SIST EN 12050-3:2015
(Main)Wastewater lifting plants for buildings and sites - Part 3: Lifting plants for limited applications
Wastewater lifting plants for buildings and sites - Part 3: Lifting plants for limited applications
This part of this European Standard applies to lifting plants for limited applications for wastewater containing or not containing faecal matter and located below flood level. NOTE Limited application means that the number of users is small and the plant is located in the same room as the sanitary appliance(s) served by it which are installed in accordance with EN 12056-1 and the layout and calculation are in accordance with EN 12056-4. Lifting plants for limited applications for wastewater containing faecal matter are those, where there is another WC available above flood level, and the plants serve no more than a single WC to which it is directly connected (at a distance of max. 0,5 m) and one wash-hand basin, one shower and one bidet provided no other sanitary appliance is directly or indirectly connected. Lifting plants for limited applications for faecal free wastewater are those where a maximum of one hand wash basin or kitchen sink plus one further appliance such as a bathtub or a washing machine or a shower or a dish washer are connected. No other sanitary appliance shall be directly or indirectly connected. This part of this standard contains general requirements, basic construction and testing principles, together with information on materials and conformity evaluation. Construction and testing requirements for non-return valves used in wastewater lifting plants for limited applications are given in EN 12050-4. This standard does not apply for lifting plants for limited applications for wastewater containing faecal matter where WC flushing is carried out by pressure flushing devices.
Abwasserhebeanlagen für die Gebäude- und Grundstücksentwässerung - Teil 3: Abwasserhebeanlagen zur begrenzten Verwendung
Cette partie de la Norme européenne s’applique aux stations de relevage à application limitée pour effluents contenant des matières fécales ou exempts de matières fécales, situées en dessous du niveau de reflux.
NOTE « À application limitée » signifie que le nombre d’usagers est réduit et que la station est située dans la même pièce que les appareils sanitaires raccordés ), qui sont installés conformément à l’EN 12056-1 ; la conception et les calculs sont conformes à l’EN 12056-4.
Les stations de relevage à application limitée pour effluents contenant des matières fécales sont celles où un W.C. supplémentaire est disponible au-dessus du niveau de reflux ; la station de relevage n'est raccordée, de façon directe (à une distance de 0,5 m au maximum), qu’à un seul W.C., ainsi qu’à un lavabo, une douche et un bidet, dans la mesure où aucun autre appareil sanitaire n’est raccordé, directement ou indirectement.
Les stations de relevage à application limitée pour effluents exempts de matières fécales sont celles auxquelles sont raccordés, au maximum, un lavabo ou un évier, plus un autre sanitaire tel qu’une baignoire, un lave-linge, une douche ou un lave-vaisselle. Aucun autre appareil sanitaire ne doit être raccordé, directement ou indirectement.
La présente partie de la norme contient des exigences générales, des principes fondamentaux de construction et d'essai ainsi que des informations sur les matériaux et l’évaluation de la conformité. Les exigences de construction et d'essai relatives aux dispositifs anti-retour dans les stations de relevage d'effluents contenant des matières fécales sont définies dans l’EN 12050-4.
La présente norme ne s’applique pas aux stations de relevage à application limitée pour effluents contenant des matières fécales lorsque le rinçage du W.C. est effectué par des dispositifs de rinçage à pression.
Stations de relevage d'effluents pour les bâtiments et terrains - Partie 3: Stations de relevage à application limitée pour effluents
Cette partie de la Norme européenne s’applique aux stations de relevage à application limitée pour effluents contenant des matières fécales ou exempts de matières fécales, situées en dessous du niveau de reflux.
NOTE « À application limitée » signifie que le nombre d’usagers est réduit et que la station est située dans la même pièce que les appareils sanitaires raccordés ), qui sont installés conformément à l’EN 12056-1 ; la conception et les calculs sont conformes à l’EN 12056-4.
