Prefabricated gypsum plasterboard panels with a cellular paperboard core - Definitions, requirements and test methods

This European Standard specifies the characteristics and performance of prefabricated panels made of gypsum plasterboard facings complying with EN 520 and a cellular paperboard core intended to be used as a lightweight partition, lining and encasement for general use in buildings.
This standard covers the following characteristics: reaction to fire, water vapour permeability, flexural strength (breaking load) and thermal resistance to be measured according to the corresponding European test methods.
This Standard covers only prefabricated panels installed so that the core is not exposed.
The following performance characteristics are linked to systems assembled with prefabricated panels made of gypsum plasterboard facings and a cellular paperboard core: shear strength, fire resistance, direct airborne sound insulation, acoustic absorption and air permeability to be measured according to the corresponding European test methods. If required, tests should be done on assembled systems simulating the end use conditions.
This document covers also additional technical characteristics that are of importance for the use and acceptance of the product by the Building Industry.
It provides for the evaluation of conformity of the products to this document.

Gipsplatten-Wandbaufertigtafeln mit einem Kartonwabenkern - Begriffe, Anforderungen und Prüfverfahren

Diese Europäische Norm legt die Eigenschaften und Leistung von Gipsplatten Wandbaufertigtafeln fest, die aus Gipsplatten nach EN 520 und einem Kartonwabenkern bestehen und zur allgemeinen Anwendung als Leicht Trennwände, Wandbekleidungen und Ummantelungen in Gebäuden bestimmt sind.
Die Norm behandelt die Leistungsmerkmale Brandverhalten, Wasserdampfdurchlässigkeit, Biegezugfestigkeit (Bruchlast) und Wärmedurchlasswiderstand, die mit den entsprechenden europäischen Prüfverfahren zu bestimmen sind.
Diese Norm deckt nur Gipsplatten Wandbaufertigtafeln ab, die so eingebaut sind, dass der Wabenkern nicht offen liegt.
Die folgenden Leistungsmerkmale beziehen sich auf Systeme, die mit Gipsplatten Wandbaufertigtafeln mit einem Kartonwabenkern erstellt werden: Scherfestigkeit, Feuerwiderstand, Luftschalldämmung, Schallabsorption und Luftdurchlässigkeit, die nach den entsprechenden europäischen Prüfverfahren zu bestimmen sind. Sofern erforderlich, sollten Prüfungen an zusammengesetzten Systemen, die den Gebrauchszustand simulieren, durchgeführt werden.
Dieses Dokument behandelt darüber hinaus zusätzliche technische Eigenschaften, die für die Anwendung und Akzeptanz des Produkts durch die Bauwirtschaft von Bedeutung sind.
Es enthält Festlegungen zur Bewertung der Übereinstimmung der Produkte mit diesem Dokument.

Panneaux de cloison préfabriqués en plaques de plâtre à âme cellulaire en carton - Définitions, prescriptions et méthodes d'essai

La présente Norme européenne définit les caractéristiques et les performances des panneaux de cloison préfabriqués composés de parements en plaques de plâtre conformes à l’EN 520 avec une âme cellulaire en carton, conçus pour être utilisés comme cloison légère, revêtement ou enrobage à usage général dans les bâtiments.
La présente norme couvre les caractéristiques suivantes : réaction au feu, perméabilité à la vapeur d’eau, résistance à la flexion (charge de rupture) et résistance thermique à mesurer conformément aux méthodes d’essai européennes correspondantes.
La présente norme couvre uniquement les panneaux de cloison préfabriqués installés de sorte que l’âme n’est pas exposée.
Les caractéristiques de performance suivantes sont liées aux systèmes assemblés avec des panneaux de cloison préfabriqués composés de parements en plaques de plâtre avec une âme cellulaire en carton : résistance au cisaillement, résistance au feu, isolation acoustique aux bruits aériens, absorption acoustique et perméabilité à l’air, qui doivent être mesurées conformément aux méthodes d’essai européennes correspondantes. Au besoin, il convient d’effectuer des essais sur des systèmes assemblés qui simulent les conditions d’utilisation finale.
Le présent document couvre également les caractéristiques techniques supplémentaires qui ont une incidence sur l’utilisation et la réception du produit par l’Industrie du Bâtiment.
Elle spécifie l’évaluation et la vérification de la constance des performances des produits.

