (d) A hydraulic pressure test and, if necessary, verification of the characteristics of the material by suitable tests; (e) Check of service equipment, other accessories and pressure-relief devices, if to be reintroduced into service. Copyright © United Nations, 2010. All rights reserved - 332 - NOTE 1: With the agreement of the competent authority, the hydraulic pressure test may be replaced by a test using a gas, where such an operation does not entail any danger. NOTE 2: With the agreement of the competent authority, the hydraulic pressure test of cylinders or tubes may be replaced by an equivalent method based on acoustic emission testing or a combination of acoustic emission testing and ultrasonic examination. ISO 16148:2006 may be used as a guide for acoustic emission testing procedures. NOTE 3: The hydraulic pressure test may be replaced by ultrasonic examination carried out in accordance with ISO 10461:2005+A1:2006 for seamless aluminium alloy gas cylinders and in accordance with ISO 6406:2005 for seamless steel gas cylinders. NOTE 4: For the periodic inspection and test frequencies, see packing instruction P200 in 4.1.4.1. 6.2.1.6.2 Pressure receptacles intended for the carriage of UN No. 1001 acetylene, dissolved and UN No. 3374 acetylene, solvent free, shall be examined only as specified in 6.2.1.6.1 (a), (c) and (e). In addition the condition of the porous material (e.g. cracks, top clearance, loosening, settlement) shall be examined. 6.2.1.7 Requirements for manufacturers 6.2.1.7.1 The manufacturer shall be technically able and shall possess all resources required for the satisfactory manufacture of pressure receptacles; this relates in particular to qualified personnel: (a) To supervise the entire manufacturing process; (b) To carry out joining of materials; and (c) To carry out the relevant tests. 6.2.1.7.2 The proficiency test of a manufacturer shall in all instances be carried out by an inspection body approved by the competent authority of the country of approval. 6.2.1.8 Requirements for inspection bodies 6.2.1.8.1 Inspection bodies shall be independent from manufacturing enterprises and competent to perform the tests, inspections and approvals required. 6.2.2 Requirements for UN pressure receptacles In addition to the general requirements of section 6.2.1, UN pressure receptacles shall comply with the requirements of this section, including the standards, as applicable. 6.2.2.1 Design, construction and initial inspection and test 6.2.2.1.1 The following standards apply for the design, construction, and initial inspection and test of UN cylinders, except that inspection requirements related to the conformity assessment system and approval shall be in accordance with 6.2.2.5: Copyright © United Nations, 2010. All rights reserved - 333 - ISO 9809-1:1999 Gas cylinders – Refillable seamless steel gas cylinders – Design, construction and testing – Part 1: Quenched and tempered steel cylinders with tensile strength less than 1 100 MPa NOTE: The note concerning the F factor in section 7.3 of this standard shall not be applied for UN cylinders. ISO 9809-2:2000 Gas cylinders – Refillable seamless steel gas cylinders – Design, construction and testing – Part 2: Quenched and tempered steel cylinders with tensile strength greater than or equal to 1 100 MPa ISO 9809-3:2000 Gas cylinders – Refillable seamless steel gas cylinders – Design, construction and testing – Part 3: Normalized steel cylinders ISO 7866:1999 Gas cylinders – Refillable seamless aluminium alloy gas cylinders – Design, construction and testing NOTE: The note concerning the F factor in section 7.2 of this standard shall not be applied for UN cylinders. Aluminium alloy 6351A – T6 or equivalent shall not be authorised. ISO 4706:2008 Gas cylinders – Refillable welded steel cylinders – Test pressure 60 bar and below ISO 18172-1:2007 Gas cylinders – Refillable welded stainless steel cylinders – Part 1: Test pressure 6 MPa and below ISO 20703:2006 Gas cylinders – Refillable welded aluminium-alloy cylinders – Design, construction and testing ISO 11118:1999 Gas cylinders – Non-refillable metallic gas cylinders – Specification and test methods ISO 11119-1:2002 Gas cylinders of composite construction – Specification and test methods – Part 1: Hoop wrapped composite gas cylinders ISO 11119-2:2002 Gas cylinders of composite construction – Specification and test methods – Part 2: Fully wrapped fibre reinforced composite gas cylinders with load-sharing metal liners ISO 11119-3:2002 Gas cylinders of composite construction – Specification and test methods – Part 3: Fully wrapped fibre reinforced composite gas cylinders with non-load-sharing metallic or non-metallic liners NOTE 1: In the above referenced standards composite cylinders shall be designed for unlimited service life. NOTE 2: After the first 15 years of service, composite cylinders manufactured according to these standards, may be approved for extended service by the competent authority which was responsible for the original approval of the cylinders and which will base its decision on the test information supplied by the manufacturer or owner or user. 6.2.2.1.2 The following standard apply for the design, construction, and initial inspection and test of UN tubes, except that inspection requirements related to the conformity assessment system and approval shall be in accordance with 6.2.2.5: ISO 11120:1999 Gas cylinders – Refillable seamless steel tubes for compressed gas transport, of water capacity between 150 l and 3 000 l – Design, construction and testing NOTE: The note concerning the F factor in section 7.1 of this standard shall not be applied for UN tubes. 6.2.2.1.3 The following standards apply for the design, construction and initial inspection and test of UN acetylene cylinders, except that inspection requirements related to the conformity assessment system and approval shall be in accordance with 6.2.2.5: Copyright © United Nations, 2010. All rights reserved - 334 - For the cylinder shell: ISO 9809-1:1999 Gas cylinders – Refillable seamless steel gas cylinders – Design, construction and testing – Part 1: Quenched and tempered steel cylinders with tensile strength less than 1 100 MPa NOTE: The note concerning the F factor in section 7.3 of this standard shall not be applied for UN cylinders. ISO 9809-3:2000 Gas cylinders – Refillable seamless steel gas cylinders – Design, construction and testing – Part 3: Normalized steel cylinders For the porous material in the cylinder: ISO 3807-1:2000 Cylinders for acetylene – Basic requirements – Part 1: Cylinders without fusible plugs ISO 3807-2:2000 Cylinders for acetylene – Basic requirements – Part 2: Cylinders with fusible plugs 6.2.2.1.4 The following standard apply for the design, construction, and initial inspection and test of UN cryogenic receptacles, except that inspection requirements related to the conformity assessment system and approval shall be in accordance with 6.2.2.5: ISO 21029-1:2004 Cryogenic vessels – Transportable vacuum insulated vessels of not more than 1 000 l volume – Part 1: Design, fabrication, inspection and tests 6.2.2.1.5 The following standard applies for the design, construction, and initial inspection and test of UN metal hydride storage systems, except that inspection requirements related to the conformity assessment system and approval shall be in accordance with 6.2.2.5: ISO 16111:2008 Transportable gas storage devices – Hydrogen absorbed in reversible metal hydride 6.2.2.2 Materials In addition to the material requirements specified in the pressure receptacle design and construction standards, and any restrictions specified in the applicable packing instruction for the gas(es) to be carried (e.g. packing instruction P200 or P205 of 4.1.4.1), the following standards apply to material compatibility: ISO 11114-1:1997 Transportable gas cylinders – Compatibility of cylinder and valve materials with gas contents – Part 1: Metallic materials ISO 11114-2:2000 Transportable gas cylinders – Compatibility of cylinder and valve materials with gas contents – Part 2: Non-metallic materials NOTE: The limitations imposed in ISO 11114-1 on high strength steel alloys at ultimate tensile strength levels up to 1 100 MPa do not apply to UN No. 2203 silane. 