Modification to the European Standard for Thermally Toughened Safety Glass in Buildings

The European standard EN 12150-1:2000 Glass in buildings – Thermally toughened soda lime silicate safety glass – Definition and description, has been revised and superseded by EN 12150-1:2015.

Revision made to European standard for thermally toughened glass in buildings

The main changes to the revised standard are:

1) Some figures have been revised and some new figures have been added to the standard.

2) New terms and definitions have been included in clause 3; Air cushion process – clause 3.6, edge lift – clause 3.9 and roller wave distortion – clause 3.13.

3) Additional nominal thicknesses have been included in Table 1; Nominal thicknesses and thickness tolerances.

4) Subclause 6.2.3 ‘Tolerances and squareness’ has been completely revised; the squareness of rectangular glass panes is now expressed by the difference between its diagonals.

5) Clause 6 (Dimensions and tolerances) and clause 7 (Edge and\or surface work, holes, notches and cut outs) have been completely revised; including the air cushion manufacturing process.

6) The normative annex ‘Determination of U value’ has been deleted.

7) A new informative annex dealing with an alternative method for the measurement of roller wave distortion has been added.

Conflicting national standards shall be withdrawn at the latest by March 2016.

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