SIST EN 13984:2013
(Main)Flexible sheets for waterproofing - Plastic and rubber vapour control layers - Definitions and characteristics
Flexible sheets for waterproofing - Plastic and rubber vapour control layers - Definitions and characteristics
This document specifies the characteristics of flexible sheets of plastic or rubber intended for use as watervapour control layers for buildings and applies to both reinforced and unreinforced products. It specifiesrequirements and test methods and provides for the evaluation of conformity of the products with therequirements of this document.
Abdichtungsbahnen - Kunststoff- und Elastomer-Dampfsperrbahnen - Definitionen und Eigenschaften
Dieses Dokument legt Definitionen und Eigenschaften von Abdichtungsbahnen aus Kunststoffen und Elastomeren als Wasserdampfsperren fest, die in erster Linie zur Abdichtung von Bauwerken dienen. Diese Norm gilt für Produkte mit und ohne Trägereinlage. Sie enthält Festlegungen der Anforderungen und Prüfverfahren sowie der Bewertung der Konformität von Produkten nach den Anforderungen dieses Dokumentes.
Feuilles souples d'étanchéité - Feuilles plastiques et élastomères utilisées comme pare-vapeur - Définitions et caractéristiques
La présente Norme européenne spécifie les caractéristiques des feuilles plastiques et élastomères souples utilisées comme pare-vapeur dans les bâtiments et s’applique aux produits armés et non armés. E lle précise les exigences et les méthodes d’essai et prévoit l’évaluation de la conformité de ces produits aux exigences de la présente Norme européenne.
Hidroizolacijski trakovi - Polimerni in elastomerni trakovi, ki kontrolirajo gibanje vode in/ali vodne pare - Definicije in lastnosti
Ta dokument določa značilnosti polimernih in elastomernih trakov, ki se uporabljajo za kontroliranje gibanja vode in/ali vodne pare za stavbe, ter se uporablja za ojačane in neojačane izdelke. Določa zahteve in preskusne metode ter podaja vrednotenje skladnosti proizvodov z zahtevami iz tega dokumenta.
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Hidroizolacijski trakovi - Polimerni in elastomerni trakovi, ki kontrolirajo gibanje vode in/ali vodne pare - Definicije in lastnostiAbdichtungsbahnen - Kunststoff- und Elastomer-Dampfsperrbahnen - Definitionen und EigenschaftenFeuilles souples d'étanchéité - Feuilles plastiques et élastomères utilisées comme pare-vapeur - Définitions et caractéristiquesFlexible sheets for waterproofing - Plastic and rubber vapour control layers - Definitions and characteristics91.100.50Veziva. Tesnilni materialiBinders. Sealing materials01.040.91Gradbeni materiali in gradnja (Slovarji)Construction materials and building (Vocabularies)ICS:Ta slovenski standard je istoveten z:EN 13984:2013SIST EN 13984:2013en,fr,de01-april-2013SIST EN 13984:2013SLOVENSKI
STANDARDSIST EN 13984:2005/A1:2007SIST EN 13984:20051DGRPHãþD
SIST EN 13984:2013
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13984
February 2013 ICS 91.100.50; 01.040.91 Supersedes EN 13984:2004English Version
Flexible sheets for waterproofing - Plastic and rubber vapour control layers - Definitions and characteristics
Feuilles souples d'étanchéité - Feuilles plastiques et élastomères utilisées comme pare-vapeur - Définitions et caractéristiques
Abdichtungsbahnen - Kunststoff- und Elastomer-Dampfsperrbahnen - Definitionen und Eigenschaften This European Standard was approved by CEN on 8 December 2012.