6.2.2.3 Service equipment The following standards apply to closures and their protection: ISO 11117:1998 Gas cylinders – Valve protection caps and valve guards for industrial and medical gas cylinders – Design, construction and tests ISO 10297:2006 Transportable gas cylinders – Cylinder valves – Specification and type testing NOTE: The EN version of this ISO standard fulfils the requirements and may also be used. Copyright © United Nations, 2010. All rights reserved - 335 - For UN metal hydride storage systems, the requirements specified in the following standard apply to closures and their protection: ISO 16111:2008 Transportable gas storage devices – Hydrogen absorbed in reversible metal hydride 6.2.2.4 Periodic inspection and test The following standards apply to the periodic inspection and testing of UN cylinders and UN metal hydride storage systems: ISO 6406:2005 Periodic inspection and testing of seamless steel gas cylinders ISO 10461:2005 + A1:2006 Seamless aluminium-alloy gas cylinders – Periodic inspection and testing ISO 10462:2005 Gas cylinders – Transportable cylinders for dissolved acetylene – Periodic inspection and maintenance ISO 11623:2002 Transportable gas cylinders – Periodic inspection and testing of composite gas cylinders ISO 16111:2008 Transportable gas storage devices – Hydrogen absorbed in reversible metal hydride 6.2.2.5 Conformity assessment system and approval for manufacture of pressure receptacles 6.2.2.5.1 Definitions For the purposes of this sub-section: Conformity assessment system means a system for competent authority approval of a manufacturer, by pressure receptacle design type approval, approval of manufacturer's quality system and approval of inspection bodies; Design type means a pressure receptacle design as specified by a particular pressure receptacle standard; Verify means confirm by examination or provision of objective evidence that specified requirements have been fulfilled. 6.2.2.5.2 General requirements Competent authority 6.2.2.5.2.1 The competent authority that approves the pressure receptacle shall approve the conformity assessment system for the purpose of ensuring that pressure receptacles conform to the requirements of ADR. In instances where the competent authority that approves a pressure receptacle is not the competent authority in the country of manufacture, the marks of the approval country and the country of manufacture shall be indicated in the pressure receptacle marking (see 6.2.2.7 and 6.2.2.8). The competent authority of the country of approval shall supply, upon request, evidence demonstrating compliance to this conformity assessment system to its counterpart in a country of use. 6.2.2.5.2.2 The competent authority may delegate its functions in this conformity assessment system in whole or in part. Copyright © United Nations, 2010. All rights reserved - 336 - 6.2.2.5.2.3 The competent authority shall ensure that a current list of approved inspection bodies and their identity marks and approved manufacturers and their identity marks is available. Inspection body 6.2.2.5.2.4 The inspection body shall be approved by the competent authority for the inspection of pressure receptacles and shall: (a) Have a staff with an organisational structure, capable, trained, competent, and skilled, to satisfactorily perform its technical functions; (b) Have access to suitable and adequate facilities and equipment; (c) Operate in an impartial manner and be free from any influence which could prevent it from doing so; (d) Ensure commercial confidentiality of the commercial and proprietary activities of the manufacturer and other bodies; (e) Maintain clear demarcation between actual inspection body functions and unrelated functions; (f) Operate a documented quality system; (g) Ensure that the tests and inspections specified in the relevant pressure receptacle standard and ADR are performed; and (h) Maintain an effective and appropriate report and record system in accordance with 6.2.2.5.6. 6.2.2.5.2.5 The inspection body shall perform design type approval, pressure receptacle production testing and inspection, and certification to verify conformity with the relevant pressure receptacle standard (see 6.2.2.5.4 and 6.2.2.5.5). Manufacturer 6.2.2.5.2.6 The manufacturer shall: (a) Operate a documented quality system in accordance with 6.2.2.5.3; (b) Apply for design type approvals in accordance with 6.2.2.5.4; (c) Select an inspection body from the list of approved inspection bodies maintained by the competent authority in the country of approval; and (d) Maintain records in accordance with 6.2.2.5.6. Testing laboratory 6.2.2.5.2.7 The testing laboratory shall have: (a) Staff with an organisational structure, sufficient in number, competence, and skill; and (b) Suitable and adequate facilities and equipment to perform the tests required by the manufacturing standard to the satisfaction of the inspection body. Copyright © United Nations, 2010. All rights reserved - 337 - 6.2.2.5.3 Manufacturer's quality system 6.2.2.5.3.1 The quality system shall contain all the elements, requirements, and provisions adopted by the manufacturer. It shall be documented in a systematic and orderly manner in the form of written policies, procedures and instructions. The contents shall in particular include adequate descriptions of: (a) The organisational structure and responsibilities of personnel with regard to design and product quality; (b) The design control and design verification techniques, processes, and procedures that will be used when designing the pressure receptacles; (c) The relevant pressure receptacle manufacturing, quality control, quality assurance and process operation instructions that will be used; (d) Quality records, such as inspection reports, test data and calibration data; (e) Management reviews to ensure the effective operation of the quality system arising from the audits in accordance with 6.2.2.5.3.2; (f) The process describing how customer requirements are met; (g) The process for control of documents and their revision; (h) The means for control of non-conforming pressure receptacles, purchased components, in-process and final materials; and (i) Training programmes and qualification procedures for relevant personnel. 