DIN EN 1062-3-2008 Paints and varnishes - Coating materials and coating systems for exterior masonry and concrete - Part 3 Determination of liquid water permeability English versio.pdf

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1、April 2008DEUTSCHE NORM English price group 7No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 87.040!$Mg(“1426805www.di

2、n.deDDIN EN 1062-3Paints and varnishes Coating materials and coating systems for exterior masonry andconcrete Part 3: Determination of liquid water permeabilityEnglish version of DIN EN 1062-3:2008-04Beschichtungsstoffe Beschichtungsstoffe und Beschichtungssysteme fr mineralische Substrate und Beton

3、 imAuenbereich Teil 3: Bestimmung der WasserdurchlssigkeitEnglische Fassung DIN EN 1062-3:2008-04SupersedesDIN EN 1062-3:1999-02www.beuth.deDocument comprises 10 pagesDIN EN 1062-3:2008-04 2 National foreword This standard has been prepared by Technical Committee CEN/TC 139 “Paints and varnishes” (S

4、ecretariat: DIN, Germany), Working Group CEN/TC 139/WG 1 “Coating systems for masonry” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was the Normenausschuss Beschichtungsstoffe und Beschichtungen (Coatings and Coating Materials Standards Committee), Technical

5、Committee NA 002-00-09 AA Beschichtungen und Beschichtungsstoffe fr mineralische Untergrnde/Kunststoff-dispersionsbeschichtungen. Amendments This standard differs from DIN EN 1062-3:1999-02 as follows: a) The title of the standard has been modified. b) Some minor modifications have been made to subc

6、lause 6.4.2 “Conditioning”. c) Clause 7 “Procedure” has been rendered more precise. d) Clause 10 concerning the classification by liquid water transmission rate has been included in Part 1 of the standards series. e) The standard has been editorially revised. Previous editions DIN EN 1062-3: 1999-02

7、 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1062-3 January 2008 ICS 87.040 Supersedes EN 1062-3:1998 English Version Paints and varnishes - Coating materials and coating systems for exterior masonry and concrete - Part 3: Determination of liquid water permeability Peintures et vernis - Pro

8、duits de peinture et systmes de revtements pour maonnerie et bton extrieurs - Partie 3: Dtermination de la permabilit leau liquide Beschichtungsstoffe - Beschichtungsstoffe und Beschichtungssysteme fr mineralische Substrate und Beton im Auenbereich - Teil 3: Bestimmung der Wasserdurchlssigkeit This

9、European Standard was approved by CEN on 25 November 2007. 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 referen

10、ces concerning such national standards may be obtained on application to the CEN 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 in

11、to its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia

12、, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brusse

13、ls 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1062-3:2008: E2 Contents Page Foreword3 Introduction .4 1 Scope 5 2 Normative references 5 3 Principle5 4 Apparatus .5 5 Sampling.6 6 Test specimens6 6.1 General6 6.2 Substrat

14、e 6 6.3 Preparation and coating6 6.4 Drying and conditioning .6 7 Procedure .7 8 Expression of results 7 9 Precision.7 9.1 Repeatability.7 9.2 Reproducibility.8 10 Test report 8 EN 1062-3:2008 (E) DIN EN 1062-3:2008-04 EN 1062-3:2008 (E) 3 Foreword This document (EN 1062-3:2008) has been prepared by

15、 Technical Committee CEN/TC 139 “Paints and varnishes”, 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 July 2008, and conflicting national standards shall

16、 be withdrawn at the latest by July 2008. This document supersedes EN 1062-3:1998. 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. Acc

17、ording to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Lat

18、via, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. DIN EN 1062-3:2008-04 EN 1062-3:2008 (E) 4 Introduction This document is one of a number of parts of EN 1062 dealing with test methods for coating mat

19、erials and coating systems for exterior masonry and concrete. It should be read in conjunction with EN 1062-1. DIN EN 1062-3:2008-04 EN 1062-3:2008 (E) 5 1 Scope This European Standard specifies a method for determining the liquid water permeability of coatings, coating systems and related products,

20、 intended for exterior masonry and classification according to EN 1062-1. The method is applicable to coatings and coating systems on porous substrates such as brick, concrete and renderings. A liquid water permeability w of more than 0,5 kg/(m x h0,5) will not be accurately quantified by the test m

21、ethod described in this standard. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) a

22、pplies. EN 1062-1, Paints and varnishes Coating materials and coating systems for exterior masonry and concrete Part 1: Classification EN 23270, Paints and varnishes and their raw materials Temperatures and humidities for conditioning and testing (ISO 3270:1984) EN ISO 1513, Paints and varnishes Exa

23、mination and preparation of samples for testing (ISO 1513:1992) EN ISO 15148, Hygrothermal performance of building materials and products Determination of water absorption coefficient by partial immersion (ISO 15148:2002) EN ISO 15528, Paints, varnishes and raw materials for paints and varnishes - S

24、ampling (ISO 15528:2000) 3 Principle Exterior masonry coatings play an important role in preventing rain water penetrating into porous mineral substrates. This transmission rate for liquid water is evaluated using blocks of highly porous mineral substrates which are coated by the coating or coating

25、system on one of their faces. The test specimens are immersed under controlled conditions in water and weighed at suitable intervals of time. The liquid water permeability is determined by the change in mass. 4 Apparatus 4.1 Container of suitable size, for deionized water or fresh tap water (potable

26、 water), provided with supports for the test specimens. 4.2 Oven capable of being maintained at a temperature of (50 2) C. 4.3 Balance, capable of weighing 2 000 g to 0,1 g. DIN EN 1062-3:2008-04 EN 1062-3:2008 (E) 6 5 Sampling Take a representative sample of the product to be tested (or of each pro

