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1、BRITISH STANDARD BS 4839-3: 1992 Plastics containers Part 3: Specification for closed head plastics drums over 70 L up to and including 250 L total capacity Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 07:51:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4839-3:1992 This British Standard
2、, having been prepared under the direction of the Packaging and Freight Containers Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 31 January 1992 BSI 10-1999 First published July 1977 Second edition 31 January 1992 The following BSI refe
3、rences relate to the work on this standard: Committee reference PKM/9 Draft for comment 90/46954 DC ISBN 0 580 20158 9 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Packaging and Freight Containers Standards Policy Committee (PKM/-) to
4、 Technical Committee PKM/9, upon which the following bodies were represented: Association of Drum Manufacturers British Plastics Federation British Steel Industry Chemical Industries Association Engineering Equipment and Materials Users Association Health and Safety Executive Metal Packaging Manufac
5、turers Association Ministry of Defence Paintmakers Association of Great Britain Ltd. PIRA International Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 07:51:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4839-3:1992 BSI 10-1999i Cont
6、ents Page Committees responsibleInside front cover Forewordii Section 1. General 1Scope1 2Definitions1 Section 2. Requirements for all types of drum 3Material, design and construction5 4Closures5 Section 3. Additional requirements for drums of 216 L capacity 5Dimensions6 6Closure neck6 7Drainage6 Ap
7、pendix A Information to be supplied and requirements to be agreed7 Appendix B Method of measuring total capacity7 Appendix C Method of test for assessing the drainage efficiency of a drum7 Figure 1 Plastics drum terminology1 Figure 2 Orifice and closure terminology2 Figure 3 Container stacking heigh
8、t4 Table 1 Dimensions and tolerances applicable6 Table 2 Temperature correction factors7 Publication(s) referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 07:51:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4839-3:1992 ii BSI 10-1999 Foreword This Part of BS 4839
9、has been revised under the direction of the Packaging and Freight Containers Standards Policy Committee at the request of the Association of Drum Manufacturers, to refer specifically to closed head plastics drums. It supersedes BS 4839-3:1977 which is withdrawn. The revised standard has been divided
10、 into sections in order to separate requirements applicable to all capacities of drums from those applicable only to drums of 216 L total capacity for which detailed dimensions are specified, together with a drainage requirement. As detailed dimensions and specific drainage requirements are develope
11、d for other capacities, consideration will be given to incorporating these in the relevant section by amendment. In view of the many different products for which plastics drums may be used, an appendix has been included to draw attention to the need to ensure adequate performance and compatibility b
12、etween the drum and the intended contents. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations
13、. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 8, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the ins
14、ide front cover. Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 07:51:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4839-3:1992 BSI 10-19991 Section 1. General 1 Scope This Part of BS 4839 specifies material, design and construction requirements for closed head plastics drums, with total
15、capacities over 70 L up to and including 250 L, having an internal neck diameter not exceeding 70 mm. Detailed dimensions and a drainage requirement are specified for drums of 216 L total capacity. NOTE 1Information to be supplied by the purchaser and requirements to be agreed between supplier and p
16、urchaser are given in Appendix A. NOTE 2The title of the publication referred to in this standard is given on the inside back cover. 2 Definitions For the purposes of this Part of BS 4839 the following definitions apply. 2.1 plastics a group of synthetic resins or other substances that can be moulde
17、d into a drum 2.2 mould part line a line on the drum corresponding to a parting joint of a mould 2.3 brimful capacity the volume of water held by the drum when filled through the designed filling orifice to the point of overflowing while standing on a level surface (see Figure 1) 2.4 total capacity
18、the volume of water held by the drum when filled completely, i.e. following the removal of any air which would normally be trapped in any raised part of the drum head 2.5 orifice neck face: bung housing face the uppermost surface of the orifice neck or bung housing (see Figure 2) 2.6 drum height to
19、orifice neck face or bung housing face the height from the base of the drum to the highest point of the neck face or bung housing face of the empty drum (see Figure 1 and Figure 2) Figure 1 Plastics drum terminology Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 07:51:00 GMT+00:00 2006, Unco
20、ntrolled Copy, (c) BSI BS 4839-3:1992 2 BSI 10-1999 Figure 2 Orifice and closure terminology Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 07:51:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4839-3:1992 BSI 10-19993 2.7 closure a device which closes an opening in a drum 2.8 overall heigh
21、t the height of the finished empty drum, from the base to the highest point (see Figure 1) 2.9 effective height in stack the height of an empty drum from its base to the base of a similar drum immediately above in a stack (see Figure 3) 2.10 overall diameter or width the maximum dimensions of the dr
22、um diameter or width (where relevant) (see Figure 1) 2.11 neck height the perpendicular distance from the highest point of the plane including the neck face to the nearest point of the finished drum shoulder, passing through the outermost diameter point excluding flash (in the case of plain cylindri
23、cal and internally threaded necks) or the outermost edge of the thread (in the case of screw threaded necks) (See Figure 1 and Figure 2.) NOTEA feature below the thread of greater diameter than the thread is considered as part of the shoulder of the drum. 2.12 internal neck diameter the minimum inte