Les stations de relevage à application limitée pour effluents contenant des matières fécales sont celles où un W.C. supplémentaire est disponible au-dessus du niveau de reflux ; la station de relevage n'est raccordée, de façon directe (à une distance de 0,5 m au maximum), qu’à un seul W.C., ainsi qu’à un lavabo, une douche et un bidet, dans la mesure où aucun autre appareil sanitaire n’est raccordé, directement ou indirectement.
Les stations de relevage à application limitée pour effluents exempts de matières fécales sont celles auxquelles sont raccordés, au maximum, un lavabo ou un évier, plus un autre sanitaire tel qu’une baignoire, un lave-linge, une douche ou un lave-vaisselle. Aucun autre appareil sanitaire ne doit être raccordé, directement ou indirectement.
La présente partie de la norme contient des exigences générales, des principes fondamentaux de construction et d'essai ainsi que des informations sur les matériaux et l’évaluation de la conformité. Les exigences de construction et d'essai relatives aux dispositifs anti-retour dans les stations de relevage d'effluents contenant des matières fécales sont définies dans l’EN 12050-4.
La présente norme ne s’applique pas aux stations de relevage à application limitée pour effluents contenant des matières fécales lorsque le rinçage du W.C. est effectué par des dispositifs de rinçage à pression.
Črpališča odpadne vode za stavbe in zemljišča - 3. del: Črpališča odpadne vode za omejeno uporabo
Ta del evropskega standarda se uporablja za črpališča odpadne vode s fekalijami ali brez njih za omejeno uporabo, ki so pod poplavno ravnjo. OPOMBA: Omejena uporaba pomeni, da je število uporabnikov majhno in da je črpališče v istem prostoru kot sanitarna oprema, s katero deluje in ki je nameščena v skladu s standardom EN 12056-1, ter da sta razporeditev in izračun skladna s standardom EN 12056-4. Črpališča odpadne vode s fekalijami za omejeno uporabo so tista, kjer je nad poplavno ravnjo še eno stranišče in se črpališča uporabljajo samo za eno stranišče, s katerim so neposredno povezana (na razdalji največ 0,5 m), ter en umivalnik, ena prha in en bide, pri čemer ni neposredno ali posredno povezana nobena druga sanitarna oprema. Črpališča odpadne vode brez fekalij za omejeno uporabo so tista, pri katerih sta priključena največ en umivalnik ali kuhinjsko korito in še ena dodatna oprema, na primer kopalna kad ali pralni stroj ali prha ali pomivalni stroj. Neposredno ali posredno ne sme biti priključena nobena druga sanitarna oprema. Ta del tega standarda vsebuje splošne zahteve, osnovna načela zasnove in preskušanja, skupaj z informacijami o materialih ter vrednotenju skladnosti. Zahteve za zasnovo in preskušanje nepovratnih ventilov, ki se uporabljajo v črpališčih odpadne vode za omejeno uporabo, so določene v standardu EN 12050-4. Ta standard se ne uporablja za črpališča odpadne vode s fekalijami za omejeno uporabo, pri katerih se splakovanje stranišča izvaja s tlačnimi splakovalnimi napravami.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Abwasserhebeanlagen für die Gebäude- und Grundstücksentwässerung - Teil 3: Abwasserhebeanlagen zur begrenzten VerwendungStations de relevage d'effluents pour les bâtiments et terrains - Partie 3: Stations de relevage à application limitée pour effluentsWastewater lifting plants for buildings and sites - Part 3: Lifting plants for limited applications91.140.80Drenažni sistemiDrainage systemsICS:Ta slovenski standard je istoveten z:EN 12050-3:2015SIST EN 12050-3:2015en,fr,de01-maj-2015SIST EN 12050-3:2015SLOVENSKI
STANDARDSIST EN 12050-3:20011DGRPHãþD
SIST EN 12050-3:2015
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12050-3
March 2015 ICS 91.140.80 Supersedes EN 12050-3:2000English Version
Wastewater lifting plants for buildings and sites - Part 3: Lifting plants for limited applications
Stations de relevage d'effluents pour les bâtiments et terrains - Partie 3 : Stations de relevage à application limitée pour effluents
Abwasserhebeanlagen für die Gebäude- und Grundstücksentwässerung - Teil 3: Hebeanlagen zur begrenzten Verwendung This European Standard was approved by CEN on 17 January 2015.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12050-3:2015 ESIST EN 12050-3:2015