6.2.2.5.3.2 Audit of the quality system The quality system shall be initially assessed to determine whether it meets the requirements in 6.2.2.5.3.1 to the satisfaction of the competent authority. The manufacturer shall be notified of the results of the audit. The notification shall contain the conclusions of the audit and any corrective actions required. Periodic audits shall be carried out, to the satisfaction of the competent authority, to ensure that the manufacturer maintains and applies the quality system. Reports of the periodic audits shall be provided to the manufacturer. 6.2.2.5.3.3 Maintenance of the quality system The manufacturer shall maintain the quality system as approved in order that it remains adequate and efficient. The manufacturer shall notify the competent authority that approved the quality system, of any intended changes. The proposed changes shall be evaluated in order to determine whether the amended quality system will still satisfy the requirements in 6.2.2.5.3.1. Copyright © United Nations, 2010. All rights reserved - 338 - 6.2.2.5.4 Approval process Initial design type approval 6.2.2.5.4.1 The initial design type approval shall consist of approval of the manufacturer's quality system and approval of the pressure receptacle design to be produced. An application for an initial design type approval shall meet the requirements of 6.2.2.5.4.2 to 6.2.2.5.4.6 and 6.2.2.5.4.9. 6.2.2.5.4.2 A manufacturer desiring to produce pressure receptacles in accordance with a pressure receptacle standard and ADR shall apply for, obtain, and retain a design type approval certificate issued by the competent authority in the country of approval for at least one pressure receptacle design type in accordance with the procedure given in 6.2.2.5.4.9. This certificate shall, on request, be submitted to the competent authority of the country of use. 6.2.2.5.4.3 An application shall be made for each manufacturing facility and shall include: (a) The name and registered address of the manufacturer and in addition, if the application is submitted by an authorised representative, its name and address; (b) The address of the manufacturing facility (if different from the above); (c) The name and title of the person(s) responsible for the quality system; (d) The designation of the pressure receptacle and the relevant pressure receptacle standard; (e) Details of any refusal of approval of a similar application by any other competent authority; (f) The identity of the inspection body for design type approval; (g) Documentation on the manufacturing facility as specified under 6.2.2.5.3.1; and (h) The technical documentation required for design type approval, which shall enable verification of the conformity of the pressure receptacles with the requirements of the relevant pressure receptacle design standard. The technical documentation shall cover the design and method of manufacture and shall contain, as far as is relevant for assessment, at least the following: (i) pressure receptacle design standard, design and manufacturing drawings, showing components and subassemblies, if any; (ii) descriptions and explanations necessary for the understanding of the drawings and intended use of the pressure receptacles; (iii) a list of the standards necessary to fully define the manufacturing process; (iv) design calculations and material specifications; and (v) design type approval test reports, describing the results of examinations and tests carried out in accordance with 6.2.2.5.4.9. 6.2.2.5.4.4 An initial audit in accordance with 6.2.2.5.3.2 shall be performed to the satisfaction of the competent authority. Copyright © United Nations, 2010. All rights reserved - 339 - 6.2.2.5.4.5 If the manufacturer is denied approval, the competent authority shall provide written detailed reasons for such denial. 6.2.2.5.4.6 Following approval, changes to the information submitted under 6.2.2.5.4.3 relating to the initial approval shall be provided to the competent authority. Subsequent design type approvals 6.2.2.5.4.7 An application for a subsequent design type approval shall meet the requirements of 6.2.2.5.4.8 and 6.2.2.5.4.9, provided a manufacturer is in the possession of an initial design type approval. In such a case, the manufacturer's quality system according to 6.2.2.5.3 shall have been approved during the initial design type approval and shall be applicable for the new design. 6.2.2.5.4.8 The application shall include: (a) The name and address of the manufacturer and in addition, if the application is submitted by an authorised representative, its name and address; (b) Details of any refusal of approval of a similar application by any other competent authority; (c) Evidence that initial design type approval has been granted; and (d) The technical documentation, as described in 6.2.2.5.4.3 (h). Procedure for design type approval 6.2.2.5.4.9 The inspection body shall: (a) Examine the technical documentation to verify that: (i) the design is in accordance with the relevant provisions of the standard, and (ii) the prototype lot has been manufactured in conformity with the technical documentation and is representative of the design; (b) Verify that the production inspections have been carried out as required in accordance with 6.2.2.5.5; (c) Select pressure receptacles from a prototype production lot and supervise the tests of these pressure receptacles as required for design type approval; (d) Perform or have performed the examinations and tests specified in the pressure receptacle standard to determine that: (i) the standard has been applied and fulfilled, and (ii) the procedures adopted by the manufacturer meet the requirements of the standard; and (e) Ensure that the various type approval examinations and tests are correctly and competently carried out. After prototype testing has been carried out with satisfactory results and all applicable requirements of 6.2.2.5.4 have been satisfied, a design type approval certificate shall be issued, which shall include the name and address of the manufacturer, results and conclusions of the examination, and the necessary data for identification of the design type. Copyright © United Nations, 2010. All rights reserved - 340 - If the manufacturer is denied a design type approval, the competent authority shall provide written detailed reasons for such denial. 6.2.2.5.4.10 Modifications to approved design types The manufacturer shall either: (a) Inform the issuing competent authority of modifications to the approved design type, where such modifications do not constitute a new design, as specified in the pressure receptacle standard; or (b) Request a subsequent design type approval where such modifications constitute a new design according to the relevant pressure receptacle standard. This additional approval shall be given in the form of an amendment to the original design type approval certificate. 6.2.2.5.4.11 Upon request, the competent authority shall communicate to any other competent authority, information concerning design type approval, modifications of approvals and withdrawn approvals. 