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
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13984:2013: ESIST EN 13984:2013
EN 13984:2013 (E) 2 Contents Page Foreword .3 1 Scope .4 2 Normative references .4 3 Terms and definitions .5 4 Product designation .6 5 Product characteristics .6 6 Evaluation of conformity .8 7 Product data sheet and designation . 10 8 Marking, labelling and packaging . 11 Annex A (informative)
Product designation, typical materials and structure of sheets . 12 Annex B (normative)
Method of measuring the resistance of ventilating vapour control layers to deformation under load . 13 Annex C (informative)
Example of product data sheet . 17 Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or other provisions of EU Directives . 18 Bibliography . 27
SIST EN 13984:2013
EN 13984:2013 (E) 3 Foreword This document (EN 13984:2013) has been prepared by Technical Committee CEN/TC 254 “Flexible sheets for waterproofing”, the secretariat of which is held by NEN. 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 August 2013, and conflicting national standards shall be withdrawn at the latest by August 2013. 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 13984:2004. 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 EU Directives. For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. Compared with EN 13984:2004, the following main technical changes were made: new extended mounting and fixing rules; durability against chemicals is specified after EN 1847. According to the CEN/CENELEC Internal Regulations, the national standards organisations 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 13984:2013
EN 13984:2013 (E) 4 1 Scope This European Standard specifies the characteristics of flexible sheets of plastic or rubber intended for use as water vapour control layers for buildings and applies to both reinforced and unreinforced products. It specifies requirements and test methods and provides for the evaluation of conformity of the products with the requirements of this European Standard. 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 1296, Flexible sheets for waterproofing — Bitumen, plastic and rubber sheets for roofing — Method of artificial ageing by long term exposure to elevated temperature EN 1847, Flexible sheets for waterproofing — Plastics and rubber sheets for roof waterproofing — Methods for exposure to liquid chemicals, including water EN 1848-2, Flexible sheets for waterproofing — Determination of length, width, straightness and flatness — Part 2: Plastic and rubber sheets for roof waterproofing EN 1849-2, Flexible sheets for waterproofing — Determination of thickness and mass per unit area — Part 2: Plastic and rubber sheets
EN 1850-2, Flexible sheets for waterproofing — Determination of visible defects — Part 2: Plastic and rubber sheets for roof waterproofing EN 1928:2000, Flexible sheets for waterproofing — Bitumen, plastic and rubber sheets for roof waterproofing — Determination of watertightness EN 1931, Flexible sheets for waterproofing — Bitumen, plastic and rubber sheets for roof waterproofing — Determination of water vapour transmission properties EN 12310-1, Flexible sheets for waterproofing — Part 1: Bitumen sheets for waterproofing — Determination of resistance to tearing (nail shank) EN 12311-2, Flexible sheets for waterproofing — Determination of tensile properties — Part 2: Plastic and rubber sheets for roof waterproofing EN 12317-2, Flexible sheets for waterproofing — Determination of the shear resistance of joints — Part 2: Plastic and rubber sheets for roof waterproofing EN 12691, Flexible sheets for waterproofing — Bitumen, plastic and rubber sheets for roof waterproofing — Determination of resistance to impact EN 13416:2001, Flexible sheets for waterproofing — Bitumen, plastic and rubber sheets for roof waterproofing — Rules for sampling EN 13501-1:2007+A1:2009, Fire classification of construction products and building elements — Part 1: Classification using data from reaction to fire tests EN 13859-1:2010, Flexible sheets for waterproofing — Definitions and characteristics of underlays — Part 1: Underlays for discontinuous roofing SIST EN 13984:2013
