EN 16755:2017
(Main)Durability of reaction to fire performance - Classes of fire-retardant treated wood products in interior and exterior end use applications
Durability of reaction to fire performance - Classes of fire-retardant treated wood products in interior and exterior end use applications
This European Standard describes the characteristics for fire-retardant treated wood products.
NOTE 1 It is based on maintaining performance undiminished throughout the desired service life in the anticipated conditions of use.
The European Standard prescribes the classification requirements for the durability of the reaction to fire performance of fire-retardant treated wood products to be used in interior and exterior end use conditions.
This European Standard applies to wood which has been treated during a production process with fire retardant products applied either by a penetration process or by a superficial process, such as with a film forming or intumescent fire retardant coating. It covers fire-retardant treated products that are coated with an ordinary paint.
Mechanical properties and biological durability of fire-retardant treated wood products are not covered by this European Standard.
NOTE 2 This standard can be used for other manufactured wood products.
This standard covers wood products. It doesn’t cover wood-based panels.
NOTE 3 Wood based panels for construction are described in EN 13986.
Dauerhaftigkeit des Verhaltens bei Brandeinwirkung - Klassen der mit Feuerschutzmitteln behandelten Holzprodukte für Anwendungen im Innen- und Außenbereich
Die vorliegende Europäische Norm beschreibt die Eigenschaften von mit Feuerschutzmitteln behandelten Holzprodukten.
ANMERKUNG 1 Hierbei wird davon ausgegangen, dass Feuerschutz Eigenschaften über die gewünschte Gebrauchsdauer unter den angenommenen Bedingungen unvermindert vorhalten.
Die Europäische Norm schreibt die Klassifizierungsanforderungen an die Dauerhaftigkeit des Verhal¬tens bei Brandeinwirkung von mit Feuerschutzmitteln behandelten Holzprodukten vor, die in Innen und Außen¬bereichen eingesetzt werden.
Diese Europäische Norm gilt für Holz, das während eines Produktionsprozesses mit einem Feuer-schutzmittel behandelt wurde, auf /eingebracht entweder durch ein eindringendes oder ein oberflächliches Verfahren, z. B. Holz mit einer filmbildenden Beschichtung oder einer Intumeszenz-Beschichtung. Es umfasst mit Feuerschutzmitteln behandelte Produkte, die mit einem üblichen Anstrich beschichtet sind.
Mechanische Eigenschaften und die biologische Dauerhaftigkeit von mit Feuerschutzmitteln behandelten Holzprodukten sind kein Bestandteil der vorliegenden Europäischen Norm.
ANMERKUNG 2 Diese Norm kann für andere be und verarbeitete Holzprodukte genutzt werden.
Diese Norm betrifft Holzprodukte. Sie betrifft keine Holzwerkstoffe.
ANMERKUNG 3 Holzwerkstoffe für den Bau sind in EN 13986 festgelegt.
Durabilité des performances de réaction au feu - Classement des produits à base de bois ignifugés pour utilisation finale en intérieur et en extérieur
La présente Norme européenne décrit les caractéristiques pour les produits en bois ignifugés.
NOTE 1 Le principe est basé sur le maintien et sans diminution de la performance au long de la durée de vie souhaitée dans les conditions d'utilisation prévues.
La présente Norme européenne prescrit les exigences de classification pour la durabilité des performances de réaction au feu des produits en bois ignifugés, destinés à être employés dans des conditions d'utilisation finale en intérieur et en extérieur.
La présente Norme européenne s’applique aux produits en bois ayant fait l'objet d'un traitement ignifugeant durant leur fabrication, appliqué par un processus d'imprégnation à coeur ou en surface, tel qu'un revêtement filmogène ou un revêtement intumescent ignifuge. Il est admis que les produits ignifugés soient revêtus d'une peinture ordinaire (non ignifuge).
Les propriétés mécaniques et la durabilité biologique des produits en bois ignifugés ne sont pas couvertes par la présente Norme européenne.
NOTE 2 Cette norme peut être utilisée pour d'autres produits du bois.
Cette norme couvre les produits en bois. Elle ne couvre pas les panneaux à base de bois.
NOTE 3 Les panneaux à base de bois pour la construction sont décrits dans la norme EN 13986.
Trajnost odziva na ogenj - Razredi lesnih proizvodov, obdelanih z zaščitnimi sredstvi proti ognju, za uporabo v notranjih prostorih in na prostem
Ta evropski standard opisuje karakteristike lesnih proizvodov, obdelanih z zaščitnimi sredstvi proti ognju, pri čemer morajo njihove zaščitne lastnosti proti ognju ostati nedotaknjene skozi celotno življenjsko dobo v pričakovanih pogojih uporabe.
