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recommended reconfirmation since a project leader to revise the standards was not identified. Subsequently, ISO/TC 43/SC 1 agreed with the WG 28 recommendation after not finding a volunteer to be project leader from all members of SC1 who were present at the TC 43/SC 1 meeting. In my opinion the United States should not vote to revise an International Standard unless it also volunteers a project leader for that revision or supplies text suitable for the revi- sion.
ISO 4871: WG 28 agreed to delete the preliminary work item (PWI) to revise ISO 4871 since no progress has been made. There is interest in the United States to revise this doc- ument; however, there is little interest elsewhere. As soon as a first working draft for revision of ISO 4871 is available a PWI will be reinstated.
ISO 9614-1, -2, and -3: WG 28 sent a questionnaire to its members to obtain information on the application of the sound intensity methods by industries and consultants. The reply date of this questionnaire is January 31, 2013. The dele- tion of these PWIs as requested by the International Organization for Standardization Central Secretariat (ISO/CS) was accepted by WG 28. As soon as a first working draft for revision of the ISO 9614 series is available a PWI will be reinstated.
ISO/TC 43/SC 1/WG 28 next meeting: The next meeting of ISO TC 43/SC 1/WG 28 will be in the second week of March or the second week of April 2013. Another WG 28 meeting will be held six months later in conjunction with INTER-NOISE 2013 in September 2013 in Innsbruck, Austria.
II. ISO TC 43/SC 1/WG 45: Environment Noise
Paul Schomer, who is the convenor of WG 45, Brad Moulton, and I were the United States’ representatives at the meeting. Other countries represented were: Canada, Denmark, France, Germany, Japan, Republic of Korea, Sweden, and the United Kingdom. The standards under dis- cussion included:
• ISO/CD 1996-1 Acoustics—Description, measure- ment and assessment of environmental noise—Part 1: Basic quantities and assessment procedures
• ISO 1996-2 Acoustics—Description, measurement and assessment of environmental noise—Part 2: Determination of environmental noise levels
First ISO/CD 1996-1: WG 45 discussed and resolved comments received on national balloting of the first commit- tee draft (CD1). Major changes include modifications and refinements to the noise exposure curves and adjustments for types of noise sources. Instead of preparing a DIS for ballot, WG 45 agreed to prepare a second CD which will be circu- lated for ballot in early 2013. This second CD will also include uncertainty on the percentage of highly annoyed as a function of sound level.
ISO 1996-2: WG 45 is preparing a revision of ISO 1996- 2. A new work item will be presented to ISO TC 43/SC 1 and a draft is being prepared to accompany that ballot. The revi- sion will include a new engineering grade prominent discrete tone procedure (details below).
several experts in WG 8 not to disband WG 8 to enable the continuation of their work on improvement of ISO 26101:2012.
ISO/CD 6926: Most of the US comments on the draft were either accepted or the rationale for accepting them adequately explained. The major exception was the rejection of the US comment to replace “calibration” with another term. The US comment was in response to the National Institute for Standards and Technology (NIST) National Voluntary Laboratory Accreditation Program (NVLAP) stating that it considers ISO 6926 to be a “calibration” standard (such as IEC standards for microphones and sound level meters) and not a measurement standard, and therefore, labs wishing accredita- tion must comply with ISO 17205 calibration laboratory requirements. It was agreed in WG 28, that the ISO 17205 requirements on calibration laboratories are not applicable to laboratories testing to ISO 6926, and WG 28 agreed to insert a paragraph or note stating this. (Apparently this problem is unique to the US and does not exist in other countries, espe- cially in those countries where only one lab is accredited to test to ISO 6926 and it is also a “calibration” laboratory.)
ISO 3740: WG 28 comments on the first working group draft for the revision of ISO 3740 were briefly discussed in the absence of the project leader, Mr. Hubner from Germany. A detailed discussion will occur at the next meeting of WG 28 in spring 2013, when the project leader and other com- menters will be present.
ISO/DIS 11200: ISO member body comments on the DIS ballot were considered and resolved. The project leader, Mr. Jacques, will prepare a draft Final Draft International Standard (FDIS) for WG 28 review and then submittal to the ISO Secretariat for ballot.
ISO 11201: Jeff Schmitt raised the issue that ISO 11201 permits precision-grade measurement but not an engineer- ing-grade measurement of operator position emission sound pressure level when the major noise source is not line-of- sight to the microphone position. The concern by non-US members of WG 28 is that this could over estimate the emis- sion sound pressure level during verification. The previous version of ISO 11201 permitted this type of measurement but did not allow environmental corrections. WG 28 agreed to consider an amendment with a note clarifying this and to permit such engineering grade measurements.
ISO 11202: Some inconsistencies in ISO 11202, raised by a previous Italian comment with respect to the determination of the local environmental correction K3 and the minimum 1-m distance, were discussed. These could lead to an under- estimation of the emission sound pressure level for large machines or prevent the application of the standard for smaller sound sources. A proposal for an amendment speci- fying relevant requirements for small and large machines will be prepared by Messrs. Stephen Keith of Canada and Hans Jonasson of Sweden by January 31, 2013.
Systematic reviews of ISO 7574-1,-2,-3,-4 and ISO 11689: ISO/TC 43/SC 1 asked WG 28 for recommendation on the ballot for reconfirming these standards. The United States and two other countries voted that these standards should be revised instead of reconfirmed. However, WG 28
34 Acoustics Today, January 2013