1、BS EN 1847:2009ICS 91.100.50NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDFlexible sheets forwaterproofing Plastics and rubbersheets for roofwaterproofing Methods for exposureto liquid chemicals,including waterThis British Standardwas published under theauthor
2、ity of the StandardsPolicy and StrategyCommittee on 30 April2010. BSI 2010ISBN 978 0 580 59213 3Amendments/corrigenda issued since publicationDate CommentsBS EN 1847:2009National forewordThis British Standard is the UK implementation of EN 1847:2009. Itsupersedes BS EN 1847:2001 which is withdrawn.T
3、he UK participation in its preparation was entrusted to TechnicalCommittee B/546, Flexible sheets for waterproofing and water vapourcontrol.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary
4、provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 1847:2009EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1847 December 2009 ICS 91.100.50 Supersedes EN 1847:2001English Version Flexi
5、ble sheets for waterproofing - Plastics and rubber sheets for roof waterproofing - Methods for exposure to liquid chemicals, including water Feuilles souples dtanchit - Feuilles dtanchit de toiture plastiques et lastomres - Mthodes dexposition aux produits chimiques liquides y compris leau Abdichtun
6、gsbahnen - Kunststoff- und Elastomerbahnen fr Dachabdichtungen - Bestimmung der Einwirkung von Flssigchemikalien einschlielich Wasser This European Standard was approved by CEN on 19 October 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the condition
7、s 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 Management Centre or to any CEN member. This European Standard exists in three of
8、ficial 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austr
9、ia, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMI
10、TTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1847:2009: EBS EN 1847:2009EN 1847:200
11、9 (E) 2 Contents Page Foreword 4Introduction 51 Scope 62 Normative references 63 Terms and definitions 64 Principle 65 Apparatus 65.1 Container 65.2 Enclosure 65.3 Thermometer 65.4 Weighing bottle 75.5 Balance 75.6 Ventilated oven 76 Sampling 77 Preparation of test specimens 78 Procedure 78.1 Test l
12、iquids 78.2 Temperature 88.3 Exposure durations 88.4 Immersion procedure 88.4.1 Quantity of test liquid 88.4.2 Positioning of specimens 88.4.3 Rinsing and wiping 98.5 Determination of changes in mass 98.5.1 Test specimen 98.5.2 Initial value 98.5.3 Exposure 98.5.4 Measurement of mass 98.6 Determinat
13、ion of changes in appearance 108.6.1 Test specimen 108.6.2 Exposure 108.6.3 Procedure 108.7 Determination of changes in tensile properties 108.7.1 General 118.7.2 Test specimen 118.7.3 Initial value 118.7.4 Exposure 118.7.5 Follow up test 119 Expression of results 119.1 Changes in mass 119.1.1 Chang
14、e in mass 119.1.2 Change in mass per unit area 129.1.3 Percentage change in mass 129.1.4 Mean value 129.2 Change in appearance 129.3 Changes in physical properties 129.3.1 Change in tensile properties (strength and elongation) 12BS EN 1847:2009EN 1847:2009 (E) 3 9.3.2 Percentage change of measurable
15、 physical property 139.3.3 Documentation of change in property 1310 Test report 1311 General comments 13Annex A (informative) Calibration of apparatus 15A.1 Temperature calibration 15A.2 Ventilation conditions 15Bibliography 16BS EN 1847:2009EN 1847:2009 (E) 4 Foreword This document (EN 1847:2009) h
16、as been prepared by Technical Committee CEN/TC 254 “Flexible sheets for waterproofing”, the secretariat of which is held by BSI. 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 June 2010, and conf
17、licting national standards shall be withdrawn at the latest by June 2010. 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 documen
18、t supersedes EN 1847:2001. 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary
19、, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 1847:2009EN 1847:2009 (E) 5 Introduction This European Standard is intended for characterisation and /or class
20、ification of plastic and rubber sheets as manufactured or supplied before use. This test method relates exclusively to products, or to their components where appropriate, and not to waterproofing membrane systems composed of such products and installed in the works. This test is intended to be used
