12.07.2015 Views

GEPVP CPD 4 (EN12150-2).EN.indd - Glass for Europe

GEPVP CPD 4 (EN12150-2).EN.indd - Glass for Europe

GEPVP CPD 4 (EN12150-2).EN.indd - Glass for Europe

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Evaluation of con<strong>for</strong>mity of“Thermally toughened soda lime silicate safety glass” to hE N 12150-2B.1.2Optical surface pre-stress measurementB.1.2.1If the optical surface pre-stress measurement isa part of the factory production control then thevalues obtain during factory production controlmay not be less than the reference valuesobtained during the initial type test (see 5.2.2).Additionally <strong>for</strong> these test specimens thefragmentation should be in accordance with therequirements of <strong>EN</strong> 12150-1.Measurement methodPre-stress measurements should con<strong>for</strong>m to therecommendation of the test equipment supplier.See specifically Clause 5.2.2.4See B.2.The pre-stress measurements should have placeon five points as indicated in figure B.1B.2 Fragmentation testB.2.1B.2.2RequirementsFor the requirements, refer to <strong>EN</strong> 12150-1.Test methodFragmentation tests should be per<strong>for</strong>med inaccordance with <strong>EN</strong> 12150-1.<strong>EN</strong> 12150-1 defines the fragmentation ofthermally toughened soda lime silicate safetyglass products in Clauses 8.5 and 8.7<strong>EN</strong> 12150-1 details the fragmentation test <strong>for</strong>thermally toughened soda lime silicate safetyglass products in Clauses 8.1 to 8.4.19Figure B.1100±10Dimensions in mm

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