Standard predpisuje zahteve za razvrstitev na področju trajnosti odziva na ogenj za lesne proizvode, obdelane z zaščitnimi sredstvi proti ognju, ki so namenjeni za uporabo pod pogoji končne uporabe, tj. v notranjih prostorih in na prostem. Proizvodi morajo prvotno ustrezati zahtevanemu odzivu na vpliv ognja. Pri uporabi v notranjih prostorih in na prostem je treba preveriti higroskopnost. Poleg tega morajo proizvodi za uporabo na prostem izpolnjevati zahteve minimalne trajnosti odziva na ogenj, specifične za končno uporabo.
Zahteve se uporabljajo za les, ki je bil med procesom proizvodnje obdelan z zaščitnim sredstvom proti ognju, in sicer z globinskim impregniranjem ali površinskim nanašanjem, kot je premaz, ki tvori film, ali premaz z intumescentimi zaščitnimi sredstvi proti ognju. Proizvode, obdelane z zaščitnimi sredstvi proti ognju, je mogoče prebarvati z običajno barvo.
Ta evropski standard ne zajema mehanskih lastnosti in biološke trajnosti lesnih izdelkov, obdelanih z zaščitnimi sredstvi proti ognju.
Barve, premazi in laki, ki so namenjeni izboljšanju odziva na ogenj pri gradbenem proizvodu, ki se vgradi na mestu vgradnje, so zajeti v smernicah ETAG 028 [19].
Ta standard se lahko uporablja kot podlaga za sistem odobritve.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.WHPDauerhaftigkeit des Verhaltens bei Brandeinwirkung - Klassen der mit Feuerschutzmitteln behandelten Holzprodukte für Anwendungen im Innen- und AußenbereichDurabilité des performances de réaction au feu - Classement des produits à base de bois ignifugés pour utilisation finale en intérieur et en extérieurDurability of reaction to fire performance - Classes of fire-retardant treated wood products in interior and exterior end use applications79.040Les, hlodovina in žagan lesWood, sawlogs and sawn timber71.100.50Wood-protecting chemicals13.220.40Sposobnost vžiga in obnašanje materialov in proizvodov pri gorenjuIgnitability and burning behaviour of materials and productsICS:Ta slovenski standard je istoveten z:EN 16755:2017SIST EN 16755:2017en,fr,de01-december-2017SIST EN 16755:2017SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16755
October
t r s y ICS
s uä t t rä v râ
s uä t t rä w râ
y sä s r rä w r English Version
Durability of reaction to fire performance æ Classes of fireæretardant treated wood products in interior and exterior end use applications Durabilitß des performances de rßaction au feu æ Classement des produits à base de bois ignifugßs pour utilisation finale en intßrieur et en extßrieur
Dauerhaftigkeit des Verhaltens bei Brandeinwirkung æ Klassen der mit Feuerschutzmitteln behandelten Holzprodukte für Anwendungen im Innenæ und Außenbereich This European Standard was approved by CEN on
t July
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x y w wã t r s y ESIST EN 16755:2017
Hygroscopic properties of fire-retardant treated wood products including those with fire-retardant coatings . 12 A.1 General . 12 A.2 Field of application . 12 A.3 Sampling, sample handling and preparation . 13 A.3.1 General procedure . 13 A.3.2 Procedure for end use products . 14 A.4 Test method . 14 A.4.1 Principle . 14 A.4.2 Equipment . 14 A.4.3 Testing environment . 14 Annex B (normative)
Accelerated weathering of fire-retardant treated wood for fire testing . 17 B.1 General . 17 B.2 Field of application . 17 B.3 Sampling, sample handling and preparation . 17 B.4 Test method . 18 B.4.1 Principle . 18 B.4.2 Equipment . 18 B.4.3 Testing environment . 19 Annex C (informative)
Example of classification report — Classification report: Durability classes of reaction to fire performance of fire-retardant wood products in interior and exterior end use applications according to EN 16755:2017 . 22 Bibliography . 26
3.1.1 dry condition DRF INT1 moisture content in the materials corresponding to a temperature of 20 °C and the relative humidity of the surrounding air exceeding 65 % only for a few weeks per year Note 1 to entry: In Eurocode EN 1995–1–1 as Service class 1. 3.1.2 humid condition DRF INT2 moisture content in the material corresponding to a temperature of 20 °C and a relative humidity of the surrounding air exceeding 85 % only for a few weeks per year Note 1 to entry: In EN 1995–1–1 defined as Service class 2. 3.2 ordinary paint non-fire retardant paint 4 Symbols and abbreviations The symbols for DRF Classes INT1, INT2 and EXT are the following ones:
Figure 1 — Proposed symbols for classes 5 Requirements 5.1 Wood products and non-fire-retardant coating systems The treatment manufacturing process and application rate declared by the producer shall be declared by the manufacturer of the final product. Actual fire-retardant retention shall be expressed in kg/m3 of the final wood product, or in kg/m2 for surface treated products. Values shall be given for products conditioned at (50 ± 5)% relative humidity at (23 ± 2) °C (as for fire testing) according to EN 13238. For products in DRF Classes INT and EXT procedures for maintenance shall be provided by the manufacturers regarding: — type of maintenance; — interval of maintenance; SIST EN 16755:2017
Intended use Reaction to fire class, initial Hygroscopic propertiesb Reaction to fire performance after weather exposure INT1 Interior dry applications Relevant fire class
- INT2 Interior humid applications Relevant fire class - Moisture content < 28 % - No exudation of liquid - Minimum visible salt with no increase at surface - EXTf Exterior applications Relevant fire class - Moisture content < 28 % - No exudation of liquid - Minimum visible salt with no increase at surface Maintained reaction to fire claimed performancec, d, e after - Accelerated weathering or - Natural weathering Application of specified maintenance may be included. a To be fulfilled using product produced in the same way using the same manufacturing process and having a similar retention level as for the reaction to fire performance. b For INT2 at (90 ± 5) % RH and (27 ± 2) °C according to Annex A. Classes INT2 and EXT are only applicable for product application rates less than or equal to the highest level tested. Wood products treated to higher application rates will be assumed to be Class INT1. c
For EN 13823 according to 5.2.2.2.2, the relevant classification criteria according to EN 13501–1 shall be used. At least the same classification level as initially shall be reached. d Criteria for small scale fire testing according to 5.2.2.2.3 after weather exposure:
- Class B products (according to EN 13501–1): Heat Release Rate, HRR30s ave
150 kW/m2 during 600 s after ignition and Total Heat Release THR600s increase < 20 % compared to fire testing before the weather exposure.
