Error Retrieving Data. 2010 ASHRAE Ventilation Standard Released - Facilities Management IAQ News
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2010 ASHRAE Ventilation Standard Released

New requirements regarding natural ventilation, exhaust systems and the IAQ procedure are included in the newly published 2010 version of Standard 62.1.

June 2010 - IAQ   Article Use Policy

New requirements regarding natural ventilation, exhaust systems and the IAQ procedure are included in the newly published 2010 version of Standard 62.1.

ANSI/ASHRAE Standard 62.1-2010, Ventilation for Acceptable Indoor Air Quality, sets minimum ventilation rates and other requirements for commercial and institutional buildings.

Among the changes to the 2010 standard are modifications to the Natural Ventilation Rate Procedure, which now requires most buildings designed to meet the natural ventilation requirements also include a mechanical ventilation system designed to meet the Ventilation Rate or IAQ procedures. The mechanical system is to be used when windows are closed due to extreme outdoor temperatures, noise and security concerns.

Another change relocates requirements related to exhaust systems to a new section, clarifying that exhaust requirements apply to all buildings regardless of the procedure used to determine outdoor air intake flow rates, ASHRAE says. 

The IAQ procedure, which allows for the calculation of the amount of outdoor air necessary to maintain the levels of indoor air contaminants below recommended levels, has been made more robust by increasing requirements for using the “similar building” design approach and clarifying other requirements.

The standard also now contains a table of volatile organic compounds to consider as possible contaminants of concern, says ASHRAE, and guidance from the American Conference of Governmental Industrial Hygienists has been included.


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