EN 13984:2013 (E) 5 EN ISO 11925-2, Reaction to fire tests — Ignitability of products subjected to direct impingement of flame — Single-flame source test (ISO 11925-2) EN ISO 9001, Quality management systems — Requirements (ISO 9001) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 13416:2001 and the following apply. 3.1 water vapour control layers flexible sheet of plastic or rubber or composites sheet whose function is to control the movement of water and/or water vapour through a wall, floor or roof Note 1 to entry: They may have different permeabilities to water vapour depending on the specific use. In composite sheets, the plastic sheet is the functional component. 3.2 ventilating or draining vapour control layers flexible sheets conforming to the definition in 3.1 but with the ability to provide a continuous void or structure to allow free movement of water vapour or liquid water between the sheet and any further construction 3.3 manufacturer's limiting value MLV value stated by the manufacturer to be met during testing, which can be a minimum or a maximum value according to statements made under product characteristics of this document 3.4 manufacturer's declared value MDV value declared by the manufacturer accompanied by a declared tolerance 3.5 plastic sheet factory made flexible sheet made from a plastic elastomeric polymeric material and which may include composites with other materials 3.6 rubber sheet factory made flexible sheet made from an elastomeric polymeric material and which may include composites with other materials 3.7 sampling procedure used to select or constitute a sample 3.8 sample sheet from which a test piece is taken 3.9 test piece part of the sample from which test specimens are taken 3.10 test specimen piece of precise dimensions taken from the test piece SIST EN 13984:2013
EN 13984:2013 (E) 6 4 Product designation The types of vapour control layers covered by this European Standard are designated as follows: Type A: Vapour control layers; Type B: Vapour control layers – non-water tight; Type V: Vapour control layers - ventilating or draining vapour control layer. 5 Product characteristics 5.1 General 5.1.1 Where a tolerance is limited by this European Standard, it does not have to be declared by the manufacturer. 5.1.2 When tested for purposes other than initial type testing or factory production control, the tests to determine product characteristics indicated in this European Standard shall be started within one month of delivery from the manufacturer. 5.2 Visible defects The product shall be free of visible defects as determined in accordance with EN 1850-2. 5.3 Dimensions and tolerances The length, width and straightness shall be determined in accordance with EN 1848-2. The length and width shall lie within the declared tolerance of the manufacturer's declared value (MDV). The maximum deviation from straightness shall not exceed 75 mm per 10 m length or in proportion for other lengths (e.g. 37,5 mm per 5 m length). 5.4 Thickness and mass per unit area The thickness and mass per unit area shall be determined in accordance with EN 1849-2. Where a product is specified by mass per unit area, the mass shall lie within the declared tolerance of the manufacturer's declared value. Where the dimensions of any profile are comparable to the area to be measured, a larger sample area shall be used and the deviation from the test method noted. Where a product is specified by thickness, the minimum thickness shall lie within the declared tolerance of the manufacturer's declared value. No single measurement shall lie outside the declared tolerance of the manufacturer's declared value. 5.5 Water tightness Types A and V vapour control sheets shall be watertight as determined by EN 1928:2000, Method A, with a pressure of 2 kPa. 5.6 Resistance to impact Where required, the resistance to impact shall be determined in accordance with EN 12691 and the result shall be greater than or equal to the manufacturer's limiting value. SIST EN 13984:2013
EN 13984:2013 (E) 7 5.7 Durability 5.7.1 After exposure to artificial ageing The product shall be exposed to an elevated temperature of 70 °C for 12 weeks in accordance with EN 1296. The water vapour resistance of the aged product shall not change by more than ± 50 % of that of the un-aged product when tested to EN 1931. 5.7.2 Against alkali Where required, the resistance against alkali of vapour control sheets shall be tested before and after exposure to chemicals in accordance with EN 1847. Before and after the long term exposure to alkali in accordance with EN 1847, test liquid 2 (milk of lime), 28 d at 23 °C, the tensile properties are tested in accordance with EN 12311-2. The maximum tensile force shall not be reduced more than 50 % after storage.
