Answer :
Final answer:
OSHA is the standards organization that determines sound levels for mechanical systems in buildings, recommending a maximum of 85 dB for 8-hour daily exposures without hearing protection.
Explanation:
The standards organization that determines sound levels for mechanical systems in buildings is OSHA (Occupational Safety and Health Administration). OSHA adopts regulations based on guidelines set by certain standards organizations and is granted the authority to promulgate standards for workplace safety. It goes through an extensive rulemaking process which includes substantial public engagement, notice, and comment.
One of the key standards set by OSHA pertaining to sound levels involves a recommended maximum of 85 dB for 8-hour daily exposures without the use of hearing protection. This standard is also recommended by several other government agencies and health-related professional associations.
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