24、rnal diameter of the neck whether it be parallel, tapered or internally threaded 2.13 external neck diameter the maximum diameter of the neck, measured as the mean of two perpendicular diameters avoiding the mould part line at the neck face 2.14 thread diameter the diameter of the neck thread measur
25、ed as the mean of two perpendicular diameters avoiding the mould part line Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 07:51:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4839-3:1992 4 BSI 10-1999 Figure 3 Container stacking height Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01
26、 07:51:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4839-3:1992 BSI 10-19995 Section 2. Requirements for all types of drum 3 Material, design and construction 3.1 Material The drum shall be manufactured from a plastics material (see 2.1). 3.2 Design Provision shall be made in the moulding for a
27、means of lifting mechanically. 3.3 Construction The drum shall be formed by moulding, e.g. blow moulding or extrusion moulding. Where an end or part is moulded separately, it shall be joined to the body by welding or other suitable methods. 3.4 Mass of the drum The mass of the empty drum (without cl
28、osure) shall be within 3 % of the mass specified in the enquiry or order (see Appendix A). 3.5 Total capacity The total capacity of the drum (in L) shall be determined in accordance with the procedure given in Appendix B. The measurement of capacity shall not be carried out within 48 h of manufactur
29、e. 4 Closures The closure (including a gasket if appropriate) shall be of a material as resistant to the product as the drum itself and shall correspond to the type and form of the drum so as to ensure a secure and leak-proof fit. Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 07:51:00 GMT+0
30、0:00 2006, Uncontrolled Copy, (c) BSI BS 4839-3:1992 6 BSI 10-1999 Section 3. Additional requirements for drums of 216 L capacity 5 Dimensions The dimensions of the drum and the applicable tolerances shall be as given in Table 1. Measurements shall not be made within 48 h of manufacture. Table 1 Dim
31、ensions and tolerances applicable 6 Closure neck The drum shall be fitted with a 50 mm (nominal) buttress neck with a single start thread. 7 Drainage When tested in accordance with Appendix C the volume of the residual water shall be less than 50 mL. 216 L total capacitya DimensionsToleranceb mm Ove
32、rall height928 1 % Drum height to orifice neck face 924 1 % Overall diameter578 1 % Minimum internal neck diameter 52.0 External neck diameter 68.5 or 73 1.5 mm Neck height12 or 24 1.0 mm Pitch of thread4 a The minimum total capacity of 216 L is based on a container of 8 kg mass. b The tolerances on
33、 dimensions relate to finished empty drums. Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 07:51:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4839-3:1992 BSI 10-19997 Appendix A Information to be supplied and requirements to be agreed A.1 Information to be supplied by the purchaser The f
34、ollowing information should be provided by the purchaser when making an enquiry or placing an order: a) brimful capacity and total capacity; b) internal and external finishes; c) type of closures; d) closures centre distance (when applicable); e) performance requirements; f) intended contents. A.2 R
35、equirements to be agreed between supplier and purchaser The following should be agreed between the supplier and the purchaser: a) minimum wall thickness; b) mass of the empty drum without closure(s); c) for threaded closures, the torque required to secure the closure. In addition for the specific ca
36、pacity of drum referred to in section 3, the angle for drainage (see clause 7) should be agreed. Appendix B Method of measuring total capacity B.1 General This method of measuring total capacity follows the principles set out in BS 6966-2. B.2 Procedure Weigh the empty drum, including all closures,
37、to an accuracy of 1 % and record its mass, m1 (in kg). Fill the drum completely with water (with a hole in the highest point to ensure that no air is left in the drum), ensuring that the closures are in the correct position. Remove excess water from the top of the drum and check the water temperatur
38、e. Weigh the filled drum to an accuracy of 250 g and record its mass, m2(in kg). B.3 Calculation Calculate the total capacity (in L) as the difference between the weighings (m2 m1, in kg), multiplied by the water temperature correction factor given in Table 2. Table 2 Temperature correction factors
39、Appendix C Method of test for assessing the drainage efficiency of a drum C.1 Procedure Cut the drum in half horizontally. Retain the top half and fit the appropriate closure(s). Weigh the top half with closure(s) fitted to an accuracy of 1 g and record its mass, m3 (in g). Position the drum half, t
40、op down, on a test rig so that it is held at the angle(s) specified by the manufacturer and pour into it 10 L of water at a temperature of 15 5 C. Wait until the water surface has settled and open the closure. Allow the water to drain for 5 min without moving or shaking the drum half and refit the c
41、losure. Re-weigh the drum half, still in the top down position, to an accuracy of 1 g and record its mass, m4 (in g). C.2 Calculation Calculate the volume of residual water (in mL) as the difference between the weighings (m4 m3, in g). NOTEA new drum is required for each test. Water temperatureCorre
42、ction factor F C 121.000 5 14 1.000 8 16 1.001 1 181.001 4 201.001 8 221.002 2 241.002 7 261.003 3 281.003 8 301.004 4 Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 07:51:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 8 blank Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 07:51:00 GM
43、T+00:00 2006, Uncontrolled Copy, (c) BSI BS 4839-3:1992 BSI 10-1999 Publication(s) referred to BS 6966, Light gauge metal containers. BS 6966-2, Glossary of terms for general use containers and methods for determination of dimensions and capacities. Licensed Copy: sheffieldun sheffieldun, na, Fri De
44、c 01 07:51:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 4839-3: 1992 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the internationa
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