Draft Details
- UN pressure receptacles and multiple-element g...
- Draft Standard
- Legal Notice for Draft Standards
- SDG foreword
- Preface
- + 1 Scope
- 1.1 Subjects addressed
- 1.2 Terminology
- 2 Reference publications
- 3 Definitions
- + 4 General requirements for UN pressure receptac...
- + 4.1 Design and construction
- 4.1.1 General
- 4.1.2 Minimum wall thickness
- 4.1.3 Welded UN pressure receptacles
- 4.1.4 Test pressure
- 4.1.5 Contact between dissimilar metals
- + 4.1.6 UN cryogenic receptacles
- 4.1.6.1 Thermal insulation and protection requi...
- 4.1.6.2 Materials Restrictions for UN Cryogenic...
- 4.1.6.3 Lifting and Securing Means
- 4.1.7 UN cylinders for acetylene service
- 4.2 Pressure-relief devices
- 4.3 Initial inspection and testing
- + 4.4 Marking
- + 4.4.1 Marking of refillable UN pressure recepta...
- 4.4.1.1 General
- + 4.4.1.2 Marks
- 4.4.1.2.1 Certification marks
- 4.4.1.2.2 Operational marks
- 4.4.1.2.3 Manufacturing marks
- 4.4.1.3 Arrangement of marks
- + 4.4.2 Marking of non-refillable UN pressure rec...
- 4.4.2.1 Marking requirements
- 4.4.2.2 Additional marking requirements
- 4.4.2.3 Marking permanence and locations
- 4.4.2.4 Marking size requirements
- 4.4.2.5
- 4.4.2.6 Marking arrangement requirements
- + 4.4.3 Marking of UN metal hydride storage syste...
- 4.4.3.1 General
- 4.4.3.2 Marks
- 4.4.3.3 Arrangement of marks
- + 4.4.4 Marking of UN bundles of cylinders
- + 4.4.4.1 General
- 4.4.4.1.1 Marking requirements
- 4.4.4.1.2 Additional requirements
- 4.4.4.2 Marks
- 4.4.4.3 Arrangement of marks
- + 5 General requirements for multiple-element gas...
- + 5.1 Design and construction
- 5.1.1 Design and construction requirements
- 5.1.2 Design and Manufacturing Requirements
- 5.1.3 Additional requirements
- 5.1.4 Galvanic Compatibility
- 5.1.5 Multiple-elements
- 5.1.6 Load Capacity Requirements
- 5.1.7 Stress Limitation
- 5.1.8 Safety factor for framework and fastening...
- 5.1.9 Grounding of Multiple-Element Gas Contain...
- 5.1.10 Securing of Elements
- + 5.2 Service equipment
- 5.2.1 Equipment Design and Protection
- 5.2.2 Valve Requirements for Transport of Gases...
- 5.2.3 Stop Valve or Means of Closure Design and...
- 5.2.4 Valves for Filling and Discharge Openings...
- 5.2.5 Marking and Direction of Closure for Isol...
- 5.2.6 Stop Valve Design and Positioning
- 5.2.7 Pressure-relief valve for trapped gas in ...
- 5.2.8 Design and Installation
- 5.3 Pressure-relief devices
- 5.4 Gauging devices
- + 5.5 Supports, frameworks, lifting, and tie-down...
- 5.5.1 Support Structure Design
- 5.5.2 Protection of Multiple-Element Gas Contai...
- 5.5.3 Stress and Load Limitations
- 5.5.4 Environmental Considerations in Support a...
- 5.5.5 Protection of External Fittings
- 5.6 Initial inspection and testing
- + 5.7 Marking
- 5.7.1 Identification Plate for Multiple-Element...
- 5.7.2 Marking and Identification Plate
- 5.7.3 Marking Requirements
- 5.7.4 Marking of TC IMPACT APPROVED on Metal Id...
- 6 UN refillable seamless steel cylinders and tu...
