SOUTH AFRICAN NATIONAL STANDARD

Transcription

1 ISBN SOUTH AFRICAN NATIONAL STANDARD Transportable pressure receptacles for compressed, dissolved and liquefied gases Basic design, manufacture, use and maintenance Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001 Tel: Fax: SABS

2 Table of changes Change No. Date Scope Foreword This South African standard was approved by National Committee SABS TC 58, Vessels under pressure, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This document was published in September This document supersedes SANS 10019:2008 (edition 6). This document was written in order to support a specific South African Regulation and, of necessity, includes references to South African legislation. It therefore might not be suitable for direct application in other jurisdictions where conflicting legislation exists. Reference is made in 3.2 and 3.30 to the relevant national legislation. In South Africa this means section 3 of the Accreditation for Conformity Assessment, Calibration and Good Laboratory Practice Act, 2006 (Act No. 19 of 2006). Reference is made in 3.6(a) to relevant national legislation. In South Africa this means the Occupational Health and Safety Act, 1993 (Act No. 85 of 1993). Reference is made in 3.6(b) to relevant national legislation. In South Africa this means the Mine Health and Safety Act, 1996 (Act No. 29 of 1996). Reference is made in NOTE 2 to 3.25, 4.1 (two references) and to relevant national legislation. In South Africa this means the Pressure Equipment regulations (PER) and Occupational Health and Safety Act, 1993 (Act No. 85 of 1993). Reference is made in and to relevant national legislation. In South Africa this means the Regulations of the Trade Metrology Act, 1973 (Act No. 77 of 1973). Reference is made in the NOTE to to relevant national legislation. In South Africa this means the Diving Regulation of the Occupational Health and Safety Act, 1993 (Act No. 85 of 1993). Reference is made in and to relevant national legislation. In South Africa this means the National Road Traffic Act, 1996 (Act No. 93 of 1996). Reference is made in to relevant national legislation. In South Africa this means the Hazardous Chemical Substances Regulation 9a of the Occupational Health and Safety Act, 1993, (Act No. 85 of 1993). Reference is made in 11.3 to relevant national legislation. In South Africa this means clause 24 of the Occupational Health and Safety Act, 1993, (Act No. 85 of 1993). Annexes A, A1, C, D and E form an integral part of this document. Annexes B and F are for information only.

3 Contents Page Foreword 1 Scope Normative references Definitions Design and manufacturing requirements Valves Pressure relief devices Revalidation of pressure receptacles Marking, labelling, colour coding and certificates Filling of pressure receptacles Handling, storage, transportation and use General safety precautions Table 1 Reference temperatures Table 2 Properties and pressure groups of permanent gases Table 3 Table 4 Permanent gases: charging pressures and corresponding developed pressures Permanent gases: developed pressures and corresponding charging pressures Table 5 High-pressure liquefiable gases Table 6 Low-pressure liquefiable gases Table 7 Class of pressure receptacles for specific gases Table 8 Schedule of cylinder valve outlet connections for various gases Table 9 Schedule of valve outlets for refrigerants class Table 10 SCUBA cylinders outlet connections Table 11 Neck threads for cylinders

4 Contents (concluded) Table 12 Colour marking of gas cylinders Table 13 Refillable refrigerant cylinder colour chart Table 14 Pre-fill inspection/rejection criteria for all cylinders other than welded LPG cylinders Table 15 Pre-fill inspection/rejection criteria for LPG welded steel cylinders Annex A (normative) List of current approved manufacturing standards for the importation and manufacture of gas pressure receptacles in South Africa Annex A1 (normative) List of special conditions applicable to current approved manufacturing standards for the importation and manufacture of gas pressure receptacles in South Africa Annex B (informative) Pressure receptacle valve standards Annex C (normative) Frequency of inspections and tests for pressure receptacles Annex D (normative) Schedule of SCUBA and SCBA cylinder colour coding and labels Annex E (normative) Placement of cylinders Annex F (informative) Developed pressure for permanent gases Bibliography Page 2

5 Transportable pressure receptacles for compressed, dissolved and liquefied gases Basic design, manufacture, use and maintenance 1 Scope 1.1 This standard covers the minimum requirements for the design, manufacture, use and maintenance of refillable and non refillable pressure receptacles of water capacity 0,5 L to L and cartridges of > 0,5 L, and may include requirements over and above those contained within the cylinder design and manufacturing standards (see annex A). 1.2 In addition to industrial, medical and domestic type pressure receptacles, this standard also covers cylinders for self-contained underwater breathing apparatus (SCUBA) for recreational diving, selfcontained surface breathing apparatus (SCBA), fire-fighting extinguishers and fixed fire-fighting extinguishing systems. 1.3 The standard covers the design requirements for CO 2 and High Pressure Inert gas mixtures used in portable and fixed fire-fighting systems, but excludes the operational performance requirements of portable and fixed fire-fighting extinguishing systems (see SANS 1572 and SANS 1567). 1.4 It does not cover special pressure receptacles used in aircraft or air-brake reservoirs and SCUBA cylinders for professional use. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. Information on currently valid national and international standards can be obtained from the SABS Standards Division. ADR P200, Gas cylinders Safe use of gas cylinders. BS 341-1, Transportable gas container valves Specification for industrial valves for working pressures up to and including 300 bar. BS 341-3, Transportable gas container valves Valve outlet connections. BS 341-4, Transportable gas container valves Pressure relief devices. CGA V1, Standard for compressed gas cylinder valve outlet and inlet connections. 3