1、BRITISH STANDARD BS5045-6: 1987 Transportable gas containers Part 6: Specification for seamless containers of less than0.5 litre water capacity UDC 621.772.43:66.076.5:621.642.2.02:669.14+669.715BS5045-6:1987 This British Standard, having been prepared under the directionof the Pressure VesselStanda
2、rds Committee, waspublished under the authorityof the Board of BSI andcomes into effect on 23 December1987 BSI 03-1999 First published October 1981 First revision December 1987 The following BSI references relate to the work on this standard: Committee reference PVE/3 Draft for comment 84/72138 DC I
3、SBN 0 580 16234 6 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Pressure Vessel Standards Committee (PVE/-) to Technical Committee PVE/3, upon which the following bodies were represented: Aluminium Federation Associated Offices Technic
4、al Committee Association of Manufacturers of Domestic Electrical Appliances British Compressed Gases Association British Fire Protection Systems Association Ltd. British Railways Board Chief and Assistant Chief Fire Officers Association Department of Trade and Industry Mechanical Engineering and Man
5、ufacturing Technology Division (Mmt) Department of Trade and Industry (National Engineering Laboratory) Department of Trade and Industry (National Physical Laboratory) Department of Transport (Marine Directorate) Engineering Equipment and Materials Users Association Fire Extinguishing Trades Associa
6、tion Health and Safety Executive Home Office Industrial Safety (Protective Equipment) Manufacturers Association Institute of Refrigeration Institution of Chemical Engineers Liquefied Petroleum Gas Industry Technical Association (UK) Metal Packaging Manufacturers Association Ministry of Defence Natio
7、nal Association of Soft Drinks Manufacturers Ltd. Society of Motor Manufacturers and Traders Limited Coopted members Amendments issued since publication Amd. No. Date of issue CommentsBS5045-6:1987 BSI 03-1999 i Contents Page Committees responsible Inside front cover Foreword ii Section 1. General 1
8、 Scope 1 2 Definition 1 3 Classification of gases 1 4 Information to be supplied by the purchaser and manufacturer 1 Section 2. Permissible materials 5 Materials of construction 5 Section 3. Manufacture and workmanship 6 Approval of design and construction details 6 7 Permissible processes 6 Section
9、 4. Design 8 Service conditions for design 7 9 Test pressure 7 10 Design of container shell 8 Section 5. Quality control and assessment 11 Material 9 12 Identification 9 13 Test requirements 9 14 Prototype fatigue test 11 15 Results of tests 13 16 Marking 13 Figure 1 Hardness numbers related to tens
10、ile strengths of steel 12 Table 1 Classification of gases 2 Table 2 Reference temperatures for developed pressure for conveyance ofgases in the UK 7 Table 3 Formulae for deriving minimum values of test pressure P 1 7 Publications referred to Inside back coverBS5045-6:1987 ii BSI 03-1999 Foreword Thi
11、s Part of BS5045 has been prepared under the direction of the Pressure Vessel Standards Committee. The present revision updates the1981 edition by amending the formulae for deriving minimum values of test pressure and by replacing the bend test requirement by a tensile/hardness test. Opportunity has
12、 also been taken to make other changes deemed necessary as a result of experience with the1981 edition which is withdrawn. The quality control procedures employed by the manufacturer should be audited with respect to this Part of BS5045 at least once every two years by an independent inspecting auth
13、ority. The auditors report should be made available to the purchaser if required. BS5045 deals with the materials, design and construction and testing of new containers and is divided into several Parts to cover the various forms of manufacture. Those Parts published or in preparation are as follows
14、: Part 1: Specification for seamless steel gas containers above0.5 litre water capacity; Part 2: Steel containers up to130 litres water capacity with welded seams; Part 3: Specification for seamless aluminium alloy gas containers above0.5litre water capacity and up to300 bar charged pressure at15C;
15、Part 5: Specification for aluminium alloy containers above0.5 litre upto130litres water capacity with welded seams. Further related standards are BS5355, BS5430, BS6061 and BS6071. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards a
16、re responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, pages1 to14, an inside back cover and a back cover. This standard h
17、as been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on theinside front cover.BS5045-6:1987 BSI 03-1999 1 Section 1. General 1 Scope This Part of BS5045 specifies requirements for the design, manufacture and testing of seamless
18、refillable steel or aluminium alloy transportable containers of less than0.5litre water capacity, for the conveyance of gases under pressure. Such containers are also suitable for storing gases under pressure. In addition to the definitive requirements, this Part of BS5045 also requires the items de
19、tailed in clause4 to be documented. For compliance with this Part of BS5045, both the definitive requirements and the documented items have to be satisfied. NOTEThe titles of the publications referred to in this standard are listed on the inside back cover. 2 Definition For the purposes of this Part
20、 of BS5045 the following definition applies. independent inspecting authority an inspecting organization approved by the Health and Safety Executive 3 Classification of gases 3.1 General For the purposes of the design and filling of the container, gases are classified as follows. a) Permanent gases.