6.2.2.5.5 Production inspection and certification General requirements An inspection body, or its delegate, shall carry out the inspection and certification of each pressure receptacle. The inspection body selected by the manufacturer for inspection and testing during production may be different from the inspection body used for the design type approval testing. Where it can be demonstrated to the satisfaction of the inspection body that the manufacturer has trained competent inspectors, independent of the manufacturing operations, inspection may be performed by those inspectors. In such a case, the manufacturer shall maintain training records of the inspectors. The inspection body shall verify that the inspections by the manufacturer, and tests performed on those pressure receptacles, fully conform to the standard and the requirements of ADR. Should non-conformance in conjunction with this inspection and testing be determined, the permission to have inspection performed by the manufacturer's inspectors may be withdrawn. The manufacturer shall, after approval by the inspection body, make a declaration of conformity with the certified design type. The application of the pressure receptacle certification marking shall be considered a declaration that the pressure receptacle complies with the applicable pressure receptacle standards and the requirements of this conformity assessment system and ADR. The inspection body shall affix or delegate the manufacturer to affix the pressure receptacle certification marking and the registered mark of the inspection body to each approved pressure receptacle. A certificate of compliance, signed by the inspection body and the manufacturer, shall be issued before the pressure receptacles are filled. 6.2.2.5.6 Records Design type approval and certificate of compliance records shall be retained by the manufacturer and the inspection body for not less than 20 years. Copyright © United Nations, 2010. All rights reserved - 341 - 6.2.2.6 Approval system for periodic inspection and test of pressure receptacles 6.2.2.6.1 Definition For the purposes of this section: Approval system means a system for competent authority approval of a body performing periodic inspection and test of pressure receptacles (hereinafter referred to as "periodic inspection and test body"), including approval of that body’s quality system. 6.2.2.6.2 General requirements Competent authority 6.2.2.6.2.1 The competent authority shall establish an approval system for the purpose of ensuring that the periodic inspection and test of pressure receptacles conform to the requirements of ADR. In instances where the competent authority that approves a body performing periodic inspection and test of a pressure receptacle is not the competent authority of the country approving the manufacture of the pressure receptacle, the marks of the approval country of periodic inspection and test shall be indicated in the pressure receptacle marking (see 6.2.2.7). The competent authority of the country of approval for the periodic inspection and test shall supply, upon request, evidence demonstrating compliance to this approval system including the records of the periodic inspection and test to its counterpart in a country of use. The competent authority of the country of approval may terminate the approval certificate referred to in 6.2.2.6.4.1, upon evidence demonstrating non-compliance with the approval system. 6.2.2.6.2.2 The competent authority may delegate its functions in this approval system, in whole or in part. 6.2.2.6.2.3 The competent authority shall ensure that a current list of approved periodic inspection and test bodies and their identity marks is available. Periodic inspection and test body 6.2.2.6.2.4 The periodic inspection and test body shall be approved by the competent authority and shall: (a) Have a staff with an organisational structure, capable, trained, competent, and skilled, to satisfactorily perform its technical functions; (b) Have access to suitable and adequate facilities and equipment; (c) Operate in an impartial manner and be free from any influence which could prevent it from doing so; (d) Ensure commercial confidentiality; (e) Maintain clear demarcation between actual periodic inspection and test body functions and unrelated functions; (f) Operate a documented quality system accordance with 6.2.2.6.3; (g) Apply for approval in accordance with 6.2.2.6.4; Copyright © United Nations, 2010. All rights reserved - 342 - (h) Ensure that the periodic inspections and tests are performed in accordance with 6.2.2.6.5; and (i) Maintain an effective and appropriate report and record system in accordance with 6.2.2.6.6. 6.2.2.6.3 Quality system and audit of the periodic inspection and test body 6.2.2.6.3.1 Quality system The quality system shall contain all the elements, requirements, and provisions adopted by the periodic inspection and test body. It shall be documented in a systematic and orderly manner in the form of written policies, procedures, and instructions. The quality system shall include: (a) A description of the organisational structure and responsibilities; (b) The relevant inspection and test, quality control, quality assurance, and process operation instructions that will be used; (c) Quality records, such as inspection reports, test data, calibration data and certificates; (d) Management reviews to ensure the effective operation of the quality system arising from the audits performed in accordance with 6.2.2.6.3.2; (e) A process for control of documents and their revision; (f) A means for control of non-conforming pressure receptacles; and (g) Training programmes and qualification procedures for relevant personnel. 6.2.2.6.3.2 Audit The periodic inspection and test body and its quality system shall be audited in order to determine whether it meets the requirements of ADR to the satisfaction of the competent authority. An audit shall be conducted as part of the initial approval process (see 6.2.2.6.4.3). An audit may be required as part of the process to modify an approval (see 6.2.2.6.4.6). Periodic audits shall be conducted, to the satisfaction of the competent authority, to ensure that the periodic inspection and test body continues to meet the requirements of ADR. The periodic inspection and test body shall be notified of the results of any audit. The notification shall contain the conclusions of the audit and any corrective actions required. 6.2.2.6.3.3 Maintenance of the quality system The periodic inspection and test body shall maintain the quality system as approved in order that it remains adequate and efficient. The periodic inspection and test body shall notify the competent authority that approved the quality system, of any intended changes, in accordance with the process for modification of an approval in 6.2.2.6.4.6. Copyright © United Nations, 2010. All rights reserved - 343 - 6.2.2.6.4 Approval process for periodic inspection and test bodies Initial approval 6.2.2.6.4.1 A body desiring to perform periodic inspection and test of pressure receptacles in accordance with a pressure receptacle standard and ADR shall apply for, obtain, and retain an approval certificate issued by the competent authority. This written approval shall, on request, be submitted to the competent authority of a country of use. 6.2.2.6.4.2 An application shall be made for each periodic inspection and test body and shall include: (a) The name and address of the periodic inspection and test body and, if the application is submitted by an authorised representative, its name and address; (b) The address of each facility performing periodic inspection and test; (c) The name and title of the person(s) responsible for the quality system; (d) The designation of the pressure receptacles, the periodic inspection and test methods, and the relevant pressure receptacle standards met by the quality system; (e) Documentation on each facility, the equipment, and the quality system as specified under 6.2.2.6.3.1; (f) The qualifications and training records of the periodic inspection and test personnel; and (g) Details of any refusal of approval of a similar application by any other competent authority. 