“TECNALIA is a notified body for glass testing and an ENAC accredited laboratory.”
Standard EN 356 sets out the requirements, test methods and different resistance classifications that a glass composition can obtain
This type of glass building solution is designed to slow down the intrusion of objects and/or people as a result of a manual attack exerted on the glass in a short period of time.
Standard EN 356 sets out the requirements, test methods and different resistance classifications that a laminated glass composition can obtain against manual attack. Standard EN 356 establishes two classification groups: A and B, for which a different test method has been determined.
Group A classification
Group A classification, with a total of five possible classifications (P1A, P2A, P3A, P4A or P5A), is obtained by testing the vertical drop of a 4.11 kg steel ball on three points of the glass. A vertex is formed and the drop height and number of impacts varies depending on the target classification. The requirement in all cases is that the ball does not pass through the glass.
Group B classification
Group B classification, with three possible classifications (P6B, P7B or P8B), is obtained by testing consecutive impacts using a hammer. First the glass is broken. It is then cut using an axe, until an opening of 400x400 mm is obtained. The sum of all the impacts applied in order to achieve this opening results in the resistance classification.
Although a different test method is applied for Group A and Group B, the resistance classifications may be understood as consecutive. However, it must be pointed out that EN 356 does not associate classifications with a particular application or use.
TECNALIA is a notified body for testing glass products under System 3 of the CE marking and a laboratory accredited by ENAC
Resistance to theft as a result of a manual attack is a feature of safety glass that is evaluated by an initial test that must be carried out by a Notified Body for CE marking.
