The Testing pole provides you with a complete set of fire testing methods; to characterize the reaction to fire of you materials and assemblies.
We have set up different levels of offers to fit with you request of fair price, lead time and quality. Feel free to contact us for any demand. We follow the fire test evolution via the French mirror group linked to TC 127 – building and TC256 - railways
The development of CREPIM continues in the context of fire resistance, with the extension of our COFRAC accreditation to the tests EN 1363-1, EN 1634-1 and EN 1634-2. These applied to the rail reference system (EN 45545-3) and maritime (FTP code 2010 part 3 and part 4).
We can also perform all types of non-accredited tests related to standards for partitions and walls (EN 1364-1), ceilings (EN 1364-2) and doors (EN 1634-1), as well as other standards.
The Certification pole features skilled teams devoted to 3rd part certification
Our service is completely integrated, with a sole contact point, which makes the procedure easy to handle form your side.
The Development pole – it is our original activity – to support you in the development of FR formulas:
Focus on FR resins development, Thermoplastic or thermoset, mainly based on all technologies, featuring intumescence
The Training pole to upgrade you skill regarding
More than 20 training sessions focused on fire: feel free to tease us for any request and become fire expert
CREPIM is the major European Laboratories for development and approval of materials covered by fire regulations. CREPIM develops, guaranties and qualifies the fire performances of materials and assemblies for all concerned areas, featuring the mass transportation sectors (railway, aviation and maritime), as well as in the construction, electric products, and textile sectors. All these studies take into account the end of life management of the product in order to be in line with the potential “second life” of the material and with its impact on the environment.
Our organisation features four divisions: (i) Development, (ii) Testing division, (iii) Certification division and (iv) Training division. The whole team includes 20 people featuring, for a large part, chemists, (MSc, doctors and senior scientists).
Feel free to challenge us for any needs !!!
The regulation concerning the electrical and electronic material involves the material assessment for their fire behavior. The CREPIM is accredited by the COFRAC to lead some
of the tests for this kind of application. The different tests in relation with this field are the following ones:
Allumability / self-extinguishing test
NF EN ISO 60695-10-11 - UL 94
These standards refer to different sub-tests which allow the material classification according to the results.
Horizontal test
Classification HB, HB 40 et HB75 or HBF, HF-1 and HF-2 for the foam
This test consists in putting the material horizontally under a 500W flame to assess its fire behavior for the horizontal propagation. Thus, a propagation speed can be measured.
The classification depends on the measured speed.
Vertical test
Classification V0, V1 et V2
This test consists in putting the material vertically under a 500W flame to assess its fire behavior for the flame persistence and thus for the self-extinguishing.
Moreover, the fall of burning fragments is checked during the all test. Flame persistence and glowing duration when the burner is taken away, the flame vertical propagation and
the fall of droplets which cause or not the ignition of the cotton under the sample allow the material classification.
Vertical test
Classification 5VA et 5VB
This test completes the previous one allowing the V0 classification. The complementary test consists in, thanks to a 500W flame, assessing the drilling behavior of the material.
If the material is resistant to the flame and there is no drilling, it can obtain a 5VA or a 5VB classification.
Vertical test for film materials
Classification VTM-0, VTM-1 and VTM-2
This vertical allumability test allows the assessment of a film behavior. As a test giving the vertical classification (V0, V1 or V2), the measured parameters are: the flame
persistence and glowing duration when the burner is taken away, the flame vertical propagation and the fall of droplets which cause or not the ignition of the cotton under the
sample.
ISO 4589-2 : Determination of the limit oxygen index
This test leads to the determination of the minimal oxygen concentration, in addition with nitrogen, which will support the combustion of small vertical samples under some
specific conditions. This test is realized at an ambient temperature of 23°C ± 2°C. Results are defined as limit oxygen index (LOI). Principle: A little sample is hold
horizontally in an atmosphere mixing oxygen and nitrogen in a transparent chimney. The superior extremity of the sample is ignited and the fire behavior is recorded to
compare the combustion duration, the burned length and the specific limits of this combustion. By testing several samples in atmospheres composed by different oxygen
concentrations, it is possible to determine the limit oxygen index.
Allumability test – NF EN 60695-2-10/11/12 – Glow wire test
This test simulates, for instance, an electrical or electronic surge on electronic cards. Indeed, the glow wire allows a really local application (on few millimeters) with real
high temperature (up to 960°C).
The principle is to apply, for 30 seconds, the glow wire on a material to assess the combustion duration, the flame persistence after the withdrawal of the wire and the presence
or not of fragments fall (burning or not).
The wire temperature can vary from the ambient temperature to 960°C allowing the determination of parameters as the GWFI one or the GWIT one or to validate the behavior at a
given temperature (750°C, 850°C …).
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