AS NZS 4766-2006 Polyethylene storage tanks for water and chemicals《水和化学制剂用聚乙烯储存罐》.pdf
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1、 AS/NZS 4766:2006 Australian/New Zealand Standard Polyethylene storage tanks for water and chemicals AS/NZS 4766:2006Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 23 Aug 2007AS/NZS 4766:2006 This Joint Australian/New Zealand Standard was prepared by Joint Technical Committee PL-04
2、6, Polyethylene Storage Tanks. It was approved on behalf of the Council of Standards Australia on 7 June 2006 and on behalf of the Council of Standards New Zealand on 16 June 2006. This Standard was published on 6 July 2006. The following are represented on Committee PL-046: Association of Rotationa
3、l Moulders (Australasia) Australian Industry Group Institute of Materials Engineering Australasia Water Services Association of Australia Keeping Standards up-to-date Standards are living documents which reflect progress in science, technology and systems. To maintain their currency, all Standards a
4、re periodically reviewed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments which may have been published since the Standar
5、d was purchased. Detailed information about joint Australian/New Zealand Standards can be found by visiting the Standards Web Shop at .au or Standards New Zealand web site at www.standards.co.nz and looking up the relevant Standard in the on-line catalogue. Alternatively, both organizations publish
6、an annual printed Catalogue with full details of all current Standards. For more frequent listings or notification of revisions, amendments and withdrawals, Standards Australia and Standards New Zealand offer a number of update options. For information about these services, users should contact thei
7、r respective national Standards organization. We also welcome suggestions for improvement in our Standards, and especially encourage readers to notify us immediately of any apparent inaccuracies or ambiguities. Please address your comments to the Chief Executive of either Standards Australia or Stan
8、dards New Zealand at the address shown on the back cover. Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 23 Aug 2007AS/NZS 4766:2006 Australian/New Zealand StandardPolyethylene storage tanks for water and chemicals Originated as AS/NZS 4766(Int):2002. Revised and redesignated as AS
9、/NZS 4766:2006. COPYRIGHT Standards Australia/Standards New Zealand All rights are reserved. No part of this work may be reproduced or copied in any form or byany means, electronic or mechanical, including photocopying, without the writtenpermission of the publisher. Jointly published by Standards A
10、ustralia, GPO Box 476, Sydney, NSW 2001 and StandardsNew Zealand, Private Bag 2439, Wellington 6020 ISBN 0 7337 7606 X Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 23 Aug 2007AS/NZS 4766:2006 2 PREFACE This Standard was prepared by the Joint Standards Australia/Standards New Zeal
11、and Committee PL-046, Polyethylene Storage Tanks. The design of a tank, its fittings and accessories should consider long-term fitness for purpose including service environment and decrease in physical properties of the material due to environmental effects. The terms normative and informative have
12、been used in this Standard to define the application of the Appendix to which they apply. A normative appendix is an integral part of a Standard, whereas an informative appendix is only for information and guidance. Statements expressed in mandatory terms in Notes to Tables and Figures are deemed to
13、 be requirements of this Standard. Notes to text are for information and guidance only. Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 23 Aug 20073 AS/NZS 4766:2006 CONTENTS Page 1 SCOPE AND LIMITATIONS 4 2 OBJECTIVE . 4 3 REFERENCED DOCUMENTS 5 4 DEFINITIONS 6 5 MATERIALS 6 6 DESI
14、GN 9 7 DIMENSIONS AND TOLERANCES 11 8 TANK CAPACITY. 11 9 FITTINGS. 11 10 ROTATIONAL MOULDING PROCESS EVALUATION. 12 11 WORKMANSHIP. 12 12 HANDLING, STORAGE AND PACKING 12 13 INSTALLATION 13 14 MARKING REQUIREMENTS 13 APPENDICES A MEANS OF DEMONSTRATING COMPLIANCE WITH THIS STANDARD 14 B THERMAL STA
15、BILITY TEST 19 C LIGHT TRANSMISSION TEST. 20 D LOW TEMPERATURE IMPACT TEST. 24 Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 23 Aug 2007AS/NZS 4766:2006 4 COPYRIGHT STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND Australian/New Zealand Standard Polyethylene storage tanks for water and c
16、hemicals 1 SCOPE AND LIMITATIONS 1.1 Scope This Standard specifies requirements for the design and manufacture of polyethylene storage tanks that are rotationally moulded in one-piece seamless construction. The tanks are for non-buried, vertical installation and capable of containing water, liquids
17、used in food and beverage manufacture and chemical solutions at atmospheric pressure. Separation of the roof (lid) from the body of the tank, after moulding, is permitted for transport purposes, provided that (a) the structural integrity of the tank is not adversely affected after the roof has been
18、refitted by the manufacturer or its nominated representative in the manner prescribed by the design engineer; and (b) the prevention of insect and/or vermin ingress is maintained. Methods for demonstrating compliance with this standard are given in Appendix A. 1.2 Limitations This Standard does not
19、provide design criteria for (a) liquid contents heated above their flash points; (b) liquid contents with service temperatures above (i) 40C; or (ii) the rated service temperature of the tank material. (c) superimposed pressure exceeding 0.25 m head of water, or 2.5 kPa above the maximum recommended
20、 fill level; and (d) superimposed mechanical forces, such as seismic forces, wind load or agitation. Where criteria in Items (a) to (d) apply, special design consideration shall be given. A tank shall have provision for overflow of contents. The tank material supplier shall be consulted where the an
21、ticipated service temperature of the liquid stored within the tank exceeds 40C. Tank design analysis and independent verification shall be performed by qualified professional engineer(s) as defined in Clause 4.3. Material data used as a basis for the design may include hydrostatic design stress data
22、 and/or creep and creep rupture data. This Standard does not apply to portable tanks for the transport of liquids. 2 OBJECTIVE The objective of this Standard is to (a) ensure secure storage of water and other liquids or chemicals (see Clause 1.1); (b) ensure performance and workmanship of the finish
23、ed tank is adequate for the intended application; Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 23 Aug 20075 AS/NZS 4766:2006 COPYRIGHT (c) ensure fittings are suitable for the intended application; and (d) specify design criteria and material selection to ensure the above. 3 REFE
24、RENCED DOCUMENTS The following documents are referred to in this Standard: AS 1145 Determination of tensile properties of plastics materials 1145.1 Part 1: General principles 1145.2 Part 2: Test conditions for moulding and extrusion plastics 1145.3 Part 3: Test conditions for films and sheets 1145.4
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