6.2.2.6.4.3 The competent authority shall: (a) Examine the documentation to verify that the procedures are in accordance with the requirements of the relevant pressure receptacle standards and ADR; and (b) Conduct an audit in accordance with 6.2.2.6.3.2 to verify that the inspections and tests are carried out as required by the relevant pressure receptacle standards and ADR, to the satisfaction of the competent authority. 6.2.2.6.4.4 After the audit has been carried out with satisfactory results and all applicable requirements of 6.2.2.6.4 have been satisfied, an approval certificate shall be issued. It shall include the name of the periodic inspection and test body, the registered mark, the address of each facility, and the necessary data for identification of its approved activities (e.g. designation of pressure receptacles, periodic inspection and test method and pressure receptacle standards). 6.2.2.6.4.5 If the periodic inspection and test body is denied approval, the competent authority shall provide written detailed reasons for such denial. Modifications to periodic inspection and test body approvals 6.2.2.6.4.6 Following approval, the periodic inspection and test body shall notify the issuing competent authority of any modifications to the information submitted under 6.2.2.6.4.2 relating to the initial approval. Copyright © United Nations, 2010. All rights reserved - 344 - The modifications shall be evaluated in order to determine whether the requirements of the relevant pressure receptacle standards and ADR will be satisfied. An audit in accordance with 6.2.2.6.3.2 may be required. The competent authority shall accept or reject these modifications in writing, and an amended approval certificate shall be issued as necessary. 6.2.2.6.4.7 Upon request, the competent authority shall communicate to any other competent authority, information concerning initial approvals, modifications of approvals, and withdrawn approvals. 6.2.2.6.5 Periodic inspection and test and certification The application of the periodic inspection and test marking to a pressure receptacle shall be considered a declaration that the pressure receptacle complies with the applicable pressure receptacle standards and the requirements of ADR. The periodic inspection and test body shall affix the periodic inspection and test marking, including its registered mark, to each approved pressure receptacle (see 6.2.2.7.7). A record certifying that a pressure receptacle has passed the periodic inspection and test shall be issued by the periodic inspection and test body, before the pressure receptacle is filled. 6.2.2.6.6 Records The periodic inspection and test body shall retain records of pressure receptacle periodic inspection and tests (both passed and failed) including the location of the test facility, for not less than 15 years. The owner of the pressure receptacle shall retain an identical record until the next periodic inspection and test unless the pressure receptacle is permanently removed from service. 6.2.2.7 Marking of refillable UN pressure receptacles NOTE: Marking requirements for UN metal hydride storage systems are given in 6.2.2.9. 6.2.2.7.1 Refillable UN pressure receptacles shall be marked clearly and legibly with certification, operational and manufacturing marks. These marks shall be permanently affixed (e.g. stamped, engraved, or etched) on the pressure receptacle. The marks shall be on the shoulder, top end or neck of the pressure receptacle or on a permanently affixed component of the pressure receptacle (e.g. welded collar or corrosion resistant plate welded on the outer jacket of a closed cryogenic receptacle). Except for the UN packaging symbol, the minimum size of the marks shall be 5 mm for pressure receptacles with a diameter greater than or equal to 140 mm and 2.5 mm for pressure receptacles with a diameter less than 140 mm. The minimum size of the UN packaging symbol shall be 10 mm for pressure receptacles with a diameter greater than or equal to 140 mm and 5 mm for pressure receptacles with a diameter less than 140 mm. 6.2.2.7.2 The following certification marks shall be applied: (a) The United Nations packaging symbol ; This symbol shall not be used for any purpose other than certifying that a packaging, a portable tank or a MEGC complies with the relevant requirements in Chapter 6.1, 6.2, 6.3, 6.5, 6.6 or 6.7. This symbol shall not be used for pressure receptacles which only conform to the requirements of 6.2.3 to 6.2.5 (see 6.2.3.9). Copyright © United Nations, 2010. All rights reserved - 345 - (b) The technical standard (e.g. ISO 9809-1) used for design, manufacture and testing; (c) The character(s) identifying the country of approval as indicated by the distinguishing signs for motor vehicles in international traffic 2; NOTE: The country of approval shall be understood to be the country that approved the body which inspected the individual receptacle at time of manufacture. (d) The identity mark or stamp of the inspection body that is registered with the competent authority of the country authorizing the marking; (e) The date of the initial inspection, the year (four digits) followed by the month (two digits) separated by a slash (i.e. "/"); 6.2.2.7.3 The following operational marks shall be applied: (f) The test pressure in bar, preceded by the letters "PH" and followed by the letters "BAR"; (g) The mass of the empty pressure receptacle including all permanently attached integral parts (e.g. neck ring, foot ring, etc.) in kilograms, followed by the letters "KG". This mass shall not include the mass of valve, valve cap or valve guard, any coating or porous material for acetylene. The mass shall be expressed to three significant figures rounded up to the last digit. For cylinders of less than 1 kg, the mass shall be expressed to two significant figures rounded up to the last digit. In the case of pressure receptacles for UN No. 1001 acetylene, dissolved and UN No. 3374 acetylene, solvent free, at least one decimal shall be shown after the decimal point and two digits for pressure receptacles of less than 1 kg; (h) The minimum guaranteed wall thickness of the pressure receptacle in millimetres followed by the letters "MM". This mark is not required for pressure receptacles with a water capacity less than or equal to 1 litre or for composite cylinders or for closed cryogenic receptacles; (i) In the case of pressure receptacles for compressed gases, UN No. 1001 acetylene, dissolved, and UN No. 3374 acetylene, solvent free, the working pressure in bar, preceded by the letters "PW". In the case of closed cryogenic