1

Metodi di prova per la determinazione della reazione al

fuoco: evoluzione del quadro europeo

Silvio Messa

21 Marzo 2013

1a Conferenza NazionalePOLIURETANO ESPANSO RIGIDOIsolamento Termico e Risparmio Energetico

Parc Hotel - Castelnuovo del Garda (VR)

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Our laboratories

L.S.Fire Testing Institute Srl

Via Olgiate, 15

22070 Oltrona di S.M. (CO)

Via Bonifica, 464010 Controguerra (TE)

Tel. +39-031-890588

e-mail: labo@lsfire.it

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THE TEST METHODSUSED IN THE STANDARD

EN 13501EN 13501--11edition 2009

Fire classification of construction products and building elements

Part 1: Classification using data from reaction to fire tests

Classificazione al fuoco dei prodotti e degli elementi da costruzione

Parte 1: Classificazione in base ai risultati delle prove di reazione al fuoco

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Normative references EN 13501-1

Fire testsFull-scale room test for surface products

ISO 9705EN 14390

Reaction to fire tests for building productsBuilding products excluding floorings exposed to the thermalattack by a single burning itemEN 13823

Reaction to fire testsIgnitability of building products subjected to direct impingement of flamePart 2: Single-flame source test

EN ISO 11925-2

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EN ISO 11925-2

Prove di reazione al fuoco - accendibilità dei prodotti da costruzione sottoposti all’attacco

diretto della fiamma Parte 2: prova con l’impiego di una singola fiamma

Reaction to fire tests - Ignitability of building products subjected to direct impingement of flame Part 2: Single-flame source test Ignition (with a

small flame)

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EN ISO 11925-2

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EN ISO 11925-2

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EN 13823

Prove di reazione al fuoco dei prodotti da costruzione –Prodotti da costruzione esclusi i pavimenti esposti ad un

attacco termico prodotto da un singolo oggetto in combustione

Reaction to fire tests for building products - Building productsexcluding floorings exposed to the thermal attack by a single

burning item

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EN 13823

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EN 13823

11

ISO 9705EN 14390

Fire tests

Full-scale room test for surface products

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Room Corner Test - RCT

� Room:� length: 3,6 m� width: 2,4 m� height: 2,4 m

� Burner� 10 minutes at 100 kWthen� 10 minutes at 300 kW

2 1

2,4

3,6

20

,4

0,8

13

ISO 9705EN 14390

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ISO 9705EN 14390

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16

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THE TEST METHODSUSED IN THE STANDARD

EN 45545EN 45545--22new edition 2013

Railway application – Fire protection on railway vehicles – Part 2

Requirements for fire behaviour of materials and components

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Normative references EN 45545-2

Reaction to fire tests for flooringsPart 1 : Determination of the burning behaviour using a radiant heat sourceEN ISO 9239-1

Plastics — Smoke generationPart 2: Determination of optical density by a single-chamber testISO 5659-2

Reaction-to-fire testsHeat release, smoke production and mass loss rate

Part 1:Heat release (cone calorimeter method)

ISO 5660-1

Reaction to fire tests - Spread of flamePart 2: Lateral spread on building products in vertical configurationISO 5658-2

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EN 45545-2 – table 2 pag.13requirement of listed products

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EN 45545-2 – table 5material requirement sets

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EN 45545-2 – table 5material requirement sets

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ISO 5658-2

Reaction to fire tests- Spread of flame

Part 2:

Lateral spread on building products in vertical configuration

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ISO 5658-2

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ISO 5658-2

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ISO 5660-1

Reaction-to-fire testsHeat release, smoke production

and mass loss rate

Part 1:Heat release (cone calorimeter method)

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ISO 5660-1

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ISO 5660-1

102.4

0

50

100

150

200

250

0 120 240 360 480 600Tempo (s)

(kW)

RHR

ARHE

mARHE

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ISO 5659-2

Plastics — Smoke generation —

Part 2:

Determination of optical density by a single-chamber test

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ISO 5659-2

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ISO 5659-2 for TRANSFEU

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ISO 5659-2 + new FTIR

calibration

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ISO 5659-2 + EN 45545-2 Ann.C

CIT - Conventional Index of Toxicity

CIT = [Precursor Term] × [Summation Term]

∑=

=

××

×=8

123

23

004225.0150

1.051.0 i

i i

iG C

c

mm

mmCIT

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EN ISO 9239-1

Reaction to fire tests for floorings -Part 1 : Determination of the burning

behaviour using a radiant heat source

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EN ISO 9239-1

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EN ISO 9239-1

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Il futuro

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ORA

� Nella preparazione delle EN 45545 la valutazione della tossicità si fa con l’indice CIT

� CIT - Conventional Index of Toxicity� Il quale tiene conto delle concentrazioni di

gas narcotizzanti ed irritanti a 4 minuti e 8 minuti

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In futuro

� Nel prossimo futuro, il WG dovrebbe adottare la filosofia di Transfeu� Misura dei fumi e gas tossici in continuo per tutta

la durata del test� Calcolo del FED e FEC e determinazione del

tempo in cui si raggiunge la soglia di tenibilità

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FED/FEC index (according to ISO 13571) bench scale (smoke box 50 kW/m² no pilot flame)

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

0 120 240 360 480 600 720 840 960 1080 1200

Time (s)

FED

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

2

0 120 240 360 480 600 720 840 960 1080 1200

Time (s)

FEC

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FEC e FED (ISO 13571)

� FED (Fractional Effective Dose)

� FEC (Fractional Effective Concentration)

ttFEDt

t

HCNt

t

CO ∆+∆= ∑∑2

1

2

1 220

)43/exp(

35000

ϕϕ

∑+++++++=i i

i

eformaldeid

eformaldeid

acroleina

acroleina

NO

NO

SO

SO

HF

HF

HBr

HBr

HCl

HCl

FcFFFFFFFFEC

]irritante[

2

2

2

2ϕϕϕϕϕϕϕ