Noise Control ME- Building Group

SECTION 230720 – NOISE CONTROL

PART 1 - GENERAL

1.1  SUMMARY

  1. This section defines the acceptable limits for noise generated by equipment supplied to Owner.

1.2  REFERENCES

  1. Industry Standards and Specifications
  2. ANSI: ANSI Standard S1.11 (2004) – Specification for Octave, Half-Octave, and Third Octave Band Filter Sets.
  3. ANSI: ANSI Standard S12.1 – Guidelines for the Preparation of Standard Procedures to Determine Noise Emission from Sources.
  4. ANSI: ANSI Standard S1.4 – General Purpose Sound Level Meters.
  5. Compressed Air and Gas Institute for Measurement of Sound from Pneumatic Equipment.
  6. IEEE: Institute of Electrical and Electronic Engineers IEEE-85 “Test Procedure for Airborne Sound Measurements on Rotating Electric Machinery.”
  7. NMTBA: National Machine Tool Builders Association (NMTBA) – Noise Measurement Techniques.
  8. Chrysler Standards
  9. Chrysler Sound Level Specification for Industrial Machinery and Equipment.

1.3  QUALITY ASSURANCE

  1. Sound pressure levels shall not exceed 80 dBA as measured 1 meter from any point of the equipment by a sound meter in accordance with ANSI Standards S1.4 “General Purpose Sound Level Meters” set to “A” weighting and slow response.
  2. Sound data shall be submitted as required in other sections of this specification, and shall constitute a predicted level for the equipment when completed in accordance with referenced standards. Data shall comply with the requirements of Chrysler Sound Level Specification for Industrial Machinery and Equipment.
  3. Noise measurements shall be the responsibility of the manufacturer. Actual noise levels shall be submitted on request to the Owner. Certification of the measurements shall be available upon request. An octave band analysis, when required, shall be made with a filter set conforming to ANSI S1.11-2004.
  4. Measurement Techniques
  5. General Equipment and machinery and oil mist units and dust collection units except compressors, ducted and non-ducted fans, and electric motors
  6. Measurements, instrumentation, and reporting of data shall be in accordance with NMTBA noise measurement techniques.
  7. Electric Motors
  8. Measurements, instrumentation, and recording of data shall be in accordance with IEEE 85 and ANSI S12.1.
  9. Electric motors, 1800 rpm or less, on frames 405 or smaller shall have noise levels of 85 dBA or less.
  10. Electric motors, 1800 rpm or less, on frames 444 and 445 shall have noise levels of 88 dBA or less.
  11. Inability to Comply With Requirements
  12. Clearly state in writing any exceptions regarding the ability to comply with this section.
  13. If noise level requirements cannot be met, manufacturer shall investigate known resources.
  14. Demonstrate in writing that all engineering solutions have been fully explored with unsuccessful results. Provide Owner with complete octave band analysis, together with identification of probable noise sources. Data shall include readings at each noise test point for each load condition along with the noise level duration per work cycle. Data shall be insufficient detail to permit calculations of equivalent daily exposures.
  15. Obtain written permission from the Owner to ship any unit covered in this section that will operate above the specified noise limitations.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION (Not Used)

END OF SECTION

Page 1 of 2

Revision Date: 01/21/14 Project & Bid Package

File name: 230720 NOISE CONTROL