21、 Those gases that have a critical temperature below 10 C. b) Liquefiable gases. Those gases that are liquefiable by pressure at10C but that arecompletely vapourized at17.5C when at1013mbar 1) . 1) High pressure liquefiable gases. Those gases that have a critical temperature between 10C and 70C inclu
22、sive. 2) Low pressure liquefiable gases. Those gases that have a critical temperature above70C. Those toxic substances that are liquids at1013mbar pressure at0C, but that are completely vaporized at or below30C at that pressure, are treated as low pressure liquefiable gases and are included under th
23、at heading in Table 1. Gases that are currently conveyed in commercial quantities are classified in Table 1. 3.2 Gases that are permitted to be contained in aluminium alloy containers Gases that are permitted to be contained in aluminium alloy containers are indicated by an asterisk in Table 1. 3.3
24、Gases that shall not be contained in aluminium alloy containers Subject to the exceptions stated (see3.2), the following gases shall not be contained in aluminium alloy containers. Where certain of these gases are to be contained in aluminium alloy containers in small quantities as components of gas
25、 mixtures, approval for such use shall be sought from the Health and Safety Executive. acetylene boron trifluoride bromotrifluoroethylene carbonyl chloride chlorine chlorine trifluoride cyanogen chloride fluorine hydrogen bromide hydrogen chloride hydrogen fluoride methyl bromide methyl chloride nit
26、rosyl chloride 3.4 Unlisted gases For conditions pertaining to the carriage in containers of any gas not listed in Table 1 or3.3, reference shall be made to the Health and Safety Executive. 4 Information to be supplied by the purchaser and manufacturer 4.1 Information to be supplied by the purchaser
27、 The following information shall be supplied, as appropriate, by the purchaser to the manufacturer and shall be fully documented. Both the definitive requirements specified throughout the standard and the documented items shall be satisfied before a claim of compliance with this standard can be made
28、 and verified. a) name or classification of gas(es); b) service application; c) volumetric capacity (minimum for liquefiable gases); d) for permanent gases, the filling pressure at15C; e) for liquefiable gases, the mass of gas or filling ratio at the prescribed reference temperature or the required
29、developed pressure in service; 1) 1 mbar = 10 2N/m 2= 0.1 kPa.BS5045-6:1987 2 BSI 03-1999 f) material of construction; g) preferred dimensions; h) shape of base; i) internal or external neck screwing dimensions; j) fittings required; k) external/internal finish required; l) any special or adverse co
30、nditions under which the container will be required to operate, and any corrosion allowance required; m) any requirements in addition to those specified in this Part of BS5045. Table 1 Classification of gases Permanent gases Liquefiable gases (T c70 C) Air a Bromotrifluoromethane (R.13B1) a Allene a
31、 Argon a Carbon dioxide a Ammonia a Boron trifluoride Chlorotrifluoromethane (R.13) a Arsinc a Carbon monoxide a Diborane a Boron trichloride Carbon tetrafluoride (R.14) a 1,1-Difluoroethylene (R.1132a) a Bromochlorodifluoromethane (R12B1) a Coal gas a Ethane a Butadiene a Deuterium a Ethylene a But
32、ane a Fluorine Hexafluoroethane (R.116) a 1-Butene a Helium a Hydrogen chloride 2-Butene a Hydrogen a Nitric oxide a Carbonyl chloride Krypton a Nitrous oxide a Carbonyl sulphide a Methane (natural gas) a Phosphine a Chlorine Neon a Silane a Chlorine trifluoride Nitrogen a Sulphur hexafluoride a 1-C
33、hloro-1,1-difluoroethane (R.142b) a Oxygen a Trifluoromethane (R.23) a 2-Chloro-1,1, 1-trifluoroethane (R.133a) a Town gas (excluding coal gas) a Chlorodifluoromethane (R.22) a Xenon a Chloropentafluoroethane (R.115) a Cyanogen a Cyanogen chloride Cyclopropane a Dichlorodifluoromethane (R.12) a Dich
34、lorofluoromethane (R.21) a 1,2-Dichlorotetrafluoroethane (R.114) a 1,1-Difluoroethane (R.152a) a Dimethylamine a Dimethyl ether a 2,2-Dimethyl propane a Ethylacetylene a Ethylamine ab Ethyl chloride Ethylene oxide Hexafluoropropene a Hydrogen cyanide a Hydrogen fluorideBS5045-6:1987 BSI 03-1999 3 Ta
35、ble 1 Classification of gases Permanent gases Liquefiable gases (T c70 C) Hydrogen selenide a Hydrogen sulphide a Isobutane a Isobutylene a Methyl acetylene a Methylamine b Methyl bromide Methyl chloride 3-Methyl-1-butene a Methyl mercaptan a Monomethylamine Nitrogen dioxide a Nitrogen trioxide a Ni