- 7 UN refillable seamless aluminum-alloy cylinde...
- 8 Composite UN cylinders and composite UN tubes...
- 9 UN refillable seamless steel tubes
- 10 UN refillable welded steel cylinders
- 11 UN refillable welded stainless steel cylinde...
- 12 UN refillable welded aluminum-alloy cylinder...
- + 13 UN cylinders for acetylene service
- 13.1 Design, Construction, Inspection, and Test...
- 13.2 Porous mass requirements for UN cylinders ...
- 14 UN cryogenic receptacles
- 15 UN metal hydride storage systems
- 16 UN cylinders for adsorbed gases
- 17 UN non-refillable metal cylinders
- 18 UN bundles of cylinders
- 19 UN pressure drums
- + 20 Periodic inspection and testing of UN refill...
- + 20.1 UN refillable pressure receptacles
- 20.1.1 Periodic Inspection and Testing
- 20.1.2 Periodic Inspection and Testing Requirem...
- 20.1.3 Pressure Testing Methods
- 20.1.4 Alternative Inspection and Testing Metho...
- 20.1.5 Inspection of Mounting Surfaces for UN R...
- 20.1.6 Inspection and Testing Requirements for ...
- 20.1.7 Valve Inspection and Maintenance
- + 20.2 Multiple-element gas containers
- 20.2.1 Periodic Inspection and Test of Multiple...
- 20.2.2 Inspection and testing of the elements a...
- 20.2.3 Exceptional Inspection and Test for Mult...
- 20.2.4 Unsafe condition correction and verifica...
- + 21 Repair of UN refillable pressure receptacles...
- 21.1 UN refillable pressure receptacles
- 21.2 Multiple-element gas containers
- + 22 Marking after periodic inspection and testin...
- 22.1 Marking of UN refillable pressure receptac...
- 22.2 Marking of pressure receptacles that are r...
- Table 1
- Table 2
- Table 3
- Table 4
- Table 5
- Table 6
- Table 7
- Table 8
- Table 9
- Table 10
- + Annex A (normative)
- + A.1 General
- A.1.1 Conformity assessment system and registra...
- A.1.2 Quality system, design type registration,...
- + A.1.3 Inspection
- A.1.3.1 Requirements for Inspection Bodies
- A.1.3.2 Responsibilities of the Inspection Body...
- A.1.4 Language requirements for registration ap...
- + A.2 Registration process and requirements for m...
- + A.2.1 Manufacturer’s quality system
- A.2.1.1 Quality System Requirements
- A.2.1.2 Maintenance of the quality system
- + A.2.2 Design type registration process
- A.2.2.1 Initial design type registration
- A.2.2.2 Application for design type registratio...
- A.2.2.3 Procedure for design type registration
- + A.2.2.4 Subsequent design type registrations
- A.2.2.4.1 Addendum to Certificate of Registrati...
- A.2.2.4.2 Application Requirements
- + A.2.2.5 Modifications to registered design type...
- A.2.2.5.1 Design Type Registration
- A.2.2.5.2 Application requirements
- + A.2.2.6 Modifications to manufacturer registrat...
- A.2.2.6.1 Application for Amendment of Certific...
- A.2.2.6.2 Scope Change
- A.2.2.6.3 Reason for Request
- + A.2.2.7 Renewal of manufacturer registrations
- A.2.2.7.1 Certificate of Registration and Renew...
- A.2.2.7.2 Validity of Certificate of Registrati...
- + A.2.3 Production inspection and certification
- A.2.3.1 Inspection and Certification Requiremen...
- A.2.3.2 Declaration of Conformity and Certifica...
- A.2.3.3 Certificate of compliance and test repo...
- A.3 Records
- + A.4 Registration process for inspection bodies ...
- + A.4.1 Quality system of the inspection body
- A.4.1.1 Quality System Requirements
- A.4.1.2 Maintenance of the quality system
- + A.4.2 Initial registration
- A.4.2.1 Certificate of Registration
- A.4.2.2 Application for Registration Requiremen...
