Paper and board. Testing of cores - Determination of characteristics of concentric rotationBS ISO 11093 5: 2009 Paper and board. Testing of cores. Determination of characteristics of concentric rotation BS ISO 11093 5 specifies a method for determining the characteristics of concentric rotation of cylindrical board cores which meet the following criteria: Minimum wall thickness: 5 mm Minimum external diameter: 60 mm Maximum sample length: 3 200 mm. Contents of BS ISO 11093 5: Scope Normative references Principles Apparatus Preparation of

Part 1: Reference model

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Measurements of cell damage

the drafting of working papers

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screw and nut or scissors mechanisms

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breathing and draining devices which form part of a flameproof enclosure

Preparation of material for direct-contact tests

The United Kingdon Accreditation Service (UKAS) operate an accreditation scheme to ISO Guide 34

4 Environmental conditions