receptacles, the maximum allowable working pressure preceded by the letters "MAWP"; (j) In the case of pressure receptacles for liquefied gases and refrigerated liquefied gases, the water capacity in litres expressed to three significant figures rounded down to the last digit, followed by the letter "L". If the value of the minimum or nominal water capacity is an integer, the figures after the decimal point may be neglected; (k) In the case of pressure receptacles for UN No. 1001 acetylene, dissolved, the total of the mass of the empty receptacle, the fittings and accessories not removed during filling, any coating, the porous material, the solvent and the saturation gas expressed to three significant figures rounded down to the last digit followed by the letters "KG". At least one decimal shall be shown after the decimal point. For pressure receptacles of less than 1 kg, the mass shall be expressed to two significant figures rounded down to the last digit; Distinguishing signs for motor vehicles in international traffic prescribed in the Vienna Convention on Road Traffic (1968). Copyright © United Nations, 2010. All rights reserved - 346 - (l) In the case of pressure receptacles for UN No. 3374 acetylene, solvent free, the total of the mass of the empty receptacle, the fittings and accessories not removed during filling, any coating and the porous material expressed to three significant figures rounded down to the last digit followed by the letters "KG". At least one decimal shall be shown after the decimal point. For pressure receptacles of less than 1 kg, the mass shall be expressed to two significant figures rounded down to the last digit; 6.2.2.7.4 The following manufacturing marks shall be applied: (m) Identification of the cylinder thread (e.g. 25E). This mark is not required for closed cryogenic receptacles; (n) The manufacturer's mark registered by the competent authority. When the country of manufacture is not the same as the country of approval, then the manufacturer's mark shall be preceded by the character(s) identifying the country of manufacture as indicated by the distinguishing signs for motor vehicles in international traffic 2. The country mark and the manufacturer’s mark shall be separated by a space or slash; (o) The serial number assigned by the manufacturer; (p) In the case of steel pressure receptacles and composite pressure receptacles with steel liner intended for the carriage of gases with a risk of hydrogen embrittlement, the letter "H" showing compatibility of the steel (see ISO 11114-1:1997). 6.2.2.7.5 The above marks shall be placed in three groups: - Manufacturing marks shall be the top grouping and shall appear consecutively in the sequence given in 6.2.2.7.4. - The operational marks in 6.2.2.7.3 shall be the middle grouping and the test pressure (f) shall be immediately preceded by the working pressure (i) when the latter is required. - Certification marks shall be the bottom grouping and shall appear in the sequence given in 6.2.2.7.2. The following is an example of the markings applied to a cylinder. Distinguishing signs for motor vehicles in international traffic prescribed in the Vienna Convention on Road Traffic (1968). (m) (n) (o) (p) 25E D MF 765432 H (i) (f) (g) (j) (h) PW200 PH300BAR 62.1KG 50L 5.8MM (a) (b) (c) (d) (e) ISO 9809-1 F IB 2000/12 Copyright © United Nations, 2010. All rights reserved - 347 - 6.2.2.7.6 Other marks are allowed in areas other than the side wall, provided they are made in low stress areas and are not of a size and depth that will create harmful stress concentrations. In the case of closed cryogenic receptacles, such marks may be on a separate plate attached to the outer jacket. Such marks shall not conflict with required marks. 6.2.2.7.7 In addition to the preceding marks, each refillable pressure receptacle that meets the periodic inspection and test requirements of 6.2.2.4 shall be marked indicating: (a) The character(s) identifying the country authorizing the body performing the periodic inspection and test. This marking is not required if this body is approved by the competent authority of the country approving manufacture; (b) The registered mark of the body authorised by the competent authority for performing periodic inspection and test; (c) The date of the periodic inspection and test, the year (two digits) followed by the month (two digits) separated by a slash (i.e. "/" ). Four digits may be used to indicate the year. The above marks shall appear consecutively in the sequence given. 6.2.2.7.8 For acetylene cylinders, with the agreement of the competent authority, the date of the most recent periodic inspection and the stamp of the body performing the periodic inspection and test may be engraved on a ring held on the cylinder by the valve. The ring shall be configured so that it can only be removed by disconnecting the valve from the cylinder. 6.2.2.7.9 For bundles of cylinders, pressure receptacle marking requirements shall only apply to the individual cylinders of a bundle and not to any assembly structure. 6.2.2.8 Marking of non-refillable UN pressure receptacles 6.2.2.8.1 Non-refillable UN pressure receptacles shall be marked clearly and legibly with certification and gas or pressure receptacle specific marks. These marks shall be permanently affixed (e.g. stencilled, stamped, engraved, or etched) on the pressure receptacle. Except when stencilled, the marks shall be on the shoulder, top end or neck of the pressure receptacle or on a permanently affixed component of the pressure receptacle (e.g. welded collar). Except for the UN packaging symbol and the "DO NOT REFILL" mark, the minimum size of the marks shall be 5 mm for pressure receptacles with a diameter greater than or equal to 140 mm and 2.5 mm for pressure receptacles with a diameter less than 140 mm. The minimum size of the UN packaging symbol shall be 10 mm for pressure receptacles with a diameter greater than or equal to 140 mm and 5 mm for pressure receptacles with a diameter less than 140 mm. The minimum size of the "DO NOT REFILL" mark shall be 5 mm. 6.2.2.8.2 The marks listed in 6.2.2.7.2 to 6.2.2.7.4 shall be applied with the exception of (g), (h) and (m). The serial number (o) may be replaced by the batch number. In addition, the words "DO NOT REFILL" in letters of at least 5 mm in height are required. 6.2.2.8.3 The requirements of 6.2.2.7.5 shall apply. NOTE: Non-refillable pressure receptacles may, on account of their size, substitute this marking by a label. 