5.8 Resistance to tearing (nail shank) For unreinforced sheets, the tear resistance (nail shank) shall be determined in accordance with EN 12310-1 and shall be greater than or equal to the manufacturer's limiting value. For reinforced sheets, the tear resistance (nail shank) shall be determined in accordance with Annex B of EN 13859-1:2010 and shall be greater than or equal to the manufacturer's limiting value. 5.9 Joint strength Where required the joint strength shall be determined in accordance with EN 12317-2 and shall be greater than or equal to the manufacturer's limiting value. 5.10 Water vapour transmission properties The water vapour resistance shall be determined in accordance with EN 1931 and shall lie within the declared tolerance of the manufacturer's declared value. 5.11 Tensile properties The tensile properties of unreinforced sheets shall be determined in accordance with EN 12311-2 and shall be greater than or equal to the manufacturer's limiting value for the longitudinal and transverse directions of the sheet. The tensile properties of reinforced sheets shall be determined in accordance with Annex A of EN 13859-1:2010 and shall be greater than or equal to the manufacturer's limiting value for the longitudinal and transverse directions of the sheet. 5.12 Reaction to fire Where required, the product shall be tested and classified in accordance with EN 13501-1:2007+A1:2009, Table 1. According to EN ISO 11925-2, the test is required to be undertaken on the exposed surface of the delivered flexible sheet (surface or edge exposure) free hanging without any substrate in one direction only, and the reinforcement has to be stated by the manufacturer as “organic” or “inorganic”. a) Test results from EN ISO 11925-2 for a given product shall apply to all colours (including black, white). b) Test results from EN ISO 11925-2 for a given product without an inner layer (homogenous) shall apply to a comparable product with an additional organic inner layer (lower than 150 g/m2) or any additional inorganic layer. SIST EN 13984:2013
EN 13984:2013 (E) 8 c) Test results from EN ISO 11925-2 for a product with a thickness of above 1 mm, shall apply to any comparable product with a higher thickness up to a limit of 3 mm respectively. d) Test results from EN ISO 11925-2 for a given product with a backing shall apply to a comparable product with a backing of the same type of lower mass per unit area or no backing. NOTE It is currently considered that the Euroclasses Classification system at Classes D and above requires investigation to determine its appropriateness to the products covered by this standard (the SBI test may be inappropriate for products covered by the standard). Pending results of such an investigation and discussions in the Fire Regulators Group, products covered by this document are tested to EN ISO 11925-2. If and when a new fire test scenario and test method are developed for the products, this standard will be amended to refer to them. 5.13 Resistance to deformation under load The resistance to deformation under load shall be determined in accordance with Annex B and the results shall be greater than or equal to the manufacturer's limiting value. 5.14 Dangerous substances Materials used in products shall not release any dangerous substances in excess of the maximum permitted levels specified in a relevant European Standard for the material or permitted in the national regulations of the member state of destination. NOTE For additional information, see Annex ZA. The manufacturer shall disclose on the product wrapper and in the health and safety data sheets the use of any additive or constituent considered hazardous. 6 Evaluation of conformity 6.1 General The compliance of a plastic or rubber vapour control layer with the requirements of this European Standard and with the stated values (including classes) shall be demonstrated by: initial type testing; factory production control by the manufacturer. For the purposes of testing, products may be grouped into families, where it is considered that the selected property is common to all products within that family. 6.2 Type testing 6.2.1 General Initial type testing shall be performed to show conformity with this European Standard. Tests previously performed in accordance with the provisions of this European Standard (same product, same characteristic(s), test method, sampling procedure, system of attestation of conformity, etc.) may be taken into account. In addition, initial type testing shall be performed at the beginning of the production of a new product type (unless a member of the same family) or at the beginning of a new method of production (where this may affect the stated properties). All characteristics in Clause 5 shall be subject to initial type testing, where required (see Table 1). SIST EN 13984:2013