EN 12050-3:2015 (E) 2 Contents Page Foreword .4 1 Scope .5 2 Normative references .5 3 Terms, definitions, symbols and abbreviations .6 3.1 Terms and definitions .6 3.2 Symbols and abbreviations .6 3.2.1 Symbols .6 3.2.2 Abbreviations .7 4 Material and product characteristics .7 4.1 Materials .7 4.2 Mechanical resistance .7 4.3 Watertightness .7 4.4 Odourtightness .7 4.5 Lifting effectiveness .7 4.5.1 General .7 4.5.2 Pipe connections .8 4.5.3 Ventilation .8 4.5.4 Minimum flow velocity .8 4.5.5 Minimum free ball passage of the plant .9 4.5.6 Minimum size of discharge pipework .9 4.6 Control equipment .9 4.7 Electrical equipment .9 4.8 Fixing devices . 10 4.9 Reaction to fire . 10 4.9.1 General . 10 4.9.2 Plants classified as Class A1 without the need for testing . 10 4.9.3 Plants classified according to test results . 10 4.10 Noise level . 11 4.11 Durability . 11 4.11.1 General . 11 4.11.2 Durability of watertightness and odourtightness . 11 4.11.3 Durability of lifting effectiveness . 11 4.11.4 Durability of mechanical resistance . 12 4.12 Dangerous substances . 12 5 Testing . 12 5.1 General . 12 5.2 Testing for hydraulic performance . 12 5.3 Tightness testing . 12 5.3.1 Water pressure test . 12 5.3.2 Odourtightness of faecal lifting plants . 12 5.3.3 Discharge pipe connection . 13 5.4 Lifting effectiveness of lifting plants for limited applications for wastewater containing faecal matter . 13 5.4.1 Pumping of solids . 13 5.4.2 Test procedure . 14 5.4.3 Completion of test . 14 5.4.4 Maximum inflow . 14 SIST EN 12050-3:2015
EN 12050-3:2015 (E) 3 5.4.5 Additional connections . 14 5.4.6 Device for preventing backflow (if fitted) . 14 5.5 Lifting effectiveness of lifting plants for limited applications for faecal free wastewater . 15 6 Assessment and verification of constancy of performance - AVCP . 15 6.1 General . 15 6.2 Type testing . 16 6.2.1 General . 16 6.2.2 Test samples, testing and compliance criteria . 16 6.2.3 Test reports . 17 6.2.4 Shared other party results . 17 6.2.5 Cascading determination of the product type results . 18 6.3 Factory production control (FPC) . 19 6.3.1 General . 19 6.3.2 Requirements . 19 6.3.3 Product specific requirements . 23 6.3.4 Initial inspection of factory and of FPC [only for products covered by AVCP system 1] . 23 6.3.5 Continuous surveillance of FPC [only for products covered by AVCP system 1] . 24 6.3.6 Procedure for modifications. 24 6.3.7 One-off products, pre-production products (e.g. prototypes) and products produced in very low quantity . 24 7 Marking, labelling and packaging . 25 7.1 Manufacturer's declaration . 25 7.2 Marking . 25 8 Manufacturer's instructions for installation, operation and maintenance . 26 Annex A (informative)
Recommended materials . 27 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Regulation . 28 ZA.1 Scope and relevant characteristics . 28 ZA.2 Procedure for AVCP of Wastewater lifting plants for limited applications . 30 ZA.2.1 System(s) of AVCP . 30 ZA.2.2 Declaration of performance (DoP) . 32 ZA.2.2.1 General . 32 ZA.2.2.2 Content. 33 ZA.2.2.3 Example of DoP . 33 ZA.3 CE marking and labelling. 35 Bibliography . 39
SIST EN 12050-3:2015
EN 12050-3:2015 (E) 4 Foreword This document (EN 12050-3:2015) has been prepared by Technical Committee CEN/TC 165 “Wastewater engineering”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2015 and conflicting national standards shall be withdrawn at the latest by December 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12050-3:2000. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of the Regulation (EU) No. 305/2011. For relationship with EU Regulation, see informative Annex ZA, which is an integral part of this document. EN 12050 “Wastewater lifting plants for buildings and sites” consists of the following parts: — Part 1: Lifting plants for wastewater containing faecal matter — Part 2: Lifting plants for faecal-free wastewater — Part 3: Lifting plants for limited applications — Part 4: Non-return valves for faecal-free wastewater and wastewater containing faecal matter The main changes with respect to the previous edition are listed below: a) Title was shortened and scope changed to apply for lifting plants for limited applications for domestic non-commercial wastewater containing or not containing faecal matter; b) reaction to fire added; c) paragraph title “Evaluation of conformity” changed to “Assessment and verification of constancy of performance – AVCP” and updated in accordance with “Implementation of the Construction Products Regulation (CPR) in harmonized standards”; d) Annex ZA updated in accordance with “Implementation of the Construction Products Regulation (CPR) in harmonized standards” (adoption of the Regulation EU No. 305/2011); e) editorially revised. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 12050-3:2015
