PAS 24 describes a series of test methods and a range of criteria relevant to the general performance of turning, tilting, folding, turn-tilt, top and bottom hung, sliding (horizontally and vertically) and fixed window assemblies for dwellings and other buildings exposed to comparable risk.
PAS 24 does not cover the windows’ resistance to attempts at forced entry involving creation of significant noise, such as attempts involving deliberately breaking glass panels. Furthermore, the standard does not cover the products’ installation.
EN 1627 is the European standard for burglary resistance of pedestrian doorsets, windows, curtain walling, grilles and shutters. It specifies six levels of attack resistance (resistance classes). The lower three resistance classes are aimed at situations where the intruder is likely to use stealth in order to avoid detection. Products approved to those resistance classes may therefore not suit environments in which it is considered the intruder will be willing to make noise when attempting to gain entry.
The quality of the testing conducted to EN 1627 relies heavily on the knowledge and experience of the test engineers conducting that testing. Therefore, in order to ensure products approved by LPCB deliver the protection expected, LPCB only recognises tests conducted to EN 1627 by BRE Global’s highly experienced team of test engineers or by other laboratories that have suitably demonstrated their competence to conduct tests to EN 1627 to an equally high standard.
Details of windows approved to LPS 1175 can be found under 'High security windows, curtain walling systems and rooflights'.
LPCB has also published a standard for glazing and security glazing films which employs the principles contained within LPS 1175. That standard is LPS 1270 Requirements and testing procedures for the LPCB approval and listing of intruder resistant security glazing units covers the resistance to manual attack of the glazing material. It enables specifiers to select new or replacement glazing that affords two levels of security equivalent to that of the frame or façade in which it is to be employed. Glazing approved to LPS 1270 is listed under 'Security glazing'.