27、duct in the case of a multi-coat system), as described in EN ISO 15528. Examine and prepare each sample for testing, as described in EN ISO 1513. 6 Test specimens 6.1 General The tests shall be performed with at least three test specimens. NOTE Testing with more than three specimens is recommended t

28、o be able to eliminate outliers if there are any. A specimen consists of a substrate coated with the coating or coating system to be tested. 6.2 Substrate To determine the water transmissibility of a coating or coating system, a substrate with a massy mineral substrate shall be used with a homogeneo

29、us surface having a significantly higher water absorption than the coating or coating system to be tested. Specimens cut from calcium silicate bricks, clay bricks or mortar slabs have been found suitable for the determination of the liquid water permeability of coatings and coating systems for exter

30、ior masonry and concrete. Unless otherwise agreed, such specimens shall be used as the substrate. The specimens shall have a coefficient of liquid water permeability w of more than 1 kg/(m2x h0,5) according to EN ISO 15148. The specimens shall be at least 200 cm2in surface area and at least 2,5 cm i

31、n thickness. 6.3 Preparation and coating The specimens used as the substrate shall be clean and dry. It is important that the original porosity is taken into account by using new specimens for each determination. Coat the substrate by applying the coating or coating system to be tested in the specif

32、ied quantity in accordance with the recommendations of the manufacturer of the coating material(s). The coating shall be free of visible defects. Dry the coating for at least one week. Before conditioning, seal the reverse side and the edges of the test specimens against water, for example by applyi

33、ng two coats of a two-component coating material based on epoxy resin, overlapping the test surface by at least 5 mm but no more than 10 mm. A thixotropic coating system is recommended. 6.4 Drying and conditioning 6.4.1 Drying Unless otherwise agreed, dry the test specimens for a further 7 days with

34、 freely circulating air at (23 2) C and (50 5) % relative humidity (see also EN 23270). DIN EN 1062-3:2008-04 EN 1062-3:2008 (E) 7 6.4.2 Conditioning NOTE The liquid water permeabilty is influenced by the volatile and/or water-soluble components of the coating. As, in practice, these components can

35、evaporate from the coating during outdoor exposure or be washed out by water (rain), the coating is aged prior to the determination of the liquid water permeability. Subject the test specimens to three cycles comprising the following conditions: 24 h storage in water (potable water changed for every

36、 cycle) at (23 2) C; 24 h drying at (50 2) C. If the coatings are thermoplastic at 50 C, the test specimens shall be suspended and/or suitably placed in the oven, ensuring that they do not adhere to the parts of the oven and/or to each other. During weekends, or interruption for other reasons, store

37、 the test specimens in the standard atmosphere as defined in EN 23270 (23 2) C and (50 5) % relative humidity. After the last cycle store the test specimens at (50 2) C for at least 24 h. Afterwards, condition the test specimens in the standard atmosphere as defined in EN 23270 (23 2) C and (50 5) %

38、 relative humidity for at least 24 h before carrying out the test. 7 Procedure Carry out the determination at (23 2) C, unless otherwise agreed. Weigh the test specimen to the nearest 0,1 g. Fill the container with deionized water or fresh tap water (potable water) and allow the temperature of the w

39、ater to attain (23 2) C. Support the test specimen on a plastics or metal rack with the maximum possible area of the coated surface under test facing downwards so that this face is 5 mm to 10 mm below the surface of the water and also at least 10 mm above the base of the container. Ensure full wetti

40、ng of the surface, i.e. removal of air bubbles by careful wiping with a clean damp lint free cloth or tissue 10 min after the start of the test. After 24 h remove the test specimen from the water, carefully wipe it dry using absorbent paper, and weigh the test specimen to the nearest 0,1 g. NOTE Dep

41、ending on the time the slope of the curve of water absorption can provide important information about the hygric behaviour of coatings. Therefore, it is recommended to measure the water absorption after 10 min, 30 min, 1 h, 2 h, 3 h, 6 h and 24 h. 8 Expression of results The water transmissibility w

42、, in kilograms per square metres per square root of hours, is determined by the mass increase (in kilograms) divided by the area of the test specimens (in square metres) and by the square root of time (24 h)0,5. The area shall be the area of the testing surface not covered by the overlapping sealing

43、 coating (see 6.3). For the classification according to EN 1062-1 the arithmetic mean value from at least three individual measurements shall be used. 9 Precision 9.1 Repeatability The value below which the absolute difference between two single test results, each the mean of triplicates, obtained o

44、n identical material by one operator in one laboratory within a short interval of time using the DIN EN 1062-3:2008-04 EN 1062-3:2008 (E) 8 standardized test method, can be expected to lie with a 95 % probability, is 10 % (relative to the mean of the two test results). 9.2 Reproducibility The value

45、below which the absolute difference between two single test results, each the mean of triplicates, obtained on identical material by operators in different laboratories using the standardized test method, can be expected to lie with a 95 % probability, is 15 % (relative to the mean of the two test r

46、esults). 10 Test report The test report shall contain at least the following information: a) reference to this document (EN 1062-3:2008); b) all details necessary to identify the product tested; c) number of test specimens (replicates); d) type of coating system, method of application, applied mass,

47、 number of coats, drying time; e) nature of the substrate and dimensions of the test specimens; f) results of the test, as indicated in clause 8 (individual and mean values and classification according to EN 1062-1); g) particular observations; h) any deviation from the test method specified; i) date of the test. DIN EN 1062-3:2008-04