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

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Construction Products DirectiveAttachment 1: hEN Clause 4 RequirementsClause No. Content Explanation4.1 Product description10For conformity purposes the thermallytoughened soda lime silicate glassmanufacturer is responsible for thepreparation and maintenance of the productdescription. This description shall describe theproduct and/or product families.Disclosure of the product description shall beat the discretion of the thermally toughenedglass manufacturer or his agent except in thecase of regulatory requirements.The description shall contain at least anormative part. The description may alsocontain an informative part, when themanufacturer foresees further development ofthe product.The normative part of the description shallcontain the following minimum information:- a reference to EN 12150 Parts 1 and 2and all other standards with which themanufacturer claims compliance.- the radiometric properties and durabilityof coated glass, i.e. coated glass thatconforms with EN 1096-1, EN 1096-2,EN 1096-3, when those properties arechanged, intentionally or unintentionally,by the thermal toughening process.The definition of product families shall beconsistent with the normative part of theproduct description.The substitution of materials shall maintainthe conformity with the product description.The substituting material can be added tothe product family and also the productdescription when compliance has beendemonstrated.4.2 Conformity with the definition of thermallytoughened soda lime silicate safety glassProducts shall conform to the definition andfulfil the requirements of thermally toughenedsoda lime silicate safety glass as defined inEN 12150-1.4.3 Determination of the characteristic’sperformances4.3.1 Characteristics of thermally toughenedsoda lime silicate safety glassThis document details the manufacturer’sproduct offering. It could contain, as far as theproduct is concerned, the following:1. Full range of glass types and thicknessesoffered;2. Details of edgework, holes, etc. whereapplicable;3. Full production control data;a. Pre-processing;b. Processing, heating/cooling/time.4. Full product control data:a. What tests;b. What pass level;c. If proxy testing: relationship to prescribedparameter.5. Special conditions for products, such as fireresistant toughened glass, which requiredifferent systems of attestation of conformity;6. If coated glasses are toughened whatprocedures are used to show that the quotedfigures are applicable.Product families can be:1. Ones that have a claimed characteristicacross a range, e.g. EN 12600 performancefor all toughened patterned glassesdetermined on the poorest performer;2. Ones that have identical processingconditions, e.g. clear glass and tinted glass ofthe same thickness, patterned glasses of thesame thickness.EN 12150-1 defines thermally toughened sodalime silicate safety glass products in Clause 3and their fracture characteristics in Clause 5.Also given is:fragmentation test in Clause 8, thermaldurability in Clause 9.3 and mechanical strengthin Clause 9.4.
Evaluation of conformity of“Thermally toughened soda lime silicate safety glass” to hE N 12150-24.3.1.1 GeneralThe characteristics of thermally toughenedsoda lime silicate safety glass are in generalthose of the glass substrate (see 4.3.1.2).4.3.1.2 Characteristics of the soda lime silicateglass panes used for the production ofthermally toughened soda lime silicatesafety glassCharacteristics, generally, those of the incomingraw material, i.e. basic soda lime silicate glassproduct or coated soda lime silicate glassproduct.Panes shall be made of soda lime silicateglass according to EN 572-1, EN 572-2,EN 572-4, EN 572-5. The panes may becoated according to EN 1096–1, EN 1096-2,EN 1096-3 and/or enamelled according toEN 12150-1.For the characteristics listed in table 1, forthe soda lime silicate glass panes, generallyaccepted values or calculated values may beused.Since the majority of the characteristicsof table 1 are not changed significantly bythe thermal toughening process they shallbe used for thermally toughened soda limesilicate safety glass. The exceptions shall bethe characteristic bending strength (ƒg,k) andthe resistance against sudden temperaturechanges and temperature differentials.The values given for resistance against suddentemperature change and characteristic bendingstrength (f g,k), see 4.3.2.8 and 4.3.2.9, areguaranteed by compliance with this standard.11Table 1: Information on thecharacteristics of soda lime silicate glasspanes, according to EN 572-1, used forthe production of thermally toughenedsoda lime silicate safety glassIf some coatings, i.e. coated glass conformingwith the EN 1096 series, when thermallytoughened change their radiometric propertiesthe manufacturer shall refer to the followingfor the determination of the appropriatecharacteristics, etc.:• 4.3.2.11 for the emissivity;• 4.3.2.12 for the light transmittance andreflectance;• 4.3.2.13 for the solar energytransmittance;• EN 1096-2 for the durability of A, B andS coatings;• EN 1096-3 for the durability of C andD coatings.If such changes occur then it is the responsibilityof the thermally toughened glass manufacturerto determine the values to be quoted.However, the coated glass supplier may beable to give values for the toughened producttogether with appropriate factory productioncontrol tests. Therefore the toughener can quoteapplicable values as well as ensuring that theproduct values are maintained without the needto undertake these determinations.
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