36、trosyl chloride Octafluorocyclobutane (R.C318) a Perfluoro-2-butene a Perfluoro propane a Propane a Propylene a Sulphur dioxide a Trimethylamine ab Vinyl bromide ac Vinyl chloride ac Vinyl fluoride ac Vinyl methyl ether a Gas mixtures Azeotrope R.500 a(73.8% R.12 and26.2% R.152a) Azeotrope R.502 a(4
37、8.8% R.22 and51.2% R.115) Ethylene oxide 12% andR.1288% NOTE 1T cis the critical temperature. NOTE 2Reference to refrigerants by number designation (e.g.R.12) is in accordance with international agreements (see BS4580). NOTE 3The list is not intended to be comprehensive as other gases may be transpo
38、rted. Any queries on the classification of gases should be addressed to the Health and Safety Executive. NOTE 4Gas mixtures may contain small fractions of other gases, and/or liquid components. The filler should ascertain that these mixtures are compatible with aluminium alloys under all normal cond
39、itions of use. NOTE 5All gases transported in aluminium containers are to be free from reactive halogens. a These gases are permitted to be contained in aluminium alloy gas containers. b Special care is necessary to ensure that these gases are dry to less than20 parts per million by volume of moistu
40、re. c As a mixture component only, up to1% by volume of total container content.BS5045-6:1987 4 BSI 03-1999 4.2 Information to be supplied by the manufacturer The following information shall be documented by the manufacturer and shall be available to the purchaser and the independent inspecting auth
41、ority. Both the definitive requirements specified throughout the standard and the documented items shall be satisfied before a claim of compliance with this standard can be made and verified. a) fully dimensioned sectional drawing of the container including: 1) name or classification of gas(es); 2)
42、volumetric capacity (minimum for liquefiable gases); 3) filling pressure at15C for permanent gas(es), or mass of liquefiable gas(es); 4) material of construction; 5) test pressure; 6) corrosion allowance (if any); b) name of independent inspecting authority; c) fittings to be supplied; d) drawing sh
43、owing layout of cylinder marking (see clause16); e) certificate of test for materials and containers, if requested.BS5045-6:1987 BSI 03-1999 5 Section 2. Permissible materials 5 Materials of construction Containers shall be constructed from any of the following materials: a) steels specified in BS50
44、45-1; b) stabilized, balanced or killed steel in accordance with BS1449-1; c) stabilized, balanced or killed steel in accordance with BS1501-1; d) seamless steel tubes in accordance with BS3059-1, BS3601 and BS3602-1; e) aluminium alloys specified in BS5045-3.BS5045-6:1987 6 BSI 03-1999 Section 3. M
45、anufacture and workmanship 6 Approval of design and construction details Before manufacture is commenced, detailed drawings showing each new design of container together with method of manufacture shall be submitted to the independent inspecting authority for approval. No alteration shall be made to
46、 the design or method of manufacture after approval unless such alteration has received prior agreement of the independent inspecting authority. 7 Permissible processes 7.1 General Containers shall be made only by a process that has been shown to produce containers free from cracks or other flaws th
47、at could adversely affect the safety of the containers. The containers shall be made from one of the following: a) rolled bar or forged billets, pierced hot or cold, followed if necessary by hot or cold drawing; or b) plates, sheet or strip, cupped and hot or cold drawn; or c) extruded, hot rolled o
48、r hot or cold finished seamless tube; or d) cast or extruded billets, extruded either hot or cold, followed if necessary by cold drawing. The ends shall be formed by pressing, forging or spinning. Ends shall not be welded on and metal shall not be added in the process of closing. 7.2 Heat treatment
49、Any heat treatment of the container material shall be chosen such as to develop, in the finished container, uniform values of yield stress Y, tensile strength T and elongation equal to or greater than the minima specified for the material in clause5 and used in the design calculations.BS5045-6:1987 BSI 03-1999 7 Section 4. Design 8 Service conditions for design Where gases are to be conveyed in the UK, it shall be assumed that the most severe conditions of exposure to the climate will cause the contents to reach the developed pressur