- A.4.3 Modifications to inspection body registra...
- + A.4.4 Renewal of inspection body registrations
- A.4.4.1 Certificate of Registration and Renewal...
- A.4.4.2 Validity of Certificate of Registration...
- + Annex B (normative)
- + B.1 General
- B.1.1 Conformity Assessment and Registration Re...
- B.1.2 Periodic inspection and test body and the...
- B.1.3 Language of registration
- + B.2 Registration process and requirements for p...
- + B.2.1 Quality system
- B.2.1.1 Quality System Requirements
- B.2.1.2 Maintenance of the quality system
- + B.2.2 Initial registration
- B.2.2.1 Registration Requirements
- B.2.2.2 Application for Periodic Inspection and...
- B.2.3 Modifications to periodic inspection and ...
- B.2.4 Periodic inspection and test, repair, and...
- + B.2.5 Renewal of periodic inspection and test b...
- B.2.5.1 Validity and Renewal
- B.2.5.2 Validity of Certificate of Registration...
- B.3 Records
- + Annex C (normative)
- C.1 Application for multiple-element gas contai...
- + C.2 Design review
- C.2.1 Design Review Agency Assessment
- C.2.2 Preliminary Design Review by Design Revie...
- C.2.3 Preliminary Design Review
- C.2.4 Design Review Agency's Denial of Approval...
- C.2.5 Design Review Agency Approval
- C.2.6 Prototype Testing
- C.2.7 Prototype Test Witnessing by Design Revie...
- C.2.8 Design Review Agency Responsibilities
- C.2.9 Design Review Agency Notification
- C.2.10 Design review agency requirements
- C.2.11 Design Approval Number
- C.2.12 Design Approval and Document Retention
- + C.3 Design approval certificate
- C.3.1 Issue and Validity of Certificate
- C.3.2 Design Approval Certificate requirements
- C.3.3 Additional requirements
- C.3.4 Provision of copy to manufacturer
- C.3.5 Retention of copy
- C.3.6 Filing a copy with the director
- + C.4 Permitted design variations
- C.4.1 Approval of Variant Multiple-Element Gas ...
- C.4.2 Assignment of Original approved multiple-...
- + C.5 Modifications to approved multiple-element ...
- C.5.1 Design Review for Modification of Multipl...
- C.5.2 Design Modification Submission Requiremen...
- C.5.3 Design Review Agency Submission Review
- C.5.4 Design Modification Submission Requiremen...
- C.5.5 Design Modification request Review
- C.5.6 Document assessment during review
- C.5.7 Compliance
- C.5.8 Additional Compliance
- C.5.9 Retesting of Modified Multiple-Element Ga...
- C.5.10 Design Review Agency Approval for propos...
- C.5.11 Copy of the approval documents
- C.5.12 Issuance of design approval certificatio...
- C.5.13 Design Approval Certificate Validity for...
- + Annex D (informative)
- D.1 General
- + Annex E (informative)
- E.1 General
1.1 Subjects addressed
This Standard specifies requirements for the design, construction, initial inspection and testing, marking, periodic inspection and testing, and repair of UN pressure receptacles and multiple-element gas containers for the transport of dangerous goods. Annex A specifies the regulatory requirements for the conformity assessment system and registration requirements for manufacturers and inspection bodies. Annex B specifies the regulatory requirements for the conformity assessment system and registration requirements for periodic inspection and test bodies and for repair facilities. Annex C specifies the design approval process for multiple-element gas containers. Tables 1 to 9 provide information on the UN pressure receptacles covered by this Standard.
Note: It should be noted that compliance with the provisions of the Transportation of Dangerous Goods Act and the Regulations thereto may call for additional requirements due to particular characteristics or properties of individual dangerous goods.
1.2 Terminology
In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.
Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.
Notes to tables and figures are considered part of the table or figure and may be written as requirements.
Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
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