21、in conjunction with EN 13956, Flexible sheet for waterproofing Plastic and rubber sheets for roof waterproofing Definitions and characteristics. Only testing by immersion of the entire surface of the test specimen is considered. The methods for determination of changes in properties are specified as
22、 follows: a) changes in mass immediately after immersion or after immersion and drying; b) changes in appearance immediately after immersion or after immersion and drying; c) changes in physical properties (changes of tensile properties) immediately after immersion or after immersion and drying. Tes
23、ts immediately after immersion are used when it is required to ascertain the state of the material while still acted upon by the liquid. Tests after immersion and drying are used when it is required to ascertain the state of the material after the liquid, if it is volatile, has been eliminated. BS E
24、N 1847:2009EN 1847:2009 (E) 6 1 Scope This European Standard specifies a method of exposing test specimens of plastic and rubber sheets for roofing, free from all external restraint, to liquid chemicals (including water), and methods for determining the changes in properties resulting from such expo
25、sure. 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) applies. EN 1849-2, Flexible
26、sheets for waterproofing Determination of thickness and mass per unit area Part 2: Plastic and rubber sheets for roof waterproofing EN 12311-2, Flexible sheets for waterproofing Determination of tensile properties Part 2: Plastic and rubber sheets for roof waterproofing EN 13416, Flexible sheets for
27、 waterproofing Bitumen, plastic and rubber sheets for roof waterproofing Rules for sampling EN ISO 175:2000, Plastics Methods of test for the determination of the effects of immersion in liquid chemicals (ISO 175:1999) 3 Terms and definitions For the purposes of this document no additional terms and
28、 definitions are required. 4 Principle Complete immersion of the test specimens in a specified quantity of a test liquid for a specified time and at a specified temperature. Determination of the properties before and after immersion and, if applicable, after drying. In the latter case the determinat
29、ions are made, if possible, one after the other on the same specimens. 5 Apparatus 5.1 Container Beakers of suitable dimensions and fitted with lids (airtight, if necessary, and fitted with condensers in the case of volatile liquids or those which give off vapours). 5.2 Enclosure Enclosure which is
30、thermostatically controlled at the test temperature. 5.3 Thermometer Thermometer of suitable range and accuracy. BS EN 1847:2009EN 1847:2009 (E) 7 5.4 Weighing bottle 5.5 Balance Balance which is accurate to within 0,001 g in the case of specimens of mass equal to or greater than 1 g. 5.6 Ventilated
31、 oven The temperature calibration procedure is described in A.1 and details on the air flow are given in A.2. For drying purposes, the oven shall be controlled at (50 2) C. 6 Sampling Samples shall be taken in accordance with EN 13416. 7 Preparation of test specimens Depending on the proposed test a
32、fter exposure (mass, physical properties) and the nature of the plastic or rubber roof waterproofing sheet, the specimens will be of very diverse shapes and dimensions. For sheets with an inner layer or reinforcement it is recommended to seal the edges of the specimens before immersion in a test liq
33、uid. The number of specimens to be used will be specified by the methods to determine the properties before and after exposure. In the absence of any other instructions, at least three specimens shall be tested. Condition the test specimens, prior to testing, for at least 24 h in a standard atmosphe
34、re of (23 2) C and (50 5) % relative humidity. 8 Procedure 8.1 Test liquids If information is required about the behaviour of the sheet in contact with a specific liquid that liquid shall, wherever possible, be used. The test shall be carried out with defined chemical products, used on their own or
35、as a mixture; the test should be as representative as possible of the effect on the waterproofing sheets. For general evaluations of materials behaviour when exposed to aqueous liquids the specimens shall be stored in aqueous solutions as shown in Table 1 as specified in Table A.1 of EN ISO 175:2000