EN 12050-3:2015 (E) 5 1 Scope This European Standard applies to lifting plants for limited applications for domestic non-commercial wastewater containing or not containing faecal matter and located below flood level. NOTE Limited application means that the number of users is small and the plant is located in the same room as the sanitary appliance(s) served by it1) which are installed in accordance with EN 12056–1 and the layout and calculation are in accordance with EN 12056–4. This European Standard applies to lifting plants for limited applications designed for wastewater containing faecal matter, where there is another WC available above flood level, and the plants serve no more than a single WC to which it is directly connected (at a distance of max. 0,5 m) and one hand washbasin, one shower and one bidet provided no other sanitary appliance is directly or indirectly connected. This European Standard also applies to lifting plants for limited applications designed for faecal free wastewater, where a maximum of one hand washbasin or kitchen sink plus one further appliance such as a bathtub or a washing machine or a shower or a dish washer or an urinal are connected. No other sanitary appliance shall be directly or indirectly connected. This European Standard contains general requirements, basic construction and testing principles, together with information on materials. Construction and testing requirements for non-return valves used in wastewater lifting plants for limited applications are given in EN 12050-4. This European Standard does not apply for lifting plants for limited applications for wastewater containing faecal matter where WC flushing is carried out by pressure flush valve. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 33, WC pans and WC suites — Connecting dimensions EN 997, WC pans and WC suites with integral trap EN 12056-1, Gravity drainage systems inside buildings — Part 1: General and performance requirements EN 12056-4, Gravity drainage systems inside buildings — Part 4: Wastewater lifting plants — Layout and calculation EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification using data from reaction to fire tests EN 13823, Reaction to fire tests for building products — Building products excluding floorings exposed to the thermal attack by a single burning item EN 60529, Degrees of protection provided by enclosures (IP Code) (IEC 60529)
1) The installation of a faecal lifting plant for limited applications above flood level is normally not allowed but limited to exceptional cases described in EN 12056-1; lifting plants above flood level are not subject to this standard. SIST EN 12050-3:2015
EN 12050-3:2015 (E) 6 EN ISO 9906:2012, Rotodynamic pumps — Hydraulic performance acceptance tests — Grades 1, 2 and 3 (ISO 9906:2012) EN ISO 20361, Liquid pumps and pump units — Noise test code — Grades 2 and 3 of accuracy (ISO 20361) 3 Terms, definitions, symbols and abbreviations 3.1 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1.1 lifting plant for limited applications device for the automatic lifting of wastewater which may or may not contain faecal matter to a height above flood level from sanitary appliances connected to it and located in the same room Note 1 to entry
A non-return valve according to EN 12050–4 is a component of the plant. 3.1.2 flood level maximum level to which waste water can rise within a drainage system [SOURCE: EN 12056-1:2000, 3.1.7] 3.1.3 tank of lifting plant for limited applications integral part of a lifting plant for limited applications, containing the pump and its controls and the liquid volume required by the pump installation to fulfil its function Note 1 to entry
