The vote closed on the date indicated above. Please attach the results of voting to this form as annex A.

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Form 13: Report of voting on ISO/DIS ISO/DIS 20145 Closing date of voting: 2017-09-12 ISO/TC 131/SC 5 N 813 Secretariat: AFNOR A report shall be returned to ISO/CS no later than 3 months after the

1 Form 13: Report of voting on ISO/DIS ISO/DIS Closing date of voting: ISO/TC 131/SC 5 N 813 Secretariat: AFNOR A report shall be returned to ISO/CS no later than 3 months after the closing date of voting on the DIS. 1. Result of the voting The above-mentioned document was circulated to member bodies with a request that the ISO Central Secretariat be informed whether or not member bodies were in favour of registration of the DIS for publication. The vote closed on the date indicated above. Please attach the results of voting to this form as annex A. 2. Comments received 3. Observations of the secretariat Please attach as annex B (if appropriate) 4. Decision of the Chairman FORM 13 Report of voting on ISO/DIS Version 01/ of 4

2 Where the approval criteria are met: A revised text is to be submitted to ISO/CS for publication (there have been no technical changes made to the DIS draft) A revised text is to be submitted to ISO/CS for the approval procedure, FDIS (there are technical changes to be made) Where the approval criteria are not met: A revised text is to be submitted to ISO/CS for a further enquiry (DIS) vote The project is to revert to the Committee Stage (a new committee draft will be developed) The enquiry draft and comments will be discussed at the next meeting Remarks: Enclosed: Annex A Annex B (DIS results from ISO electronic balloting portal) (comments received with observations of the secretariat) Date: Signature of TC/SC Secretary: Verneyre, Vincent M. Signature of Chair: Sallaz Christophe M. FORM 13 Report of voting on ISO/DIS Version 01/ of 4

3 Ballot Information Reference ISO/DIS Committee ISO/TC 131/SC 5 Edition number 1 English title French title Pneumatic fluid power -- Test methods for measuring acoustic emission pressure levels of exhaust silencers Transmissions pneumatiques -- Méthode d'essai de mesurage du niveau de pression d'émission acoustique des silencieux d'échappement Start date End date Opened on :04:46 Closed on :03:24 Status Closed Voting stage Enquiry Version number 1 Note Result of voting P-Members voting: 11 in favour out of 11 = 100 % (requirement >= 66.66%) (P-Members having abstained are not counted in this vote.) Member bodies voting: 0 negative votes out of 12 = 0 % (requirement <= 25%) Approved Votes by members Country Member Status Approval Disapproval Abstention Australia SA O-Member X Brazil ABNT P-Member X China SAC P-Member X France AFNOR Secretariat X * Germany DIN P-Member X * India BIS P-Member X Italy UNI P-Member X Japan JISC P-Member X * Netherlands NEN P-Member X Norway SN X * Poland PKN P-Member X Russian Federation GOST R P-Member X 3 of 4

4 Sweden SIS O-Member X United Kingdom BSI P-Member X United States ANSI P-Member X * P-Member TOTALS Total of P-Members voting: TOTALS (*) A comment file was submitted with this vote Comments from Voters France AFNOR Secretariat Germany DIN P-Member Japan JISC P-Member Norway SN United States ANSI P-Member 4 of 4

5 Template for comments and secretariat observations Date: Document: Project: ISO/DIS MB/ NC 1 Line number Clause/ Subclause Paragraph/ Figure/Table Type of Comments Proposed change Observations of the comment 2 secretariat JP Equation (2) ge In ISO1996-1:2016, the equation of equivalent continuous sound pressure level (A weighted) is written as follows; The symbol p 2 (t) in equation (2) should be changed to p 2 A(t) in the same way as ISO1996-1:2016., and modify unit to db(a) US ed A space should be added to K 2Aterm to separate the two. Change K 2Aterm to K 2A term te the test bench shall be in accordance with ISO (steady state mode) or ISO (discharge mode) Up to now, it is not really proved that the discharge mode gives comparable results for sound pressure level values. To be discussed in the working group. in principle, add a Note, "NOTE : Relevant for the comparison of the sound emission is the pressure and the flow rate (flow rate is in this case a functional value to ensure that silencer fits to the application). Therefore, it is recommended to use the test bench from ISO if possible as the measured flow rate is based on a stable pressure. If part 2 is chosen, the values of pressure and flow change significantly within the test due to the nature of the discharge method. Therefore, the value of the flow rate shows a wider tolerance range." NO te It is written one or three measurement points. Use of only one measurement position seems to be insufficient. Reconsider the number of measuring positions. Not accepted, single point measurement has been chosen to optimize the result (see paper in DE ). Using 1 measurement point increase the uncertainty by 2.5 db (see D 2). 1 MB = Member body / NC = National Committee (enter the ISO 3166 two-letter country code, e.g. CN for China; comments from the ISO/CS editing unit are identified by **) 2 Type of comment: ge = general te = technical ed = editorial Page 1 of 4

