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AS/NZS 4499.3:1997 Protective Headgear for Cricket

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AS/NZS 4499.3:1997 Protective Headgear for Cricket AS/NZS 4499.3:1997 Australian/New Zealand Standard Protective headgear for cricket Part 3: Faceguards This is a free 6 page sample. Access the full version online. AS/NZS 4499.3:1997 This Joint Australian/New Zealand Standard was prepared by Joint Technical Committee CS/95, Helmets for Ball Games. It was approved on behalf of the Council of Standards Australia on 30 September 1997 and on behalf of the Council of Standards New Zealand on 1 September 1997. It was published on 5 December 1997. The following interests are represented on Committee CS/95: Australian Association of Certification Bodies Australian Baseball Federation Australian Chamber of Commerce and Industry Australian Cricket Board Australian Retailers Association Australian Sports Commission Neurosurgical Society of Australasia New South Wales TAFE Commission New Zealand Sports Assembly New Zealand helmet testing interests Plastics and Chemicals Industries Association Additional interests participating in preparation of Standard: Australian Ice Hockey Federation N.S.W. Cricket Association Royal Prince Alfred Hospital Department of Neurosurgery University of N.S.W. School of Industrial Design Victorian Cricket Association Review of Standards. To keep abreast of progress in industry, Joint Australian/ New Zealand Standards are subject to periodic review and are kept up to date by the issue of amendments or new editions as necessary. It is important therefore that Standards users ensure that they are in possession of the latest edition, and any amendments thereto. Full details of all Joint Standards and related publications will be found in the Standards Australia and Standards New Zealand Catalogue of Publications; this information is supplemented each month by the magazines ‘The Australian Standard’ and ‘Standards New Zealand’, which subscribing members receive, and which give details of new publications, new editions and amendments, and of withdrawn Standards. Suggestions for improvements to Joint Standards, addressed to the head office of either Standards Australia or Standards New Zealand, are welcomed. Notification of any inaccuracy or ambiguity found in a Joint Australian/New Zealand Standard should be made without delay in order that the matter may be investigated and appropriate action taken. This Standard was issued in draft form for comment as DR 96024. This is a free 6 page sample. Access the full version online. AS/NZS 4499.3:1997 Australian/New Zealand Standard Protective headgear for cricket Part 3: Faceguards First published as AS/NZS 4499.3:1997. PUBLISHED JOINTLY BY: STANDARDS AUSTRALIA 1 The Crescent, Homebush NSW 2140 Australia STANDARDS NEW ZEALAND Level 10, Radio New Zealand House, 155 The Terrace, Wellington 6001 New Zealand This is a free 6 page sample. Access the full version online. ISBN 0 7337 1541 9 AS/NZS 4499.3:1997 2 PREFACE This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee CS/95, Helmets for Ball Games. This Standard deals with the requirements for faceguards intended to be used as an accessory to a cricket helmet, the requirements for which are set out in AS/NZS 4499.1, Protective headgear for cricket,Part1:Helmets. The Committee considers a faceguard to be a necessary component for improved head protection, however, the requirements have been dealt with in a separate Standard as faceguards are not usually attached permanently to helmets. Separating the requirements allows the user the choice of different styles of faceguards, or alternatively a temple protector, the requirements for which are set out in AS/NZS 4499.2, Protective headgear for cricket,Part2:Temple protectors . The ability of a faceguard to absorb some of the energy of an impact depends to a great degree on the geometry of the retention system of the helmet. In many cases, the retention system of a helmet has been designed to incorporate a chincup as a pivot point in the retention system, which acts to prevent the faceguard being pushed onto the wearers face. For some other types of helmets, the use of a chincup in place of an underjaw retaining strap could allow the helmet to be dislodged from the wearers head during an accident. Therefore, the use of a chincup is allowed within AS/NZS 4499.1, whereas the use of a chincup is not permitted within some other helmet Standards. In addition to providing protection for the face, the faceguard also provides protection for the temple region of the head which is an area where the skull is weak and contains easily ruptured blood vessels. The 400gn to 500gn initial deceleration figure cited in this Standard, measured using the test procedure and apparatus in AS/NZS 2512.3.2, Methods of testing protective helmets, Method 