EN 13984:2013 (E) 9 Whenever a change occurs in the product design, the raw material or supplier of the components, or the production process (subject to the definition of a family), which would change significantly one or more of the characteristics, the type tests shall be repeated for the appropriate characteristic(s). 6.2.2 Sampling Samples shall be taken according to EN 13416. The minimum number of tests to show compliance for initial and further type testing shall be one for all characteristics. 6.3 Factory production control (FPC) 6.3.1 General The manufacturer shall establish, document and maintain an FPC system to ensure that the products placed on the market conform to the stated performance characteristics. The FPC system shall consist of procedures, regular inspections and tests and/or assessments and the use of the results to control raw and other incoming materials or components, equipment, the production process and the product. If a manufacturer claims compliance with FPC requirements by operating an EN ISO 9001 system,
EN ISO 9001 shall be applied in full and shall be made specific to the requirements of this European Standard. The results of inspections, tests or assessments requiring action shall be recorded, as shall any action taken. The action to be taken when control values or criteria are not met shall be recorded. 6.3.2 Frequency of testing The characteristics to be controlled within the framework of factory production control are those for which the manufacturer claims a performance. Control of the product is required, either by direct testing or by indirect control. The frequency of testing shall be given in the manufacturer's factory production control system. Table 1 — Compliance criteria for initial type testing (1 of 2) Property Product type Parameter Clause in this document Test method Compliance criteria (where required) A B V Water vapour transmission * * * MDV 5.10 EN 1931 Within declared tolerance of the MDV Water tightness to liquid water *
* Watertight at 2 kPa 5.5 EN 1928 Pass Reaction to fire * * * Euroclass 5.12 EN 13501-1 (see Note in 5.12) Classification Tensile properties - unreinforced sheets - reinforced sheets
* *
* *
* *
MLV MLV
5.11 5.11
EN 12311-2 EN 13859-1
Greater than or equal to MLV
Durability of water vapour resistance against ageing * * * Not more than ± 50% change 5.7.1 EN 1296
evaluation testing according to EN 1931 Pass SIST EN 13984:2013
EN 13984:2013 (E) 10 Table 1 — Compliance criteria for initial type testing (2 of 2) Property Product type Parameter Clause in this document Test method Compliance criteria (where required) A B C Resistance to impact * * * MLV 5.6 EN 12691
Greater than or equal to MLV Resistance to tear (Nail Shank) - unreinforced sheets - reinforced sheets
* *
* *
* *
MLV MLV
5.8 5.8
EN 12310-1 EN 13859-1
Greater than or equal to MLV
Joint strength * * * MLV 5.9 EN 12317-2 Greater than or equal to MLV
Resistance to deformation under load
* MLV 5.13 Annex B Greater than or equal to MLV Resistance to alkali * - * Watertight at 2 kPa
5.7.2 EN 1847 (liquid 2) evaluation testing according to EN12311-2 Pass Length * * * MDV 5.3 EN 1848-2 Within declared tolerance of the MDV Width * * * MDV 5.3 EN 1848-2 Within declared tolerance of the MDV Thickness * * * MDV 5.4 EN 1849-2 Within declared tolerance of the MDV Mass * * * MDV 5.4 EN 1849-2 Within declared tolerance of the MDV Straightness * * * Less than or equal to 75 mm/10 m 5.3 EN 1848-2 Pass Dangerous substances * * * As relevant 5.14 As relevant
Visible defects * * * Visible defects 5.2 EN 1850-2 No visible defects 7 Product data sheet and designation The characteristics of the product shall be listed in a technical data sheet, an example of which is shown in Annex C. The technical data sheet shall give at least the following information: a) product trade name and manufacturer's name; b) origin/source of manufacture or traceable code; c) method of application; d) results from the tests in Table 1, as appropriate for the intended end use; e) certification mark, if any; f) consumer information, e.g. restrictions concerning use and storage and safety precautions during installation and disposal; g) description of the product (e.g. type and number of carriers, type of coating, mass or thickness, type of surfacing). SIST EN 13984:2013
EN 13984:2013 (E) 11 8 Marking, labelling and packaging The following information shall be indicated on each roll or at least on each consignment: a) production date or identification number; b) product trade name; c) length and width; d) thickness or mass; e) labelling according to national regulations related to dangerous substances and/or health and safety; f) type of product (Type A, Type B or Type V). NOTE Where ZA.3 covers the same information as required by Clause 8, the requirements of this clause are met. SIST EN 13984:2013
EN 13984:2013 (E) 12 Annex A
(informative)
Product designation, typical materials and structure of sheets A.1 Typical materials A.1.1 General Three groups of synthetic materials are used in the application of flexible sheets for waterproofing and vapour control layers: plastics, rubbers and thermoplastic rubbers. Within these three groups there are various materials, which can be different in their nature and way of manufacturing. In the following there are listed some typical materials for the individual groups. Other materials may be possible, because this European Standard should not hinder further development. A.1.2 Plastics CSM Chlorosulfonyl polyethylene EEA Ethylene/ethyl acetate
