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1、BRITISH STANDARD BS EN 13755:2008 Natural stone test methods Determination of water absorption at atmospheric pressure ICS 73.020; 91.100.15 ? Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 2
2、0:48:14 MDTNo reproduction or networking permitted without license from IHS -,-,- BS EN 13755:2008 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2008 BSI 2008 ISBN 978 0 580 58537 1 National foreword This British Standard is the UK
3、implementation of EN 13755:2008. It supersedes BS EN 13755:2002 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee B/545, Natural stone. A list of organizations represented on this committee can be obtained on request to its secretary. This publication d
4、oes not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments/corrigenda issued since publication DateComments Copyright British Standards Institut
5、ion Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 20:48:14 MDTNo reproduction or networking permitted without license from IHS -,-,- EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13755 April 2008 ICS 73.020; 91.100.15Supers
6、edes EN 13755:2001 English Version Natural stone test methods - Determination of water absorption at atmospheric pressure Mthodes dessai pour pierres naturelles - Dtermination de labsorption deau la pression atmosphrique Prfverfahren fr Naturstein - Bestimmung der Wasseraufnahme unter atmosphrischem
7、 Druck This European Standard was approved by CEN on 28 March 2008. 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 bibliographica
8、l 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 official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN
9、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 Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Ita
10、ly, Latvia, 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-1
11、050 Brussels 2008 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13755:2008: E Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2
12、008 20:48:14 MDTNo reproduction or networking permitted without license from IHS -,-,- EN 13755:2008 (E) 2 Contents Page Foreword3 1 Scope 5 2 Normative references5 3 Principle5 4 Symbols5 5 Apparatus .5 6 Preparation of the specimens 5 6.1 Sampling.5 6.2 Test specimens5 6.3 Drying the specimens .6
13、7 Test procedure.6 8 Expression of results 6 9 Test report7 Bibliography8 BS EN 13755:2008 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 20:48:14 MDTNo reproduction or networking permitted w
14、ithout license from IHS -,-,- EN 13755:2008 (E) 3 Foreword This document (EN 13755:2008) has been prepared by Technical Committee CEN/TC 246 “Natural stones”, the secretariat of which is held by UNI. This European Standard shall be given the status of a national standard, either by publication of an
15、 identical text or by endorsement, at the latest by October 2008, and conflicting national standards shall be withdrawn at the latest by October 2008. 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
16、 held responsible for identifying any or all such patent rights. This document supersedes EN 13755:2001. This European Standard is one of the series of European Standards for tests on natural stone. Test methods for natural stone consist of the following parts: EN 1925, Natural stone test methods De
17、termination of water absorption coefficient by capillarity EN 1926, Natural stone test methods Determination of uniaxial compressive strength EN 1936, Natural stone test methods Determination of real density and apparent density, and of total and open porosity EN 12370, Natural stone test methods De
18、termination of resistance to salt crystallisation EN 12371, Natural stone test methods Determination of frost resistance EN 12372, Natural stone test methods Determination of flexural strength under concentrated load EN 12407, Natural stone test methods Petrographic examination EN 13161, Natural sto
19、ne test methods Determination of flexural strength under constant moment EN 13364, Natural stone test methods Determination of the breaking load at dowel hole EN 13373, Natural stone test methods Determination of geometric characteristics on units EN 13755, Natural stone test methods Determination o
20、f water absorption at atmospheric pressure EN 13919, Natural stone test methods Determination of resistance to ageing by SO2 action in the presence of humidity EN 14066, Natural stone test methods Determination of resistance to ageing by thermal shock EN 14146, Natural stone test methods Determinati
21、on of the dynamic modulus of elasticity (by measuring the fundamental resonance frequency) EN 14147, Natural stone test methods Determination of resistance to ageing by salt mist EN 14157, Natural stone test methods Determination of abrasion resistance EN 14158, Natural stone test methods Determinat
22、ion of rupture energy BS EN 13755:2008 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 20:48:14 MDTNo reproduction or networking permitted without license from IHS -,-,- EN 13755:2008 (E) 4 EN
23、 14205, Natural stone test methods Determination of Knoop hardness EN 14231, Natural stone test methods Determination of the slip resistance by means of the pendulum tester EN 14579, Natural stone test methods Determination of sound speed propagation EN 14580, Natural stone test methods Determinatio
24、n of static elastic modulus EN 14581, Natural stone test methods Determination of linear thermal expansion coefficient According to CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulga
25、ria, 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. BS EN 13755:2008 Copyright Briti
26、sh Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 20:48:14 MDTNo reproduction or networking permitted without license from IHS -,-,- EN 13755:2008 (E) 5 1 Scope This European Standard specifies a method for de
27、termining the water absorption of natural stone see EN 12670 for terminology and EN 12440 for denomination - by immersion in water at atmospheric pressure. 2 Normative references Not applicable. 3 Principle After drying to a constant mass, each specimen is weighed and then immersed in water at atmos
