At UL‘s in-house laboratory in Northbrook, Chicago, Illinois, we can test closures according to the American standard. Alternatively at the UL laboratory in Rosenheim, Germany. The test is very similar to the European one, in extreme synthesis, it differs in the application at the end of the test, over 20 minutes, of the hose stream test, which is a full power hydrant jet that follows a certain pattern (a path) for a certain time. The door must not leave open spaces from which it can be glimpsed after the hose stream and the lobs must be engaged at the end of the test.

CLASSIFICATIONS

The available classifications are:

20 minutes without hose stream

20 minutes with hose stream

30 minutes with hose stream

3/4 of an hour with hose stream

1 hour with hose stream

1 and 1/2 hour with hose stream

3 hours with hose stream

4 hours with hose stream

EXPOSED SIDE

Normally, in the case of symmetrical constructions, only the side that is pulled exposed (door that opens towards the furnace) is tested.

If the hose stream fails in a door that has withstood fire for more than 20 minutes, the only possible classification remains 20 minutes without hose stream.

It is an extremely demanding test especially for wooden doors. We have the possibility to combine, in the same test if carried out at the laboratory in Rosenheim, also the test according to the European standard EN 1634-1.

With the UL 10Bstandard no positive pressure is applied (it’s a bit simpler).

With the UL 10Cstandard positive pressure is applied.

The CAN-S/104standard is like UL 10C, but only ports that exceed the Hose Stream are classified.

TESTS FOR CONSTRUCTION COMPONENTS

Inside a door that is ULtested, accessories such as hinges, some types of gaskets and dropdown sealscan also be tested and subsequently “listed”.

Door closers require an additional test (endurance according to UL228), while locks are normally tested inside a metallic hollow door listed for up to 3 hours, so they are hardly suitable for testing in conjunction with the door itself.

HOW TO MAKE VARIANTS OR REPLACE COMPONENTS?

Change hinges, locks, finishes, design. Sometimes this is possible without new tests: you have to present the case to UL engineeringand a Minor Evaluationor a Major Evaluationcould be established, which complements the UL File concerning the port. The difference lies in the cost which is greater whether Minor, Major or new test.

AFTER THE TEST?

If the test is successful, which is regular to us, ULproceeds with the Follow Up Service, FUS, as you can see in the specified section of the site. clicking here.

UL DATABASE

UL listedproducts can be found and searched in the UL database, IQ Prospectorhttps://iq.ulprospector.com/

UL is not the only laboratory that can perform ULtesting, but it is the only one that can include you in the UL IQ Prospector. There are also other bodies that can carry out a test according to the UL standard, they could include you in their own database (e.g. Intertek).

INTERTEK DATABASE

Intertek‘s listed products can be found and searched in the construction products database https://bpdirectory.intertek.com/

UL: ONE STOP SHOP FOR THE WORLD

UL is among the laboratories included in the Middle East Civil Defencelists, with the issue of the CoC – Certificate of Conformityfor the specific country it is possible to market products in those areas. You can learn more in the section dedicated to fire resistance Middle East

UL: WE PARTICIPATE IN STANDARDISATION ACTIVITIES

Eros Chemolli is part of UL’s STP10standardisation group which discusses various ULsafety standards:

UL 9, fire testing of window assemblies
UL 10A, coated fire doors
UL 10B, fire test of doors
UL 10C, positive fire pressure test of doors
UL 10D, fire testing of fire protective curtains
UL 14B, hardware for sliding fire doors
UL 14C, hardware for swing fire doors

We have recently proposed changes to UL10B/C, based on our experience.

THE CHEMOLLI FIRE CONTRIBUTION

When it comes to testing, we provide our experience and our KNOW-HOW.

Having always done this type of activity, as specialists, we offer you complete advice during all the laboratory experimentation phases, from design to documentation of results.

THE METHOD

Listening is the most important phase of our interaction: we want you to develop a product that is the sum of your identity and your needs.

First of all, we’ll try to understand your real needs, the channels and the markets you want to measure yourself on.

Then we will show you how the testing and certification process takes place: we need to deal with you, to fully grasp your point of view. Then, we concert a proposal that respects – compatibly with the required performances – your product lines, your production lines and, as far as possible, the potential economies of scale by using products and methodologies already consolidated in your company.

EMPATHY

Beyond the opportunities, which we will show you, we will then advise you what we would do, in your shoes.

We advise with our experience on what, how and where to test. In which laboratory should you test? In the one that best suits your needs!

THE PROJECT

Once the key is turned, we prepare a project that is exhaustive of all the details. Which materials and components to use, an important part of our dialogue on which we can best advise you. In addition to this, a cost sheet and a forecast of weights, to allow you to check if your goals will be achieved. Using the best practices in the sector, we are convinced of this.

ATYPICAL CONSULTANTS: WE TAKE CARE OF THE TESTING ACTIVITY

A consultant gives advice, then lets the client put it into practice. We are not like this: we take off tie and put on our work clothes when needed. Once the production of the samples has been launched, we are present during the gluing of the doors, we offer support during processing and hardware installation, we proceed with our technicians to install the samples in the laboratory and we are physically present at the test. We manage the post-test documentation review phase, we illustrate the documentation and remain available for all issues related to results management.

IN DEPTH