Ethylene/ethyl acetate terpolymer (stated in full words) EBA Ethylene/butyl acetate ECB Ethylene, copolymer, bitumen EVAC Ethylene/vinyl acetate FPO Flexible polyolefin FPP Flexible polypropylene
PE Polyethylene PE-C Chlorinated polyethylene
PIB Polyisobutylene PP Polypropylene PVC Polyvinylchloride A.1.3 Rubbers BR
Butadiene rubber CR
Chloroprene rubber CSM Chlorosulfonyl polyethylene rubber EPDM Terpolymer of ethylene, propylene and a diene with residual unsaturated portion of diene in the side chain IIR
Isobutene-isoprene rubber (butyl rubber) NBR Acrylonitrile-butadiene rubber (nitrile rubber) A.1.4 Thermoplastic rubbers EA
Elastomeric alloys MPR Melt processible rubber SEBS Styrene ethylene butylene styrene TPE-O Thermoplastic elastomers, not cross-linked TPE-V Thermoplastic elastomers, cross-linked SIST EN 13984:2013
EN 13984:2013 (E) 13 Annex B (normative)
Method of measuring the resistance of ventilating vapour control layers to deformation under load B.1 Principle This is a method for the determination of the resistance to deformation under load of ventilating or draining thermoplastic damp proof sheets and water vapour control products. The method is intended for the initial testing and/or for quality control purposes. The purpose of the test is to determine the resistance to deformation under load of flexible profiled (non-flat) sheets for vapour control which in addition provide ventilation or drainage. A conditioned test specimen is placed under a fixed load. Deformation is recorded as a function of time. The test is suitable for products, other than flat sheets, which experience plastic creep, i.e. the test measures the ability of the products to retain their shape under a long term fixed load. A suitable fixed load is defined as the required design load, plus a factor of safety. The time period for testing is determined by assessment of the development of deformation with time in relation to both acceptable degree of deformation and expected life of product. These factors are illustrated in Figures B.1 and B.2. Extrapolation shall not exceed one unit of logarithmic time and the extrapolated part of the data shall be clearly indicated by a dotted line.
Key D deformation (%) t time (h) Figure B.1 — Typical curve for deformation against time SIST EN 13984:2013
EN 13984:2013 (E) 14
Key D deformation (%) t time 1 1 year 2 10 years 3 50 years Figure B.2 — Typical logarithmic plot against time to determine deformation for design life B.2 Apparatus The specimen is placed between parallel rigid compression plates which distribute the load uniformly over the area of the specimen. Load may be applied by the use of physical weights or an alternative comparable method. Deformation is registered as a function of time. Preloading of the specimen prior to zeroing of deformation instrumentation may be applied to suit the product to be tested. Zeroing of the deformation instrumentation shall be arranged such that any deformation prior to zeroing is either eliminated or negligible. Deformation is preferably measured direct on the pressure plate, or as close to the specimen as is practically possible, so that deformation errors in the apparatus are eliminated. Measuring instruments for deformation shall have a minimum accuracy of ± 0,02 mm. All measurements shall be recorded to the nearest 0,01 mm. NOTE A typical test apparatus using physical weights is shown in Figure B.3. SIST EN 13984:2013
EN 13984:2013 (E) 15
Key 1 weights 2 measuring gauge 3 support frame 4 base plate 5 specimen 6 pressure plate Figure B.3 — Typical test apparatus using physical weights B.3 Preparation of test samples and test specimens B.3.1 Sampling Samples shall be taken in accordance with EN 13146. B.3.2 Preparation of test specimens Square or rectangular specimens of minimum dimension 120 mm shall be used, so that test results are representative for design loads and required performance of the product being tested. NOTE Specimen minimum size may be confirmed as a function of profile height by type testing, so as to eliminate the effect of less resistance against load along the edge of the specimen. Condition the test specimens for at least 24 h at (23 ± 2) °C. SIST EN 13984:2013
EN 13984:2013 (E) 16 B.4 Procedure If results are to be presented as a percentage, measure the height of the product prior to commencement of loading. Determine the mean value for the specimen. Measure the size of the specimen. Carry out testing at a temperature of (23 ± 2) °C. Place the specimen between the compression plates, apply preload where appropriate, and zero the deformation instrumentation. Apply the load as smoothly and as quickly as possible. Subject the specimen to a constant static load over a period of time and a humidity of 50 % ± 20 % RH. If humidity has no influence on the property being examined, the relative humidity may be uncontrolled. Measure deformation in millimetres as a function of time. NOTE Generally, the greatest deformation takes place initially,
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