Mavčne plošče - Stenski predizdelani elementi s celičastim jedrom - Definicije, zahteve in preskusne metode

Ta evropski standard določa lastnosti in zmogljivost stenskih predizdelanih elementov iz mavčnih plošč, ki so v skladu s standardom EN 520, s celičastim jedrom, namenjenih za uporabo kot lahke pregrade, obloge in ohišja za splošno uporabo v stavbah.
Ta standard zajema naslednje lastnosti, ki jih je treba meriti v skladu z ustreznimi evropskimi preskusnimi metodami: odziv na ogenj, prepustnost vodne pare, upogibna trdnost (porušna obremenitev) in toplotna odpornost.
Ta standard zajema le predizdelane elemente, ki so montirani tako, da jedro ni izpostavljeno.
S sistemi, sestavljenimi iz predizdelanih elementov iz mavčnih plošč s celičastim jedrom, so povezane naslednje lastnosti delovanja, ki jih je treba meriti v skladu z ustreznimi evropskimi preskusnimi metodami: strižna trdnost, požarna odpornost, izolirnost pred neposrednim zvokom v zraku, absorpcija zvoka in zračna prepustnost. Po potrebi je treba preskuse izvesti za sestavljene sisteme, ki simulirajo pogoje končne uporabe.
Ta dokument zajema tudi dodatne tehnične lastnosti, ki so pomembne pri uporabi in sprejemljivosti proizvoda s strani gradbene industrije.
Omogoča vrednotenje skladnosti izdelkov s tem dokumentom.

General Information

Status
Published
Public Enquiry End Date
14-Mar-2016
Publication Date
10-Aug-2017
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Aug-2017
Due Date
06-Oct-2017
Completion Date
11-Aug-2017

Relations

Buy Standard

Standard
EN 13915:2017
English language
27 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Gipsplatten-Wandbaufertigtafeln mit einem Kartonwabenkern - Begriffe, Anforderungen und PrüfverfahrenPanneaux de cloison préfabriqués en plaques de plâtre à âme cellulaire en carton - Définitions, prescriptions et méthodes d'essaiPrefabricated gypsum plasterboard panels with a cellular paperboard core - Definitions, requirements and test methods91.100.10Cement. Mavec. Apno. MaltaCement. Gypsum. Lime. MortarICS:Ta slovenski standard je istoveten z:EN 13915:2017SIST EN 13915:2017en,fr,de01-september-2017SIST EN 13915:2017SLOVENSKI
STANDARDSIST EN 13915:20071DGRPHãþD



SIST EN 13915:2017



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13915
July
t r s y ICS
{ sä s r rä s r Supersedes EN
s u { s wã t r r yEnglish Version
Prefabricated gypsum plasterboard panels with a cellular paperboard core æ Definitionsá requirements and test methods Panneaux de cloison préfabriqués en plaques de plâtre à âme cellulaire en carton æ Définitionsá exigences et méthodes d 5essai
GipsplattenæWandbaufertigtafeln mit einem Kartonwabenkern æ Begriffeá Anforderungen und Prüfverfahren This European Standard was approved by CEN on
t { July
t r s xä
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
9
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 u { s wã t r s y ESIST EN 13915:2017



EN 13915:2017 (E) 2 Contents Page European foreword . 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions . 6 4 Requirements . 6 4.1 Fire behaviour . 6 4.1.1 Reaction to fire . 6 4.1.2 Fire resistance . 6 4.2 Impact resistance . 7 4.3 Water vapour permeability (expressed as water vapour resistance factor) . 7 4.4 Flexural strength (expressed as deflection under a defined load) . 7 4.5 Direct airborne sound insulation . 7 4.6 Acoustic absorption. 7 4.7 Thermal resistance (expressed as thermal conductivity) . 8 4.8 Dimensions and tolerances . 8 4.9 Alignment . 8 4.10 Core adhesion . 8 4.11 Release of dangerous substance . 8 4.12 Flatness of panels . 9 5 Test methods . 9 5.1 Sampling . 9 5.2 Dimensional measurements . 9 5.2.1 Width . 9 5.2.2 Length . 9 5.2.3 Thickness . 9 5.3 Determination of alignment . 11 5.3.1 Principle . 11 5.3.2 Apparatus . 11 5.3.3 Procedure. 11 5.3.4 Expression of results . 12 5.4 Determination of deflection . 12 5.4.1 Principle . 12 5.4.2 Apparatus . 12 5.4.3 Procedure. 12 5.4.4 Expression of results . 13 5.5 Determination of the core adhesion . 13 5.5.1 Principle . 13 5.5.2 Apparatus . 13 5.5.3 Procedure. 13 5.5.4 Expression of results . 13 5.6 Determination of surface hardness of the panel . 14 5.6.1 Principle . 14 5.6.2 Apparatus . 15 5.6.3 Procedure. 15 5.6.4 Expression of results . 17 5.7 Determination of the panel’s flatness . 17 SIST EN 13915:2017



