This large family of legislation gives guidance on how products can (or cannot) be modified after testing beyond the scope stated in the test standard.

DIRECT SCOPE OF APPLICATION

Some modifications allowed to the manufacturer automatically, are those included in DIRAP, the field of direct application of results included in the test standard, and normally included in product classification reports. For example, the reduction (or possible increase) of measurements, the increase of thicknesses, the possibility of changing from a flexible substrate (plasterboard) to a rigid one (masonry). All these variations, listed, only give an idea, and may be linked to specific parameters related to the component materials rather than to the results of the test itself. For example, a wooden door tested on masonry can be installed on plasterboard and vice versa, a metal door needs two separate tests, and so on. However, these changes do not affect construction components, such as locks, hinges and more.

But how can a door manufacturer change locks or change hinges?

Of course, it must another test to be taken. But the test is time-consuming and costly, and it must be considered that doors can have many required variants. The legislator has therefore introduced some very important tools to manage the possibility of variants without re-testing. In the European standards, there is the EN15269 family of standards that deals with the extended application of test results for fire-resistant and smoke-proof doors.

NORMS

The main standards are:

EN 15269-1 general requirements;

EN 15269-2 steel doors;

EN 15269-3 wooden doors;

EN 15269-7 sliding doors;

EN 15269-20 smoke-tight doors.

The standards prEN17020-1, prEN17020-2, prEN17020-3, prEN17020-4 are under study regarding the features of durability.

The EN15269  contains, diversified in terms of areas (fire and smoke), materials (wood or metal) and types (sliding or hinged) a series of rules that allow for modifications compared to the tested sample.

THE PROCEDURE  

Generally, a door manufacturer for a change in material or geometry proposes the change to the testing laboratory that attests the door, possibly accompanying the request with additional test evidence requested by EXAP itself. In the case of more than one test report, in accredited laboratories, it is the manufacturer’s option to choose indifferently one of the test laboratories that issued the reports that will be used as supporting evidence in the EXAP to study and issue the extension and consequently draw up the extended classification report, as specified in 5.3.1 of EN15725.

This allows modifications for products that also include the interchangeability of construction components in the area of fire and smoke protection doors.

HPS  

In the drafting of EXAPs, the HPS – Hardware Performance Sheet, drafted according to EN16035, can be very useful. It can be useful precisely to give the laboratory,that will make the EXAP, the possibility to choose only the test evidence that is useful for that specific job. The HPS is a tool reserved for construction components, what we commonly call accessories, such as hinges, locks, door closers, etc..

At CHEMOLLI FIRE, we have assisted several customers in requesting rather complex EXAPs, probably otherwise impossible, thanks to the following factors

  • familiarity with the subject matter;
  • an extensive database of previous evidence in which to identify useful evidence;
  • within this, some 30 pieces of evidence under our contribution from which to obtain;
  • a network of contacts with which to attempt to obtain permission to use such these evidences.