28、pheric pressure for a specified period of time. Determination of the water absorption at atmospheric pressure, expressed as a percentage, by the ratio of the mass of the saturated specimen (obtained at constant mass) to the mass of the dry specimen. 4 Symbols md mass of the dry specimen, in grams; m
29、i successive masses of the specimen during testing, in grams; ms mass of the saturated specimen (after immersion in water until constant mass is reached), in grams; Ab water absorption at atmospheric pressure, expressed as a percentage. 5 Apparatus 5.1 A tank with flat base comprising small non-oxid
30、ising and non-absorbent supports for the specimens. 5.2 A ventilated oven which can maintain a temperature of (70 5) C. 5.3 A weighing instrument with an accuracy of 0,01 g. 6 Preparation of the specimens 6.1 Sampling The sampling is not under the responsibility of the test laboratory except where e
31、specially requested. At least six specimens shall be selected from a homogenous batch. 6.2 Test specimens The test specimens shall have the form of a cylinder, cube or prism (70 5) mm or (50 5) mm and shall be obtained by diamond sawing or coring. Their apparent volume calculated by geometrical meas
32、urements shall be at least 60 ml. In addition, the surface area to volume ratio shall be between 0,08 mm-1 and 0,20 mm-1. BS EN 13755:2008 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 20:48
33、:14 MDTNo reproduction or networking permitted without license from IHS -,-,- EN 13755:2008 (E) 6 NOTE The specimens prepared for the determination of compressive or flexural strength can be used if they satisfy the surface/volume ratio. 6.3 Drying the specimens The test specimens are to be dried to
34、 constant mass at a temperature of (70 5) C. Constant mass is reached when the difference between two successive weighings at an interval of (24 2) h is not greater than 0,1 % of the first of the two masses. The specimens shall be kept in a desiccator until room temperature (20 5) C is attained. 7 T
35、est procedure Weigh the specimens after drying (md) to an accuracy of 0,01 g. Place the specimens in the tank on the supports provided. Each specimen needs to be at least 15 mm from adjacent specimens. Then add tap water at (20 10) C up to half the height of the specimens (time t0). At time t0 + (60
36、 5) min add tap water until the level of the water reaches three-quarter of the height of the specimens. At time t0 + (120 5) min add tap water until the specimens are completely immersed to a depth of (25 5) mm of water. At time t0 + (48 2) h the specimens are taken out of the water, quickly wiped
37、with a damp cloth and then weighed within 1 min to an accuracy of 0,01 g (mi). Immerse the specimens again in water and continue the test. Every (24 2) h the specimens are taken out of the water, quickly wiped with a damp cloth and then weighed within 1 min to an accuracy of 0,01 g. Note the success
38、ive masses of the specimens (mi). Continue the test up to constant mass of the specimens. Constant mass is reached when the difference between two successive weighings is not greater than 0,1 % of the first of the two masses. The result of the last weighing is the mass of the saturated specimen (ms)
39、. 8 Expression of results The water absorption at atmospheric pressure Ab of each specimen is calculated by the equation: 100 d ds b = m mm A The result shall be expressed as a percentage to the nearest 0,1 %. BS EN 13755:2008 Copyright British Standards Institution Provided by IHS under license wit
40、h BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 20:48:14 MDTNo reproduction or networking permitted without license from IHS -,-,- EN 13755:2008 (E) 7 9 Test report The test report shall contain the following information: a) unique identification number of the repo
41、rt; b) the number, title and date of issue of this European Standard, i.e. EN 13755:2008; c) the name and address of the test laboratory and the address where the test was carried out if different from the test laboratory; d) the name and address of the client; e) it is the responsibility of the cli
42、ent to supply the following information: the petrographic name of the stone; the commercial name of the stone; the country and region of extraction; the name of the supplier; the direction of any existing plane of anisotropy (if relevant to the test) to be clearly indicated on the sample or on each
43、specimen by means of two parallel lines; the name of the person or organisation which carried out the sampling; the surface finish of the specimen (if relevant to the test); f) the date of delivery of the sample or of the specimens; g) the date when the specimens were prepared (if relevant) and the
44、date of testing; h) the number of specimens in the sample; i) the dimensions of the specimens; j) for each specimen the water absorption at atmospheric pressure to the nearest 0,1 %; k) the arithmetic mean of the individual values of water absorption at atmospheric pressure expressed to the nearest
45、0,1 %; l) all deviations from the standard and their justification; m) remarks. The test report shall contain the signature(s) and role(s) of the responsible(s) for the testing and the date of issue of the report. It shall also state that the report shall not be partially reproduced without the writ
46、ten consent of the test laboratory. BS EN 13755:2008 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 20:48:14 MDTNo reproduction or networking permitted without license from IHS -,-,- EN 13755
47、:2008 (E) 8 Bibliography 1 EN 12440, Natural stone Denomination criteria 2 EN 12670, Natural stone Terminology BS EN 13755:2008 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 20:48:14 MDTNo reproduction or networking permitted without license from IHS -,-,- blank Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 20:48:14 MDTNo repr
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