6 Template for comments and secretariat observations Date: Document: Project: ISO/DIS MB/ NC 1 Line number Clause/ Subclause Paragraph/ Figure/Table Type of Comments Proposed change Observations of the comment 2 secretariat JP ge In the 2 nd line, it is written at 1m from the centre of the end of the pressure measurement tube. But, Figure 1 and Figure 2 show the end of the transition connector is the origin of the sound source. It should be changed to at 1m from the centre of the end of the transition connector. JP ge It is written In this case, sound pressures shall be measured at three positions distributed around the arc of a circle 1m in diameter. It should be changed to the arc of a circle 1m in radius.. But, this means the distance between the silencer and the microphone is 0.5m te CEI Check whether designation and standard is correct., change to IEC NO te A reference to ISO should be added in connection to the wording "covered by absorbent material of class A". It should also be specified when "the walls or ceiling are at least 2 m from a microphone", not when these elements are close te "If the device under test is not able to withstand a pressure of 6.3 bar, the test shall be performed at the maximum pressure specified by the manufacturer and additional scanning from 3 to the maximum pressure with 1 bar step is recommended." Add the reference and reconsider the wording. Change 3 into minimum, add " covered by absorbent material of class A according to ISO 11654" and " If the distance between the walls and the microphone is less than 2 m, they shall be covered" It s not clear why scanning from 3 to the maximum pressure. It should be synchronized to the first clause (start at minimum pressure). JP ge In the 3 rd line, it is written The acoustic It should be changed to 30s., change to "The 1 MB = Member body / NC = National Committee (enter the ISO 3166 two-letter country code, e.g. CN for China; comments from the ISO/CS editing unit are identified by **) 2 Type of comment: ge = general te = technical ed = editorial Page 2 of 4

7 Template for comments and secretariat observations Date: Document: Project: ISO/DIS MB/ NC 1 Line number Clause/ Subclause Paragraph/ Figure/Table Type of Comments Proposed change Observations of the comment 2 secretariat 010 measurement shall be made at least 30 ms after opening the valve. But, 30ms is too short. acoustic measurement shall be started at least 30 ms after opening the valve te If possible, new silencers should be chosen. Due to influence of contamination new silencers shall be chosen. Delete if possible JP ge In the 3 rd line, it is written The raw result of the measurement shall be LAeq. (For a sample j,. The parenthesis ( should be erased. But, the parenthesis ( is not necessary. JP ge In the 3 rd line from the bottom of clause 6.4, it is written LAeq,i is the A-weighted emission acoustic pressure averaged over 3 measurement points. It should be corrected to LAeq,j., and check in the whole document replace i by j as index But, LAeq,i is not correct. JP Equation (3) and (6) ge 10lg( ) is written in the equation. They should be changed to 10log( ) in the same way as the other equations. JP te In case of measurement in steady-state mode, ΔL 3dB is acceptable. But, in case of measurement in discharge mode, ΔL>6dB. ΔL is different depending on the measurement method. Both ΔL should be more than 6dB as written ISO3744 or ISO ΔL 6dB K 1 <1.3 When ΔL is 3dB, K1 is 3.0. This is quite a large value., Modify to: "If possible, each correction should be applied to each time step, then the rules defined in steady state case are applied If not possible (this treatment can be difficult to implement) the correction of K1A shall be omitted by limiting the range of analysis.." JP ge It is written 7.1 Information in the test support. It should be changed to 7.1 Information in the test report title ge "Information to be written in the test support" Change support into report 1 MB = Member body / NC = National Committee (enter the ISO 3166 two-letter country code, e.g. CN for China; comments from the ISO/CS editing unit are identified by **) 2 Type of comment: ge = general te = technical ed = editorial Page 3 of 4

8 Template for comments and secretariat observations Date: Document: Project: ISO/DIS MB/ NC 1 Line number Clause/ Subclause Paragraph/ Figure/Table Type of Comments Proposed change Observations of the comment 2 secretariat 017 FR Table 1 ed French version only Traduction incomplète en français Modifier «weighted acoustic pressure level par: niveau de pression acoustique pondérée US 019 2, 5.05 ed The standard English acronym for the International Electrotechnical Commission is IEC. Pages 1 and 5 each have three occurrences of CEI. Change the acronym CEI to IEC in 6 places. JP Annex ed Japanese proposal N327 is not included. Japanese proposal N327 should be added for a normative annex. in principle, but Annex proposal to be addressed in a separate document (amendment) JP Annex A A.1 ge In the description of α, V in SV is capitalized. V should be changed to lower case. JP US 023 Annex A Note ge It is written The value of the environment correction can also be determined according to the methods specified in ISO But, the same methods are described in ISO 3744 as the methods in this Annex A. So, it is not clear what this description means. The concrete methods should be specified in this Annex A. C.1 ed The word Ambiant should be spelled Ambient. Change Ambiant temperature to Ambient temperature. Not accepted, the most relevant method taken from ISO 3744 has be chosen to be included in the annex, to allow this standard to be standalone. NO 024 General comment te There is no information about how much the exhaust silencers do damp, only how much noise these emit. Consider adding noise reduction information. in principle, see JP FR 025 Sommaire ed French version only En première ligne de la page III il y a un espace à supprimer sur le «de» A.3 Détermination de l'aire d'absorption équivalente A par mesurage d e la durée de réverbération..13 NO 026 Terms Units in general te Use of the unit dba is not correct, only db. The type of weighting applied is to be given in the symbol. Cf. basic standards for acoustics ISO and ISO/TR Correct the unit throughout the document., shall be written db(a) as most of Acoustics standards. 1 MB = Member body / NC = National Committee (enter the ISO 3166 two-letter country code, e.g. CN for China; comments from the ISO/CS editing unit are identified by **) 2 Type of comment: ge = general te = technical ed = editorial Page 4 of 4

Reference ISO/IEC FDIS (Ed 2) Committee ISO/IEC JTC 1/SC 35 Edition number 2

Reference ISO/IEC FDIS (Ed 2) Committee ISO/IEC JTC 1/SC 35 Edition number 2 Ballot Information Reference ISO/IEC FDIS 15897 (Ed 2) Committee ISO/IEC JTC 1/SC 35 Edition number 2 English title French title Information technology -- User interfaces -- Procedures for the registration