- Class C products (according to EN 13501–1): HRR 30s ave
220 kW/m2 during 600 s after ignition and THR600s increase < 20 % compared to fire testing before the weather exposure. e For DRF Class EXT, the Durability of Reaction to Fire performance classification is only valid for the type of coating system (with an ordinary paint) to be verified. f Verification of DRF Class EXT obtained without a coating system (with an ordinary paint) is valid also for the same product coated, provided that the coating does not reduce the reaction to fire performance according to 5.2.1. NOTE 2 Heat Release Rate, HRR30s ave is calculated as the sum of the HRR peak value and three values before and after the peak (totally seven values) divided by seven. 5.3.5 Practise to use DRF classes Practices to use the DRF classification system: — DRF INT1 and INT2 classifications apply for the lifetime of the wood product provided the product is only used in the intended service class. — DRF Class EXT is complex with a number of factors to be considered. The manufacturers should be consulted regarding service life. SIST EN 16755:2017
Figure 2 — Proposed labels to be used for DRF classes INT1, INT2 and EXT with year of initial testing according to this standard 6 Classification report Classification report according to this document shall be issued by accredited institutes and approval bodies. The classification report shall include the following items: — name and address of the accredited institute or approval body; — name and address of the organization or person stating the classification; — name and address of the manufacturer or supplier of the tested product; — identification of the wood product including type of fire-retardant treatment, retention level and coating details; — a general description of the product including density and thickness; — initial reaction to fire class obtained according to e.g. EN 13501-1 or IMO Code FTP, incl. details on mounting and fixing; — identification and number of the test reports referred to; — accelerated weathering method used for DRF Class EXT; — information if any maintenance shall be performed during use; — hygroscopicity and weathering tests, including test method employed; — performance according to the criteria for the actual DRF class; — reference to this Standard and the fire classification standard used. The format for a classification report is given in Annex C. SIST EN 16755:2017
Hygroscopic properties of fire-retardant treated wood products including those with fire-retardant coatings A.1 General This test method prescribes the procedure for determining the equilibrium moisture content after exposure to standard high relative humidity conditions of (90 ± 5) % at (27 ± 2)°C, depending on DRF class. The method is based on NT Build 504 [16], with changes in A.3 and an additional humid climate included for testing. It is a modified and extended version of ASTM D3201-94 (with the same title) [10]. The extension aims at more repeatable and reproducible results by requiring conditioning to equilibrium moisture content (instead of a specified time, one week, without specifying the sample size or air velocities in the climate chamber in the ASTM version). In this European Standard, some further modifications are included, mainly testing for two interior cases, dry and humid. A.2 Field of application — The method is applicable for assessing the hygroscopic properties of fire-retardant treated wood products (with the fire-retardant incorporated during the manufacturing of the wood product). It is also applicable for wood products with fire-retardant coatings, including film-forming, non-film-forming and intumescent coatings. The hygroscopic properties of wood and wood products treated with fire-retardant chemicals may be greater than for untreated products. This is particularly true at the higher relative humidity conditions. This higher hygroscopicity may cause staining, decay, poor paint adhesion, migration and exuding of chemicals and moisture at the high humidities. Corrosion of metal fasteners may also occur. The results obtained with this Standard are important in determining if the fire-retardant treated wood or wood product has undesirable hygroscopic properties, i.e. reaches an equilibrium moisture content that exceeds that for untreated wood and the maximum prescribed level for the applicable DRF Class. — Two test options are included, one general option and one specific option for end use products. — The general test option (A.3.1) for impregnation treatments and fire-retardant coatings is carried out using Scots pine (Pinus sylvestris) sapwood, in an uncoated manner (without ordinary paint) since this will give c
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