The tank of a lifting plant for limited applications is not considered to be a collection tank according to EN 12050–1. 3.1.4 pumping device of lifting plant for limited applications component of a lifting plant for limited applications which pumps wastewater to a height above flood level 3.1.5 maximum pump operating pressure maximum hydrostatic pressure that the pumping device is capable to create 3.1.6 ball passage passage where a ball with a defined diameter can pass through without deformation 3.2 Symbols and abbreviations 3.2.1 Symbols di
pipe internal diameter, in mm Q
flow rate, in l/s H
discharge head, in m v
flow velocity, in m/s SIST EN 12050-3:2015
EN 12050-3:2015 (E) 7 3.2.2 Abbreviations AVCP assessment and verification of constancy of performance DN nominal diameter CWT classified without testing CWFT classified without further testing SBI single burn item DoP declaration of performance FPC factory production control 4 Material and product characteristics 4.1 Materials Materials used shall be adequate to meet the demands of installation and operation. Materials shall comply with the requirements of this standard and shall not release dangerous substances (see 4.10). Examples of suitable materials for the construction of wastewater lifting plants are given in Annex A (informative). For tanks only corrosion resistant materials or materials with a corrosion resistant protective coating shall be used. 4.2 Mechanical resistance The structural stability of tanks shall be shown to be adequate for the place of installation. When tested according to 5.3.1 the tank shall be tight and shall not show any deformation influencing subsequent function of the lifting plant. 4.3 Watertightness Lifting plants for limited applications, except their inlet, outlet and vent openings, shall be closed and watertight when tested according to 5.3.1. 4.4 Odourtightness Lifting plants for limited applications for wastewater containing faecal matter shall be odourtight when tested according to 5.3.2. 4.5 Lifting effectiveness 4.5.1 General The lifting plant for limited applications shall be capable of pumping domestic wastewater including all the solid matter it usually contains, as defined in EN 12056-1. It shall be designed in such a way that solid matter generally does not accumulate. Lifting plants for limited applications for wastewater containing faecal matter with macerators are generally not suitable for handling wastewater with abrasive solids (e.g. sand). Lifting plants for limited applications for faecal free wastewater shall be capable of pumping wastewater which can contain sand particles and other solids up to 2 mm size. SIST EN 12050-3:2015
EN 12050-3:2015 (E) 8 When tested in accordance with 5.4 for lifting plants for limited application for wastewater containing faecal matter or 5.5 for lifting plants for faecal free wastewater, the plant shall not show damages which could affect the operation of the plant. 4.5.2 Pipe connections The dimensions of inlet, discharge and ventilating connections shall permit the use of standardised pipes. Connections shall be flexible and leak-tight. The discharge pipe connection shall withstand a pressure that is 1,5 times the maximum pump operating pressure without leaking. The WC inlet connection shall facilitate connection of a WC according to EN 997 and EN 33. Wastewater flows shall be unimpeded, in accordance with EN 12056-1. The connected pipes shall be able to drain freely. The minimum diameter of additional connections shall be according to Table 1. Table 1 — Minimum connection diameter Appliance System I System II System III System IV Hand washbasin kitchen sink, bidet 40 DN 30 DN 30 DN 30 DN Shower, urinal 50 DN 40 DN 40 DN 40 DN Bathtub 50 DN 50 DN 40 DN 50 DN Dishwasher, washing machine 50 DN 50 DN 40 DN 40 DN NOTE Adapted from EN 12056–2:2000. Additional connections shall ensure that wastewater containing faecal matter cannot contaminate or significantly displace the trap seal of a sanitary appliance. If wastewater inflow is below the maximum water level in the tank, a device can be provided to prevent backflow into the wastewater pipe. In accordance with manufacturer's specifications access to this device shall be possible for maintenance purposes. This shall be limited to exceptional cases. The preferred solution shall allow self-draining and unrestricted inflow into the tank without any interruption as required by EN 12056-1:2000, 4.2 and EN 12056-4:2000, 5.2. 