EN 13915:2017 (E) 3 5.7.1 Principle . 17 5.7.2 Apparatus and specimens. 17 5.7.3 Procedure . 17 5.7.4 Expression of results . 17 6 Assessment and verification of constancy of performance – AVCP . 17 6.1 General . 17 6.2 Type testing . 18 6.2.1 General . 18 6.2.2 Determination of the product type . 18 6.2.3 Further type testing . 18 6.3 Factory production control (FPC) . 18 6.3.1 General . 18 6.3.2 Personnel . 19 6.3.3 Equipment . 19 6.3.4 Raw materials and components . 19 6.3.5 Product testing and evaluation . 19 6.3.6 Traceability and marking . 19 6.3.7 Non-conforming products . 19 6.3.8 Corrective action . 19 6.3.9 Other test methods . 19 7 Designation of the prefabricated gypsum plasterboard panels . 19 8 Marking, labelling and packaging . 20 Annex A (informative)
Sampling procedure for testing . 21 A.1 General . 21 A.2 Sampling procedure . 21 Annex B (normative)
Mounting and fixing in the test according to EN 13823 (SBI test) . 22 B.1 General . 22 Annex ZA (informative)
Relationship of this European Standard with Regulation (EU) No.305/2011 . 24 ZA.1 Scope and relevant characteristics . 24 ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP) . 25 ZA.3 Assignment of AVCP tasks . 25 Bibliography . 27
SIST EN 13915:2017



EN 13915:2017 (E) 4 European foreword This document (EN 13915:2017) has been prepared by Technical Committee CEN/TC 241 “Gypsum and gypsum based products”, the secretariat of which is held by AFNOR. 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 January 2018, and conflicting national standards shall be withdrawn at the latest by April 2019. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 13915:2007. The main changes that have been made in this new edition of EN 13915 are the following: a) deletion of the Introduction; b) normative references have been updated; c) Clause 6 and Annex ZA have been revised to be in line with the Construction Products Regulation (CPR); d) document has been editorially revised. 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 Regulation (EU) No. 305/2011. For relationship with Regulation (EU) No. 305/2011, see informative Annex ZA, which is an integral part of this document. This European standard includes: — informative Annex A concerning sampling procedure for testing; — normative Annex B concerning SBI mounting and fixing for prefabricated panels made of plasterboard facings and a cellular paperboard core. 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 13915:2017



EN 13915:2017 (E) 5 1 Scope This European Standard specifies the characteristics and performance of prefabricated panels made of gypsum plasterboard facings complying with EN 520 and a cellular paperboard core intended to be used as a lightweight partition, lining and encasement for general use in buildings. This standard covers the following characteristics: reaction to fire, water vapour permeability, flexural strength (breaking load) and thermal resistance to be measured according to the corresponding European test methods. This Standard covers only prefabricated panels installed so that the core is not exposed. The following performance characteristics are linked to systems assembled with prefabricated panels made of gypsum plasterboard facings and a cellular paperboard core: shear strength, fire resistance, direct airborne sound insulation, acoustic absorption and air permeability to be measured according to the corresponding European test methods. If required, tests should be done on assembled systems simulating the end use conditions. This document covers also additional technical characteristics that are of importance for the use and acceptance of the product by the Building Industry. It provides the assessment and verification of constancy of performance of the products. 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 520:2004+A1:2009, Gypsum plasterboards — Definitions, requirements and test methods EN 12664:2001, Thermal performance of building materials and products — Determination of thermal resistance by means of guarded hot plate and heat flow meter methods — Dry and moist products of medium and low thermal resistance 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 13501-2:2016, Fire classification of construction products and building elements — Part 2: Classification using data from fire resistance tests, excluding ventilation services EN 13823:2010+A1:2014, Reaction to fire tests for building products — Building products excluding floorings exposed to the thermal attack by a single burning item EN 13963:2014, Jointing materials for gypsum boards — Definitions, requirements and test methods EN ISO 354:2003, Acoustics — Measurement of sound absorption in a reverberation room (ISO 354:2003) EN ISO 717-1:2013, Acoustics — Rating of sound insulation in buildings and of building elements — Part 1: Airborne sound insulation (ISO 717-1:2013) EN ISO 10140-2:2010, Acoustics — Laboratory measurement of sound insulation of building elements — Part 2: Measurement of airborne sound insulation (ISO 10140-2:2010) EN ISO 10456:2007, Building materials and products — Hygrothermal properties —Tabulated design values and procedures for determining declared and design thermal values (ISO 10456:2007) SIST EN 13915:2017



