ASHRAE Standard , “Ventilation for Acceptable Indoor Air Quality,” presently defines the “standard of care” to be exercised by. ASHRAE Standard (Standard ) “Ventilation for Acceptable Indoor. Air Quality” is the new heating, ventilating, and air-. One requirement for implementing the ASHRAE Standard ventilation rate procedure is to provide continuous measurement of the.
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Interpretations for Standard 62-1989
The 13 voting members of the committee are: An appendix, which is not considered a part of the Standard, contains a compilation of criteria and guidance for a broader range of contaminants.
As more information becomes available on sources and their emissions, and the health and comfort effects of those emissions, use of this procedure may very well increase.
However, it requires knowledge of contaminants that will be present, acceptable concentrations of these contaminants to protect health and ensure sensory comfort, and sources of these contaminants. Creation Date October 15, Building designers use the Ventilation Rate Procedure in the vast majority of cases because it is relatively straightforward.
Grimsrud, University of Minnesota Shirley J. The foreword of the Standard states: Authors Steele, Tim R. Mamayek, lllingworth Corporation Bjarne W. The Ventilation Rate Procedure also includes a statement that is often overlooked: With further development it could be a very useful design tool for evaluating trade-offs between increased ventilation, source management, and air cleaning as options for achieving occupant health and comfort.
The committee consists of 25 designers, equipment manufacturers, regulators, and researchers.
First, the minimum outdoor ashfae flow rate has changed from 2. The review committee is also committed to simplifying and clarifying the Standard where possible, in response to requests from design engineers and building code officials. Consensus on acceptable concentrations is available for only a very limited number of contaminants, and there are very limited data on emission rates of contaminants from sources.
Guidelines for Ventilation Requirements in Buildings.
ASHRAE Standard Ventilation for Acceptable Indoor Air Quality
The Standard is reviewed every 5 years or less, and updated as needed to incorporate new information or improve its usefulness to building designers and code officials.
Ten types of prototypical commercial buildings used by Bonneville for load forecasting purposes were examined: Ventilation for Acceptable Indoor Air Quality 5. Usage Statistics When was this report last used? Under those guidelines, three design levels are offered for perceived indoor air quality which is similar to sensory comfort, as used in this paper. There is also the approach taken by the European ventilation guidelines. The committee is currently addressing eight issues in preparation for deciding what aspects ahrae the Standard need most attention.
Instead of prescribing outdoor air ventilation rates for various types of indoor spaces, the Indoor Air Quality Procedure is based on maintaining acceptable concentrations of “all known contaminants of concern.
Now that the revised Standard Standard is available, its usefulness needs to be evaluated. Second, the distinction between “smoking allowed” and “smoking prohibited” has been removed. The revised version of that Standard, StandardVentilation for Acceptable Indoor Air Quality, recommended air flow rates for smoking-permitted and smoking- prohibited conditions in most spaces.
This paper highlights some of the key features of the standwrd Standard and summarizes the status of the review process. Environmental Protection Agency Arthur E. Perhaps a useful form of such information would be tables of maximum emission rates from non-occupant indoor sources, for the various contaminants or source emission mixtures of concern. Progress in these two areas is key to improving the soundness and usefulness of the two design procedures.
ASHRAE Standard Energy, Cost, and Program Implications. – Digital Library
Samet How can the roles of source control and air cleaning be better integrated into the Standard? The Standard contains design procedures and guidelines for ventilation rates in “all indoor or enclosed spaces standad people may oc- cupy, except where other applicable standards and requirements asurae larger amounts of ventilation than this standard.
These values have been chosen to control C02 and other contaminants with an adequate margin of safety and to account for health variations among people, varied activity levels, and a moderate amount of smoking. This Standard is still referenced in many building codes in the United States.
ASHRAE Standard 62-1989: Energy, Cost, and Program Implications.
Some users of Standard found the application of different ventilation rates for smoking and non-smoking areas confusing, and the recommended maximum concentration of formaldehyde was challenged.
More information about this report can be viewed below.
They also need guidelines on the total emission rate from all sources that should not be exceeded when ventilation is supplied at rates specified by the Ventilation Rate Procedure. Health-based criteria and guidelines are listed for the following contaminants: Energy conservation was the primary driving force.
stzndard The Standard also introduced an alternative Indoor Air Quality Procedure to permit innovative, energy-conserving ventilation practices. Special emphasis is being given to the health and comfort basis of the Standard and to describing the complementary roles of source control and air cleaning for providing good indoor air quality. Energy, Cost, and Program Implications.