1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Declaration of uncertainties in test reportsPD CEN/TR 16961:2018TECHNICAL REPORT RAPPORT TECHNIQUE TECHNISCHER BERICHT CEN/TR 16961 May 2018 ICS 91.120.20 English Version Declaration of uncertainties in test reports Dcl
2、aration des incertitudes dans les rapports dessai This Technical Report was approved by CEN on 20 February 2018. It has been drawn up by the Technical Committee CEN/TC 126. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
3、 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 United Kingdom. EUROPEAN COMMITTEE FOR
4、STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. CEN/TR 16961:2018 ENational forewo
5、rdThis Published Document is the UK implementation of CEN/TR 16961:2018.The UK participation in its preparation was entrusted to Technical Committee EH/1/6, Building acoustics.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not
6、purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 92490 3ICS 91.120.20Compliance with a British Standard cannot confer immunity from legal obli
7、gations. This Published Document was published under the authority of the Standards Policy and Strategy Committee on 30 June 2018.Amendments/corrigenda issued since publicationDate Text affectedPUBLISHED DOCUMENTPD CEN/TR 16961:2018TECHNICAL REPORT RAPPORT TECHNIQUE TECHNISCHER BERICHT CEN/TR 16961
8、May 2018 ICS 91.120.20 English Version Declaration of uncertainties in test reports Dclaration des incertitudes dans les rapports dessai This Technical Report was approved by CEN on 20 February 2018. It has been drawn up by the Technical Committee CEN/TC 126. CEN members are the national standards b
9、odies 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, Serbia, Slovakia, S
10、lovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means r
11、eserved worldwide for CEN national Members. Ref. No. CEN/TR 16961:2018 EPD CEN/TR 16961:2018CEN/TR 16961:2018 (E) 2 Contents Page European foreword 3 1 Scope 4 2 Normative references 4 3 Airborne sound insulation 4 Bibliography . 6 PD CEN/TR 16961:2018CEN/TR 16961:2018 (E) 3 European foreword This d
12、ocument (CEN/TR 16961:2018) has been prepared by Technical Committee CEN/TC 126 “Acoustic properties of building elements and of buildings”, the secretariat of which is held by AFNOR. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights
13、. CEN shall not be held responsible for identifying any or all such patent rights. PD CEN/TR 16961:2018CEN/TR 16961:2018 (E) 4 1 Scope The purpose of this document is to indicate how to present the uncertainty data determined by EN ISO 12999-1 in a laboratory test report of the Sound reduction index
14、 R of a building product or a building system, determined in accordance with EN ISO 717-1 and EN ISO 10140-2:2010, Figure B.1. It is planned to include this information in EN ISO 10140-2. 2 Normative references The following documents are referred to in the text in such a way that some or all of the
15、ir content constitutes requirements 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 ISO 12999-1, Acoustics Determination and application of measurement uncertainties i
16、n building acoustics Part 1: Sound insulation (ISO 12999-1) EN ISO 717-1, Acoustics Rating of sound insulation in buildings and of building elements Part 1: Airborne sound insulation (ISO 717-1) EN ISO 10140-2:2010, Acoustics Laboratory measurement of sound insulation of building elements Part 2: Me
17、asurement of airborne sound insulation (ISO 10140-2:2010) EN 16703, Acoustics Test code for drywall systems of plasterboard with steel studs Airborne sound insulation EN 12758, Glass in building Glazing and airborne sound insulation Product descriptions and determination of properties 3 Airborne sou
18、nd insulation In conjunction with EN ISO 12999-1, R1 shall be used in the absence of uncertainty data for a specific class of specimen, e.g. from an inter-laboratory test or test codes such as EN 16703 and EN 12758. Ris the average of standard deviations of many round robins, each of them dealing wi
19、th a different class of specimen. So for some classes of specimen, value is higher than R.It is asked to check if this could be the case by using available data for the class of specimen tested. If no data are available, a warning shall be set. Rdata are stated in Table 1. PD CEN/TR 16961:2018CEN/TR
20、 16961:2018 (E) 5 Table 1 Standard uncertainties for single-number values in accordance with EN IS0 12999-1 and with EN ISO 717-1 Descriptor RRw 1,2 Rw+ C 1,3 Rw+ Ctr1,5 Rw+ C100-50001,3 Rw+ C50-31501,3 Rw+ C50-50001,3 Rw+ Ctr,100-50001,5 Rw+ Ctr,50-31501,5 Rw+ Ctr,50-50001,5 In case of existence of
21、 uncertainty data for the tested specimen, these data shall be used. For declaration in test reports of products or system data, two sided intervals shall be used. It is recommended to use k = 2. NOTE k = 2, two sided intervals correspond to a confidence level close to 95 %. EXAMPLE In the absence o
22、f uncertainty data for a product, the airborne sound insulation of this product will be designated as: Rw(C;Ctr) = 33(-2; -5) dB; Rw = (33,2 2,4) dB (k = 2,two-sided); Rw+C = (31,3 2,6) dB (k = 2,two-sided); Rw+Ctr = (28,3 3,0) dB (k = 2,two-sided). In the absence of uncertainty data for the class o
23、f specimen tested, the following statement should be added: WARNING Due to the absence of knowledge of the uncertainty data for the class of specimen tested, the confidence level may be lower. PD CEN/TR 16961:2018CEN/TR 16961:2018 (E) 6 Bibliography 1 EN ISO 12999-1, Acoustics Determination and appl
24、ication of measurement uncertainties in building acoustics Part 1: Sound insulation (ISO 12999-1) 2 WITTSTOCK E. Determination of Measurement Uncertainties in Building Acoustics by Interlaboratory Tests. Part 1: Airborne Sound Insulation. Acta Acustica (Les Ulis). 2015, 101 pp. 8898 3 C. Scrosati, A
25、. Pievatolo, M. Garai, The Uncertainty Declaration of Building Acoustics Measurements: How to select the Uncertainty of Reproducibility from Inter-laboratory Tests Acta Acustica united with Acustica 2018, 104, pp. 295-303 PD CEN/TR 16961:2018This page deliberately left blankThis page deliberately le
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