EN 13915:2017 (E) 6 EN ISO 11925-2:2010, Reaction to fire tests — Ignitability of products subjected to direct impingement of flame — Part 2: Single-flame source test (ISO 11925-2:2010) EN ISO 12572:2016, Hygrothermal performance of building materials and products — Determination of water vapour transmission properties — Cup method (ISO 12572:2016) ISO 7892:1986, Vertical building elements — Impact resistance tests — Impact bodies and general test procedures 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 prefabricated gypsum plasterboard panel panel that is made up of two gypsum plasterboards according to EN 520, possibly up to 15 mm thick, bonded to both sides of a cellular paperboard core Note 1 to entry: It is commonly named “panel” in this standard. 3.2 panel facing exposed surface of plasterboard to receive either coating or finishing 3.3 length dimension of the panel parallel to the paper covered edges, measured on the panel facing 3.4 width dimension of the panel perpendicular to the paper covered edges, measured on the panel facing 3.5 thickness distance between the panel facings 4 Requirements 4.1 Fire behaviour 4.1.1 Reaction to fire When subject to regulatory requirements, prefabricated gypsum plasterboard panels shall be tested and classified in accordance with EN 13501-1. Prefabricated gypsum plasterboard panels tested according to EN 13823 (SBI test) shall be mounted and fixed in accordance with Annex B or when the producer wishes to claim performance for a specific intended use, the mounting and fixing shall be representative of that intended use. Prefabricated gypsum plasterboard panels tested according to EN ISO 11925-2 (Ignitability) shall be tested with surface attack only due to the fact that edge attack cannot occur in end use conditions. 4.1.2 Fire resistance NOTE Resistance to fire is a characteristic dependent on an assembled system and not of the product in isolation. SIST EN 13915:2017



EN 13915:2017 (E) 7 When required, the fire resistance of a system including prefabricated gypsum plasterboard panels shall be classified according to EN 13501-2. 4.2 Impact resistance NOTE Impact resistance is a characteristic dependent on an assembled system and not of the product in isolation. When the manufacturer wishes to declare the impact resistance performance of a system that includes prefabricated gypsum plasterboard panels, the performance of the system shall be determined in accordance with ISO 7892. 4.3 Water vapour permeability (expressed as water vapour resistance factor) Water vapour permeability is not a characteristic of heterogeneous products like panels therefore water vapour resistance is used instead. When the manufacturer wishes to declare a performance for moisture diffusion control, tabulated design values of water vapour resistance for gypsum plasterboards given in EN ISO 10456 may be used for calculation. Alternatively, the water vapour resistance factor shall be determined in accordance with EN ISO 12572. 4.4 Flexural strength (expressed as deflection under a defined load) When determined in accordance with the test method described in 5.4, the deflection shall not exceed the values given in Table 1. Table 1 — Deflection values Panel thickness Deflection (max) mm mm 50 < e < 60 37,5 60
e < 70 30 70
e
80 15 4.5 Direct airborne sound insulation NOTE Direct airborne sound insulation is a characteristic dependent on the assembled system and not of the product in isolation. When the manufacturer wishes to declare the performance for the direct airborne sound insulation of an installed system including prefabricated gypsum plasterboard panels, the performance of the system shall be determined according to EN ISO 10140-2 or EN ISO 717-1 as appropriate. 4.6 Acoustic absorption NOTE Acoustic absorption is a characteristic dependent on an assembled system and not of the product in isolation. When the manufacturer wishes to declare the performance of prefabricated gypsum plasterboard panels to be used for acoustic conditioning, the performance of acoustic absorption shall be determined according to EN ISO 354. SIST EN 13915:2017



