EN 12246-1999 en Quality Classification of Timber Used in Pallets and Packaging《平板架和包装用木材的质量分级》.pdf

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1、BRITISH STANDARD Quality classification of timber used in pallets and packaging The European Standard EN 122461999 has the status of a British Standard ICs 55.160 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW L2246:1999 STD-BSI BS EN LZZLib-ENGL 1999 .PI LbZ4bb7 0779432 727

2、E BS EN 12246:1999 been prepared under the direction of the Sector Amd.No. Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 October 1999 O BSI 10-1999 ISBN O 680 32672 1 National foreword Date Comments This British

3、 Standard is the English language version of EN 122461999. The UK participation in its preparation was entrusted by Technical Committee B/543, Round and sawn timber, to Subcommitte B/543/3, Timber in pallets and packaging, which has the responsibility to: - aid enquirers to understand the text; - pr

4、esent to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed - monitor related intemational and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtaine

5、d on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Struidards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” fac

6、ity of the BSI Standards Electronic Catalogue. A British Standard does not purport to include ali 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 obligat

7、ions. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 5 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12246 June 1999

8、 ICs 55.040; 55.180.20; 79.040 English version Quality classification of timber used in pallets and packaging Classes de qualit du bois utilis dans les palettes et les emballages Paletten und Packmitteln Qualitts-sortiemg von Holz zur Verwendung in This European Standard was approved by CEN on 2 May

9、 1999. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliopphical references concerning such national standards may be obtained

10、on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretari

11、at has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN Europe

12、an Committee for Standardization Comit Europen de Normalisation Europisches Komitee ir Normung Central Secretariat: rue de Stassart, 36 B- 1050 Brussels O 1999 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12246: 1999 E STD-BSI B

13、S EN L224b-ENGL 1997 S lb24bb7 0777934 7rT = Page 2 EN 12246:1999 Contents Foreword Introduction 1 Scope 2 Normative references 3 Definitions 4 Timber classes Annex A (informative) Bibliography Page Foreword This European Standard has been prepared by Technical Committee CEN/TC 175, Round and sawn t

14、imber, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 1999, and conflicting national standards shall be withdrawn at the latest by December 199

15、9. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, P

16、ortugal, Spain, Sweden, Switzerland and the United Kingdom. O BSI 10-1999 STD.BS1 BS EN L224b-ENGL 1774 lb24bb 0799435 b3b Page 3 EN 12246:1999 Introduction Pallets and packaging, of whatever material, fulfil some functional requirements. These requirements can be verified either through tests or th

17、rough appropriate means. For pallets and packaging, the characteristics linked with the use of the timber are checked either through functional verifications or through more traditional systems such as strength grading of stnictural timber or appearance grading of sawn timber. The classes in this st

18、andard are based on the latter system. It will be possible to improve the grading of timber through new systems. This standard should be used as a reference document in product standards or contracts to specie the class of timber used in the product. All the criteria are the results of long experien

19、ce in pallets and packaging. 1 Scope This standard defines quality classes of timber used in industrial packaging and reusable pallets. Two classes P 1 and P2 are defmed with minimum requirements based on visual classification. 2 Normative references This European Standard incorporates by dated or u

20、ndated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only wh

21、en incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 844-1, Round and sawn timber - Terminology -Part 1: General terms common to round timber and sawn timber. EN 844-3, Round and sawn timber - Terminology - Part 3: Gener

22、al terms relating to sawn timber. EN 844-4, Round and sawn timber - Terminology - Part 4: Terms relating to moisture content. EN 844-6, Round and sawn timber - Terminology - Part 6: Terms relating to dimensions of sawn timber. EN 844-7, Round and sawn timber - Terminology- Part 7: Terms relating to

23、anatomical structure of timber. EN 844-9, Round and sawn timber - Terminology - Part 9: Terms relating to features of sawn timber. EN 844-10, Round and sawn timber - Terminology - Part 10: Terms relating to stain and fungal attack. EN 844-1 1, Round and sawn timber - Terminology- Part 11: Terms rela

24、ting to degrade by insects. EN 1309-1, Round and sawn timber-Method of measurement of dimensions - Part 1: Sawn timber. EN 13 10: 1997, Round and sawn timber - Method of measurement of features. EN 13 1 1, Round and sawn timber - Method of measurement of biological degrade. 3 Definitions For the pur

25、poses of this European Standard, the definitions given in EN 844- 1, EN 844-3, EN 844-4, EN 844-6, EN 844-7, EN 844-9, EN 844-10 and EN 844-1 1 apply. 4 Timber classes Two classes P 1 and P2 (visual classification) are considered to be sufficient for general use in industrial packaging and reusable

26、pallets. The minimum requirements of these classes are shown in Table 1. O BSI 10-1999 STD.BSI BS EN L224b-ENGL 1977 Lb2ibb 079943b 572 Page 4 EN 12246:1999 Dimensions, features and biological attacks are measured according to EN 1309- 1, EN 13 1 O and EN 13 1 1. The choice between P1 and P2 depends

27、 on the requirements in existing product standards or contracts. NOTE I Timber as raw material for pallets and packaging can be chosen in the general classification of grading of sawn timber described in the following standards: EN 975-1 prEN 161 1-1; or can be directly produced in conformity with t

28、he PI or P2 classes of this standard. in both cases, the criteria of acceptance are determined on the basis of prEN 12169. When the timber is in the pallets or packaging and is classified as described in this standard (Pi, PZ), the criteria of acceptance are based on criteria of product standards or

29、 as defined in contracts. O BSI 10-1999 STD-BSI BS EN 1229b-ENGL 1997 II lib29bb7 0779937 907 W Resin pocket Bark pocket Blue stain Bioeterioration except blue stain Active timber infestation Black hole Wane (without bark)” Page 5 EN 12246:1999 Permitted on one face only Not permitted Not permitted

30、Refer to Refer to Not permitted Not permitted Not permitted Not permitted Up to five holes of diameter 13 mm permitted permitted Wane shall be measured according to EN 1310:1997,4.8. Permitted up to 25 % of the piece length, up to 33 % of the thickness and allowed on both sides of one face if 110 mm

31、 from each side. from each side. Permitted on one face only Up to five holes of diameter 13 mm Permitted up to 30 % of the piece length, up to 50 % of the thickness and allowed on both sides of one face if 120 mm ) Except at point of nailing (refer to the relevant product standards). *) Mechanical p

32、roperties are not affected by blue stain. Stain can be avoided by kiln drying or other means. 3, If wane is to be excluded, it may be specified in product standards or contracts. NOTE 2 The moisture content can be of importance in the use of pallets and packaging and requirements may be specified in

33、 product standards or contracts. NOTE 3 Below a moisture content of 20 %, there is a very minimal risk that biodeterioration may occur. Annex A (informative) Bibliography EN 975-1, Sawn timber - Appearance grading of hardwoods -Part 1: Oak and beech. prEN 16 1 1 - 1, Sawn timber -Appearance grading

34、of sofnuood - Part I: European spruces, firs, pines and Douglas firs. prEN 12169, Criteria for the assessment of conformity of a lot of sawn timber. QBS1 10-1999 STD-BSI BS EN 12246-ENGL 1797 1b24bb7 0777438 395 BS EN 12246:1999 BSI 389 Chiswick High Road London w4 4AIA BSI - British Standards Insti

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