6.2.2.8.4 Other marks are allowed provided they are made in low stress areas other than the side wall and are not of a size and depth that will create harmful stress concentrations. Such marks shall not conflict with required marks. Copyright © United Nations, 2010. All rights reserved - 348 - 6.2.2.9 Marking of UN metal hydride storage systems 6.2.2.9.1 UN metal hydride storage systems shall be marked clearly and legibly with the marks listed below. These marks shall be permanently affixed (e.g. stamped, engraved, or etched) on the metal hydride storage system. The marks shall be on the shoulder, top end or neck of the metal hydride storage system or on a permanently affixed component of the metal hydride storage system. Except for the United Nations packaging symbol, the minimum size of the marks shall be 5 mm for metal hydride storage systems with a smallest overall dimension greater than or equal to 140 mm and 2.5 mm for metal hydride storage systems with a smallest overall dimension less than 140 mm. The minimum size of the United Nations packaging symbol shall be 10 mm for metal hydride storage systems with a smallest overall dimension greater than or equal to 140 mm and 5 mm for metal hydride storage systems with a smallest overall dimension less than 140 mm. 6.2.2.9.2 The following marks shall be applied: (a) The United Nations packaging symbol ; This symbol shall not be used for any purpose other than certifying that a packaging, a portable tank or a MEGC complies with the relevant requirements in Chapter 6.1, 6.2, 6.3, 6.5, 6.6 or 6.7; (b) "ISO 16111" (the technical standard used for design, manufacture and testing); (c) The character(s) identifying the country of approval as indicated by the distinguishing signs of motor vehicles in international traffic2; NOTE: The country of approval shall be understood to be the country that approved the body which inspected the individual receptacle at the time of manufacture. (d) The identity mark or stamp of the inspection body that is registered with the competent authority of the country authorizing the marking; (e) The date of the initial inspection, the year (four digits) followed by the month (two digits) separated by a slash (i.e. "/"); (f) The test pressure of the receptacle in bar, preceded by the letters "PH" and followed by the letters "BAR"; (g) The rated charging pressure of the metal hydride storage system in bar, preceded by the letters "RCP" and followed by the letters "BAR"; (h) The manufacturer's mark registered by the competent authority. When the country of manufacture is not the same as the country of approval, then the manufacturer's mark shall be preceded by the character(s) identifying the country of manufacture as indicated by the distinguishing signs of motor vehicles in international traffic2. The country mark and the manufacturer’s mark shall be separated by a space or slash; (i) The serial number assigned by the manufacturer; (j) In the case of steel receptacles and composite receptacles with steel liner, the letter "H" showing compatibility of the steel (see ISO 11114-1:1997); and, Distinguishing signs for motor vehicles in international traffic prescribed in the Vienna Convention on Road Traffic (1968). Copyright © United Nations, 2010. All rights reserved - 349 - (k) In the case of metal hydride storage systems having limited life, the date of expiry, denoted by the letters "FINAL" followed by the year (four digits) followed by the month (two digits) separated by a slash (i.e. "/"). The certification marks specified in (a) to (e) above shall appear consecutively in the sequence given. The test pressure (f) shall be immediately preceded by the rated charging pressure (g). The manufacturing marks specified in (h) to (k) above shall appear consecutively in the sequence given. 6.2.2.9.3 Other marks are allowed in areas other than the side wall, provided they are made in low stress areas and are not of a size and depth that will create harmful stress concentrations. Such marks shall not conflict with required marks. 6.2.2.9.4 In addition to the preceding marks, each metal hydride storage system that meets the periodic inspection and test requirements of 6.2.2.4 shall be marked indicating: (a) The character(s) identifying the country authorizing the body performing the periodic inspection and test, as indicated by the distinguishing sign of motor vehicles in international traffic2. This marking is not required if this body is approved by the competent authority of the country approving manufacture; (b) The registered mark of the body authorised by the competent authority for performing periodic inspection and test; (c) The date of the periodic inspection and test, the year (two digits) followed by the month (two digits) separated by a slash (i.e. "/" ). Four digits may be used to indicate the year. The above marks shall appear consecutively in the sequence given. 6.2.2.10 Equivalent procedures for conformity assessment and periodic inspection and test For UN pressure receptacles the requirements of 6.2.2.5 and 6.2.2.6 are considered to have been complied with when the following procedures are applied: Procedure Relevant body Type approval (1.8.7.2) Xa Supervision of manufacture (1.8.7.3) Xa or IS Initial inspection and tests (1.8.7.4) Xa or IS Periodic inspection (1.8.7.5) Xa or Xb or IS Xa means the competent authority, its delegate or inspection body conforming to 1.8.6.2, 1.8.6.4, 1.8.6.5 and 1.8.6.8 and accredited according to EN ISO/IEC 17020:2004 type A. Xb means inspection body conforming to 1.8.6.2, 1.8.6.4, 1.8.6.5 and 1.8.6.8 and accredited according to EN ISO/IEC 17020:2004 type B. IS means an in-house inspection service of the applicant under the surveillance of an inspection body conforming to 1.8.6.2, 1.8.6.4, 1.8.6.5 and 1.8.6.8 and accredited according to EN ISO/IEC 17020:2004 type A. The in-house inspection service shall be independent from design process, manufacturing operations, repair and maintenance. Distinguishing signs for motor vehicles in international traffic prescribed in the Vienna Convention on Road Traffic (1968). Copyright © United Nations, 2010. All rights reserved - 350 - 6.2.3 General requirements for non-UN pressure receptacles 6.2.3.1 Design and construction 6.2.3.1.1 Pressure receptacles and their closures not designed, constructed, inspected, tested and approved according to the requirements of 6.2.2 shall be designed, constructed, inspected, tested and approved in accordance with the general requirements of 6.2.1 as supplemented or modified by the requirements of this section and those of 6.2.4 or 6.2.5. 6.2.3.1.2 Whenever possible the wall thickness shall be determined by calculation, accompanied, if needed, by experimental stress analysis. Otherwise the wall thickness may be determined by experimental means. Appropriate design calculations for the pressure envelope and supporting components shall be used to ensure the safety of the pressure receptacles concerned. The minimum wall thickness to withstand pressure shall be calculated in particular with regard to: - The calculation pressures, which shall not be less than the test pressure; - The calculation temperatures allowing for appropriate safety margins; - The maximum stresses and peak stress concentrations where necessary; - Factors inherent to the properties of the material. 6.2.3.1.3 For welded pressure receptacles, only metals of weldable quality whose adequate impact strength at an ambient temperature of –20 °C can be guaranteed shall be used. 6.2.3.1.4 For closed cryogenic receptacles, the impact strength to be established as required by 6.2.1.1.8.1 shall be tested as laid down in 6.8.5.3. 6.2.3.2 (Reserved) 6.2.3.3 Service equipment 6.2.3.3.1 Service equipment shall comply with 6.2.1.3. 6.2.3.3.2 Openings Pressure drums may be provided with openings for filling and discharge and with other openings intended for level gauges, pressure gauges or relief devices. The number of openings shall be kept to a minimum consistent with safe operations. Pressure drums may also be provided with an inspection opening, which shall be closed by an effective closure. 