EN 13915:2017 (E) 8 4.7 Thermal resistance (expressed as thermal conductivity) When the manufacturer wishes to claim the intended use of panels is to contribute to thermal resistance in building construction works (walls, partitions, etc.), he/she shall use for calculation, the design values of thermal resistance for gypsum plasterboards given in EN ISO 10456 or the thermal conductivity shall be determined according to EN 12664. 4.8 Dimensions and tolerances The usual dimensions of panels are: — widths: 1 200 mm, 900 mm and 600 mm: When determined by the method described in 5.2.1 the tolerance on each panel shall be: {0mm5−. — lengths: Up to 3 600 mm: When determined by the method described in 5.2.2 the tolerance on each panel shall be: {05mm− — thicknesses: panels are normally available in thicknesses of 46 mm to 80 mm: NOTE Preferred thicknesses are 46 mm, 50 mm, 57 mm, 60 mm, 63 mm and 72 mm. When determined by the method described in 5.2.3 the tolerance for specified thickness on each panel shall be: ± 1 mm. 4.9 Alignment When determined by the method described in 5.3 the measured deviation from one gypsum plasterboard facing the other shall not exceed: — 5 mm on the length; — 3 mm across the width. 4.10 Core adhesion When determined by the test method described in 5.5, the adhesion shall meet the following values: — average value higher than 0,01 MPa; — individual values higher than 6 × 103 MPa. 4.11 Release of dangerous substance National regulations on dangerous substances may require verification and declaration on release, and sometimes content, when construction products covered by this standard are placed on those markets. In the absence of European harmonized test methods, verification and declaration on release/content should be done taking into account national provisions in the place of use. NOTE An informative database covering European and national provisions on dangerous substances is available at the Growth website on EUROPA accessed through: https://ec.europa.eu/growth/tools-databases/cp-ds
SIST EN 13915:2017



EN 13915:2017 (E) 9 4.12
Flatness of panels The deviation of the panel’s flatness, determined according to 5.7 shall not exceed 3 mm in width direction and 5 mm in length direction. 5 Test methods 5.1 Sampling Testing shall require three panels of each thickness. Whole panels are used for 5.2 and 5.3. For testing flexural strength (5.4) specimens shall be cut out from three different panels, for testing core adhesion (5.5) three specimens shall be cut out from one single panel. 5.2 Dimensional measurements 5.2.1 Width 5.2.1.1 Principle The distance between the extremities of the shorter linear dimension of the panel facing shall be measured. 5.2.1.2 Apparatus A metal rule or a metal tape permitting readings to 1 mm. 5.2.1.3 Procedure Take two measurements to the nearest 1 mm on each facing of each panel (see Figure 1 a)). 5.2.1.4 Expression of results The width of each panel is determined by the average of the four measurements expressed in millimetres. 5.2.2 Length 5.2.2.1 Principle The distance between the ends of the longer linear dimension of the panel facing shall be measured on each face. 5.2.2.2 Apparatus A metal rule or a metal tape permitting readings to 1 mm. 5.2.2.3 Procedure Take two measurements to the nearest 1 mm on each facing of each panel (see Figure 1 b)). 5.2.2.4 Expression of results The length of each panel is determined by the average of the four measurements expressed in millimetres. 5.2.3 Thickness 5.2.3.1 Principle The distance between the two faces of the panel shall be measured. SIST EN 13915:2017



EN 13915:2017 (E) 10 5.2.3.2 Apparatus A calliper with an anvil diameter not less than 10 mm, permitting readings to 0,1 mm. 5.2.3.3 Procedure Take six measurements to the nearest 0,1 mm across one end equally spaced across the width and not less than 25 mm from an end or 100 mm from an edge (see Figure 1 c)) for each panel. 5.2.3.4 Expression of results The thickness of each panel is determined by the average of the six measurements expressed in millimetres. SIST EN 13915:2017



EN 13915:2017 (E) 11 Dimensions in millimetres
a) Measurement of width
b) Measurement of length
c) Measurement of thickness Figure 1 — Dimensional measurements 5.3 Determination of alignment 5.3.1 Principle The distance between the edges of the gypsum plasterboards shall be measured. 5.3.2 Apparatus a) flat surface; b) metal rule or a metal tape permitting readings to 1 mm. 5.3.3 Procedure Lay the panel on a flat surface. Measure the distance between the edges of the gypsum plasterboards as shown in Figure 2. Turn over the panel when necessary (8 measurements in total). SIST EN 13915:2017



EN 13915:2017 (E) 12 Dimensions in millimetres
Key 1 through 8 measurement positions each at 100 mm from the edge Figure 2 — Determination of alignment 5.3.4 Expression of results Take the largest measurement on the cut edges (length deviation) and the largest measurement on the paper covered edges (width deviation) as shown in Figure 2. Compare each measurement (expressed in millimetres) to the dimensions given in 4.8. 5.4 Determination of deflection 5.4.1 Principle The deflection of the specimen shall be measured under a flexural load (see Figure 3). 5.4.2 Apparatus Testing device allowing the loads and loading rates described below to be achieved (see Figure 3). 5.4.3 Procedure The 2 100 mm long specimen is cut out from the panel as shown in Figure 3. The s
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.