3.2: Determination of impact energy attenuation—Striker drop test, was selected because it discriminates between products which had been shown on the cricket field to provide adequate protection and products which had not performed well. It does not correlate with, and should not be confused with, similar figures used in other Standards to express expected brain deceleration. For a better understanding of the needs and requirements for head protection for cricketers, this Standard should be read and considered in conjunction with AS/NZS 4499, Parts 1 and 2. The term ‘informative’ has been used in this Standard to define the application of the appendix to which it applies. An ‘informative’ appendix is only for information and guidance. Copyright STANDARDS AUSTRALIA/ STANDARDS NEW ZEALAND Users of Standards are reminded that copyright subsists in all Standards Australia and Standards New Zealand publications and software. Except where the Copyright Act allows and except where provided for below no publications or software produced by Standards Australia or Standards New Zealand may be reproduced, stored in a retrieval system in any form or transmitted by any means without prior permission in writing from Standards Australia or Standards New Zealand. Permission may be conditional on an appropriate royalty payment. Australian requests for permission and information on commercial software royalties should be directed to the head office of Standards Australia. New Zealand requests should be directed to Standards New Zealand. Up to 10 percent of the technical content pages of a Standard may be copied for use exclusively in-house by purchasers of the Standard without payment of a royalty or advice to Standards Australia or Standards New Zealand. Inclusion of copyright material in computer software programs is also permitted without royalty payment provided such programs are used exclusively in-house by the creators of the programs. Care should be taken to ensure that material used is from the current edition of the Standard and that it is updated whenever the Standard is amended or revised. The number and date of the Standard should therefore be clearly identified. The use of material in print form or in computer software programs to be used commercially, with or without payment, or in commercial contracts is subject to the payment of a royalty. This policy may be varied by Standards Australia or Standards New Zealand at any time. This is a free 6 page sample. Access the full version online. 3 AS/NZS 4499.3:1997 CONTENTS Page 1 SCOPE.................................................... 4 2 OBJECTIVE................................................ 4 3 REFERENCEDDOCUMENTS................................... 4 4 DEFINITIONS............................................... 4 5 CONSTRUCTION............................................ 4 6 TESTING.................................................. 5 7 MARKING................................................. 7 8 INSTRUCTIONSFORUSEANDCARE............................ 7 APPENDIX A CHARACTERISTICS OF MATERIALS USED IN THE MANUFACTUREOFFACEGUARDS...................... 9 This is a free 6 page sample. Access the full version online. AS/NZS 4499.3:1997 4 STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND Australian/New Zealand Standard Protective headgear for cricket Part 3: Faceguards 1SCOPEThis Standard specifies requirements for faceguards to be attached to cricket helmets to mitigate the effects of a blow to the face by a cricket ball. The Standard includes construction, testing and labelling requirements. Faceguards complying with this Standard are not intended to protect wearers against a severe blow from a cricket bat. NOTES: 1 Requirements for cricket helmets are given in AS/NZS 4499.1. 2 Requirements for temple protectors for use with cricket helmets are given in AS/NZS 4499.2. 2 OBJECTIVE The objective of this Standard is to provide cricketers with faceguards that when attached to a cricket helmet provide protection against, and minimize the severity of, facial injury resulting from cricket ball impacts. 3 REFERENCED DOCUMENTS The following documents are referred to in this Standard: AS 2512 Methods of testing protective helmets 2512.2 Method 2: General requirements for the conditioning and preparation of test specimens and laboratory conditions AS/NZS 2512 Methods of testing protective helmets 2512.1 Method 1: Definitions and headforms 2512.3.2 Method 3.2: Determination of impact energy attenuation—Striker drop test 4499 Protective headgear for cricket 4499.1 Part 1: Helmets 4499.2 Part 2: Temple protectors BS 5993 Specification for cricket balls 4 DEFINITIONS For the purpose of this Standard, the definitions given in AS/NZS 2512.1 and AS/NZS 4499.1 apply. 5 CONSTRUCTION 5.1 General Thefaceguardshallbedesignedsothat— (a) it can be firmly
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