6.2.3.3.3 Fittings (a) If cylinders are fitted with a device to prevent rolling, this device shall not be integral with the valve cap; (b) Pressure drums which are capable of being rolled shall be equipped with rolling hoops or be otherwise protected against damage due to rolling (e.g. by corrosion resistant metal sprayed on to the pressure receptacle surface); Copyright © United Nations, 2010. All rights reserved - 351 - (c) Bundles of cylinders shall be fitted with appropriate devices ensuring that they can be handled and carried safely; (d) If level gauges, pressure gauges or relief devices are installed, they shall be protected in the same way as is required for valves in 4.1.6.8. 6.2.3.4 Initial inspection and test 6.2.3.4.1 New pressure receptacles shall be subjected to testing and inspection during and after manufacture in accordance with the requirements of 6.2.1.5 except that 6.2.1.5.1 (g) shall be replaced by the following: (g) A hydraulic pressure test. Pressure receptacles shall withstand the test pressure without undergoing permanent deformation or exhibiting cracks. 6.2.3.4.2 Specific provisions applying to aluminium alloy pressure receptacles (a) In addition to the initial inspection required by 6.2.1.5.1, it is necessary to test for possible intercrystalline corrosion of the inside wall of the pressure receptacles where use is made of an aluminium alloy containing copper, or where use is made of an aluminium alloy containing magnesium and manganese and the magnesium content is greater than 3.5% or the manganese content lower than 0.5%; (b) In the case of an aluminium/copper alloy the test shall be carried out by the manufacturer at the time of approval of a new alloy by the competent authority; it shall thereafter be repeated in the course of production, for each pour of the alloy; (c) In the case of an aluminium/magnesium alloy the test shall be carried out by the manufacturer at the time of approval of a new alloy and of the manufacturing process by the competent authority. The test shall be repeated whenever a change is made in the composition of the alloy or in the manufacturing process. 6.2.3.5 Periodic inspection and test 6.2.3.5.1 Periodic inspection and test shall be in accordance with 6.2.1.6.1. NOTE: With the agreement of the competent authority of the country that issued the type approval, the hydraulic pressure test of each welded steel cylinder intended for the carriage of gases of UN No. 1965, hydrocarbon gas mixture liquefied, n.o.s., with a capacity below 6.5 l may be replaced by another test ensuring an equivalent level of safety. 6.2.3.5.2 (Deleted) 6.2.3.6 Approval of pressure receptacles 6.2.3.6.1 The procedures for conformity assessment and periodic inspection of section 1.8.7 shall be performed by the relevant body according to the following table. Procedure Relevant body Type approval (1.8.7.2) Xa Supervision of manufacture (1.8.7.3) Xa or IS Initial inspection and tests (1.8.7.4) Xa or IS Periodic inspection (1.8.7.5) Xa or Xb or IS Copyright © United Nations, 2010. All rights reserved - 352 - The conformity assessment of valves and other accessories having a direct safety function may be carried out separately from the receptacles and the conformity assessment procedure shall be at least as stringent as that undergone by the pressure receptacle to which they are fitted. Xa means the competent authority, its delegate or inspection body conforming to 1.8.6.2, 1.8.6.4, 1.8.6.5 and 1.8.6.8 and accredited according to EN ISO/IEC 17020:2004 type A. Xb means inspection body conforming to 1.8.6.2, 1.8.6.4, 1.8.6.5 and 1.8.6.8 and accredited according to EN ISO/IEC 17020:2004 type B. IS means an in-house inspection service of the applicant under the surveillance of an inspection body conforming to 1.8.6.2, 1.8.6.4, 1.8.6.5 and 1.8.6.8 and accredited according to EN ISO/IEC 17020:2004 type A. The in-house inspection service shall be independent from design process, manufacturing operations, repair and maintenance. 6.2.3.6.2 If the country of approval is not a Contracting Party to ADR, the competent authority mentioned in 6.2.1.7.2 shall be the competent authority of a Contracting Party to ADR. 6.2.3.7 Requirements for manufacturers 6.2.3.7.1 The relevant requirements of 1.8.7 shall be met. 6.2.3.8 Requirements for inspection bodies The requirements of 1.8.6 shall be met. 6.2.3.9 Marking of refillable pressure receptacles 6.2.3.9.1 Markings shall be in accordance with sub-section 6.2.2.7 with the following variations. 6.2.3.9.2 The United Nations packaging symbol specified in 6.2.2.7.2 (a) shall not be applied. 6.2.3.9.3 The requirements of 6.2.2.7.3 (j) shall be replaced by the following: (j) The water capacity of the pressure receptacle in litres followed by the letter "L". In the case of pressure receptacles for liquefied gases the water capacity in litres shall be expressed to three significant figures rounded down to the last digit. If the value of the minimum or nominal water capacity is an integer, the figures after the decimal point may be neglected. 6.2.3.9.4 The marks specified in 6.2.2.7.3 (g) and (h) and 6.2.2.7.4 (m) are not required for pressure receptacles for UN No. 1965 hydrocarbon gas mixture, liquefied, n.o.s. 6.2.3.9.5 When marking the date required by 6.2.2.7.7 (c), the month need not be indicated for gases for which the interval between periodic inspections is 10 years or more (see packing instructions P200 and P203 of 4.1.4.1). 6.2.3.9.6 The marks in accordance with 6.2.2.7.7 may be engraved on a ring of an appropriate material affixed to the cylinder when the valve is installed and which is removable only by disconnecting the valve from the cylinder. 6.2.3.10 Marking of non-refillable pressure receptacles 6.2.3.10.1 Markings shall be in accordance with 6.2.2.8, except that the United Nations packaging symbol specified in 6.2.2.7.2 (a) shall not be applied. Copyright © United Nations, 2010. All rights reserved - 353 - 6.2.4 Requirements for non-UN pressure receptacles designed, constructed and tested according to referenced standards NOTE: Persons or bodies identified in standards as having responsibilities in accordance with ADR shall meet the requirements of ADR. 6.2.4.1 Design, construction and initial inspection and test The standards referenced in the table below shall be applied for the issue of type approvals as indicated in column (4) to meet the requirements of Chapter 6.2 referred to in column (3). The requirements of Chapter 6.2 referred to in column (3) shall prevail in all cases. Column (5) gives the latest date when existing type approvals shall be withdrawn according to 1.8.7.2.4; if no date is shown the type approval remains valid until it expires. Since 1 January 2009 the use of the referenced standards has been mandatory. Exceptions are dealt with in 6.2.5. If more than one standard is referenced for the application of the same requirements, only one of them shall be applied, but in full unless otherwise specified in the table below. Reference Title of document Applicable subsections and paragraphs Applicable for new type approvals or for renewals Latest date for withdrawal of existing type approvals

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