36、. BS EN 1847:2009EN 1847:2009 (E) 8 Table 1 Standard aqueous solutions Test liquid Notes 1 10 % sodium chloride (NaCl) solution (salt water) 10 % by weight (technically pure) 2 Milk of lime, Ca(OH)2 saturated solution with deposit (technically pure) 3 5 % to 6 % sulfurous acid, H2SO3 5 % to 6 % by w
37、eight (technically pure) If other liquids need to be agreed on for exposure there are listings of laboratory chemicals available, for example EN ISO 175:2000. If necessary a stirrer may be used. 8.2 Temperature The standard immersion temperature is (23 2) C. For other temperatures consult the applic
38、able product standard. The temperature for the determination of changes in properties is (23 2) C. If the immersion temperature is different, bring the specimens to ambient temperature by transferring them into a fresh quantity of test liquid at room temperature for 15 min to 30 min. 8.3 Exposure du
39、rations Any practicable exposure duration, representative of the phenomenon to be evaluated, may be applied. The standard exposure duration for comparison tests is 28 days. For other durations consult the applicable product standard. 8.4 Immersion procedure 8.4.1 Quantity of test liquid The quantity
40、 of test liquid used shall be at least 2500 ml for 1 or more samples with maximum total dimensions of (210 x 295) mm. The test liquid shall completely cover the specimen. 8.4.2 Positioning of specimens Place each set of test specimens in a given container and completely immerse them in the test liqu
41、id (using a weight if necessary). When several materials of the same composition are to be tested, several sets of specimens may be put into the same container. Any contact between different specimens shall be avoided with a minimum distance of 10 mm at the beginning. If light is likely to have infl
42、uence on the action of the test liquid, it is recommended to operate either in darkness or in defined illumination conditions. It is recommended to use closed containers. BS EN 1847:2009EN 1847:2009 (E) 9 8.4.3 Rinsing and wiping Remove the specimens from the test liquid and rinse them with a produc
43、t which has no effect on the material under test and which is chosen to suit the nature of the test liquid. Wipe the specimens dry with filter paper or a lint free cloth. If elevated temperature is used during exposure, at the end of the period of immersion, bring the temperature of the specimens ba
44、ck to ambient temperature if necessary, by transferring them quickly into fresh quantity of test liquid at room temperature, for a period of 15 min to 30 min. 8.5 Determination of changes in mass 8.5.1 Test specimen The test specimen shall have the shape and dimensions specified in EN 1849-2 for the
45、 determination of mass per unit area. Prepare the number of specimens to determine the mass per unit area according to EN 1849-2. If elevated temperature is used during the exposure, prepare additional specimens to serve as a control of any temperature influence. Control of other influences shall re
46、quire additional quantities of specimens. 8.5.2 Initial value Determine the initial mass M1 of each specimen to the nearest 0,001g in the case of specimens of mass greater than or equal to 1 g following EN 1849-2. 8.5.3 Exposure Immerse the test specimens in the test liquid at the chosen temperature
47、 for the chosen period, following the immersion procedure given in 8.4. 8.5.4 Measurement of mass 8.5.4.1 Measurement immediately after immersion (wet) Place each rinsed and wiped specimen in a tared weighing bottle, stopper it and determine the mass M2 to the nearest 0,001 g. If the liquid used for
48、 the test is volatile at ambient temperature, the time during which the specimen is exposed to the air shall not exceed 30 s. If it is necessary to continue the test after weighing (test as a function of time), immediately replace the specimens in the test liquid and put the containers back in the t
49、hermostatically controlled enclosure. 8.5.4.2 Measurement after immersion and drying (dry) Remove the specimens from the weighing bottles and dry them in the ventilated oven, controlled at the specified temperature, for the specified time (usually for (24 1) h at (50 2) C) to constant mass. Allow the specimens to cool and recondition them in accordance with Clause 7 and determine the mass M3 to the nearest 0,001 g of e
