BS ISO BRITISH STANDARD 11093-6:2005 Paper and board - Testing of cores Part 6: Determination of bending strength by the three-point method ICS 85.060 BSi NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLA British Standards BS IS0 11093-6:2005 National foreword This British Standard was published by BSI. It is the UK implementation of ISO 11093-6:2005. It supersedes BS ISO 11093-6:1996 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PAI/11, Methods of test for paper, board and pulps. A list of organizations represented on PAI/11 can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was Amendments issued since publication published under the authority of the Standards Policy and Strategy Committee Amd. No. Date Comments 0n30March2007 CBSI 2007 ISBN9780580504327 BS ISO 11093-6:2005 INTERNATIONAL ISO STANDARD 11093-6 Second edition 2005-05-01 Paper and board Testing of cores - Part 6: Determination of bending strength by the three-point method Papier et carton- Essais des mandrins- Partie 6: Détermination de la résistance a la flexion par la methode des trois points Reference number ISO 11093-6:2005(E) ii BS ISO 11093-6:2005 Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member bodies). The work of preparing International Standards is normally carried out through IsO technical committees. Each member body interested in a subject for which a technical committee has been non-governmental, in liaison with isO, also take part in the work. isO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent revised Iso 11093 consists of the following parts, under the general title Paper and board - Testing of cores: Part 1: Sampling Part 2: Conditioning of test samples Part 3: Determination of moisture content using the oven drying method Part 4: Measurement of dimensions Part 5:Determination of characteristics of concentric rotation Part 6: Determination of bending strength by the three-pointmethod Part 7: Determination of flexural modulus by the three-pointmethod Part 8: Determination of natural frequency and flexural modulus by experimental modal analysis Part 9: Determination of flat crush resistance ili blank BS ISO 11093-6:2005 Paper and board Testing of cores - Part 6: Determination of bending strength by the three-point method 1 Scope This part of IsO 11093 specifies a three-point method for the determination of the bending strength of cylindrical board cores which meet the following criteria: internal diameter: 50 mm to 300 mm; minimum wall thickness: 5 mm; minimum test length of core (span): 1 100 mm. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO7500-1,Metallic materials — Verificationof static uniaxial testingmachines Part1: Tension/compression testing machines - Verification and calibration of the force-measuring system ISO 11093-1, Paper and board—Testing of cores—Part 1: Sampling 3 Terms and definitions For the purposes of this document, the following terms