4.5.3 Ventilation The container shall be adequately ventilated. Ventilation of lifting plants for limited applications for wastewater containing faecal matter into a room shall be odour-free. 4.5.4 Minimum flow velocity When tested in accordance with 5.2, the minimum flow velocity in the discharge pipework shall be at least 0,7 m/s at a manometric pressure of 30 kPa (0,3 bar). The minimum flow rate shall be calculated in accordance with Formula (1). 2i3min104dvQ×××=−π (1) Where: v
is the minimum flow velocity in the discharge pipework = 0,7 m/s; di
is the pipe internal diameter in mm; SIST EN 12050-3:2015
EN 12050-3:2015 (E) 9 Qmin
is the minimum flow rate in l/s. For convenience, Figure 1 shows the relationship between flow and internal diameter di of the discharge pipe. The pumping device shall be able to deal with this flow.
Key Y pipe internal diameter di in mm X1 flow rate Q in l/s X2 flow rate Q in m3/h Figure 1 — Relationship between flow and pipe internal diameter of the discharge pipe 4.5.5 Minimum free ball passage of the lifting plant The ball passage in faecal lifting plants for limited applications between the WC inlet to the plant and the suction opening of the pumping device or of the macerator shall be at least 25 mm. The ball passage for faecal-free wastewater for lifting plants for limited applications between inlet connections and the suction opening of the pumping device shall be a minimum of 10 mm. 4.5.6 Minimum size of discharge pipework Discharge connections, discharge pipework and non-return valves for lifting plants for limited applications shall have a minimum internal diameter of 20 mm; for non-macerating faecal lifting plants for limited applications, the minimum internal diameter shall be 25 mm. 4.6 Control equipment Lifting plants for limited applications shall be fitted with control equipment for automatic operation. 4.7 Electrical equipment The electrical equipment of the plant shall comply with at least protection type IP 44 to EN 60529. SIST EN 12050-3:2015
EN 12050-3:2015 (E) 10 4.8 Fixing devices Lifting plants for limited applications shall be designed to prevent rotation or floatation. 4.9 Reaction to fire 4.9.1 General Where use of a plant is subject to national regulatory requirements on reaction to fire, its reaction to fire performance shall be considered as that of its components (i.e. material approach) and shall be declared as one of the following classes, according to EN 13501-1: a) Class A1, without the need for testing (CWT), when meeting the requirements, specified in 4.9.2, or otherwise; b) Class A1 to E, defined according to the results of testing the plant's constituent material(s), according to the standard(s) referred to in EN 13501-1, as specified in 4.9.3 of this standard. 4.9.2 Plants classified as Class A1 without the need for testing The reaction to fire performance of a plant shall be declared as Class A12) without the need for testing, provided that: a) each of the plant's constituent materials contains not more than 1 % of homogeneously distributed organic material, by mass or volume (whichever is the most onerous); and b) any external coating, if applied over the surface area of the plant, is made of inorganic material(s), which is/are also classified as Class A1. 4.9.3 Plants classified according to test results 4.9.3.1 Principle For the purpose of the reaction to fire performance of the plant each of its constituent materials, including those in surface coating of the plant, if any, shall be classified according to EN 13501-1 and only the lowest class of such materials shall be declared. The class of an individual constituent material shall be obtained as the result of the test method(s), relevant to this class, and as specified in the standards referred to in EN 13501-1. NOTE A constituent material of the plant is considered as one which may have a significant effect on the reaction to
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