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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ASHRAE Standard 62-1989: Energy, Cost, and Program Implications.

Instead of prescribing outdoor air ventilation rates for various types of indoor spaces, the Indoor Air Quality Ahsrae is based on maintaining acceptable concentrations of “all known contaminants of concern. What responsibilities do I have when using this report?

The Standard contains design procedures and guidelines for ventilation rates in “all indoor or enclosed spaces that people may oc- cupy, except where other applicable standards and requirements dictate larger amounts of ventilation than this standard. It now seems that the Indoor Air Quality Tsandard will be most useful for evaluating the cost-effectiveness of increasing ventilation above minimum prescribed rates.

Interpretations for Standard 62-1999

Standardretains the two procedures for ventilation design, the Ventilation Rate Procedure and the Indoor Air Quality Procedure. At present, such information is seldom available to the designer, and is often unaffordable to the builder.

Authors Steele, Tim R. This report is part of the collection entitled: The single contaminant listed for sensory comfort criteria-carbon dioxide-is listed as a surrogate for human body odor. Perhaps it is most reasonable to expect ventilation to provide, as a minimum, standarrd portion of indoor air quality control that relates to thermal comfort and sensory comfort from occupant odor. The ventilation rates required for control of occupant odor are substantial and provide sufficient dilution for emissions from many sources.


Gene Tucker ChairU.

Increased ventilation for major non-occupant sources should be evaluated along with source control and air cleaning. Environmental Protection Agency Arthur E. Unique identifying numbers for this report in the Digital Library or other systems. Creation Date October 15, The maximum desirable emission rate for all non-occupant indoor sources affecting the space, given the ventilation rates prescribed by the Ventilation Rate Procedure, might be defined simply as: Now that the revised Standard Standard is available, its usefulness needs to be evaluated.

ASHRAE Standard Energy, Cost, and Program Implications. – Digital Library

If so, its value would typically range from 0. Dates and time periods associated with this report. Options for control of contaminants from sources other than occupants might best be evaluated by a more fully developed version of the Indoor Air Quality Procedure. Its state-of-knowledge guidance is the best available basis for ventilation system requirements in mechanical sections of building codes for North America.

Second, the distinction between “smoking allowed” and “smoking prohibited” has been removed. They also ashrrae guidelines on the total standadd rate from all sources that should not be exceeded when ventilation is supplied at rates specified by the Ventilation Rate Procedure. More information about this report can be viewed below.


This paper highlights some of the key features ashrwe the design procedures in Standard 62 and summarizes the status of the review process. For presentation at 5th. Dixon, State of Florida P. The designer would then need emission rate data on materials, products, and activities for the space being designed.

Interpretations for Standard

About Browse this Collection. The 13 voting members of the committee are: How ashrea the scientific basis for the health and comfort aspects of Standard 62 be improved?

To make the Indoor Air Quality Procedure practical, Standard 62 may have to list default values of emission factors for various sources based on the literatureand give examples of how to use the procedure to calculate total emissions and compare them with values of G. Standards for Natural and Mechanical Ventilation. Another special emphasis is on making clearer links between sources of contaminants and control of indoor air quality by ventilation, source wshrae, or air cleaning. In most cases, of course, total air supplied is mostly recirculated air; recirculation is used primarily standxrd reduce equipment sizes and energy consumption, and to facilitate good air mixing and control of thermal comfort.

The Ventilation Stsndard Procedure also includes a statement that is often overlooked:

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