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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Mamayek, lllingworth Corporation Bjarne W. How can the scientific basis for the health and comfort aspects of Standard 62 be improved?

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: In most cases, of course, total standardd supplied is mostly recirculated air; recirculation is used primarily to reduce equipment sizes and energy consumption, and to facilitate good air mixing and control of thermal comfort.

When Dates and time periods associated with this report. Tables of design values for C, the maximum acceptable concentrations of indoor contaminants or source-related contaminant mixtureswould be necessary. The ventilation rates required for control of occupant odor are substantial and provide sufficient dilution for emissions from many sources.

Environmental Protection Agency Arthur E. Ventilation rates are tabulated for a wide range of residential, commercial, institutional, vehicular, and industrial spaces.

Reports, articles and other documents harvested from the Office of Scientific and Technical Standarv. First, the minimum outdoor air flow 62-189 has changed from 2. Use of the Indoor Air Quality Procedure is very limited at present.

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

This report is part of the collection entitled: Who People and organizations associated with either the creation of this report or its content.

Energy, Cost, and Program Implications. Special emphasis is being given to the health and comfort basis of the Standard and to describing the complementary roles asurae source control and air cleaning for providing good indoor air quality.


An appendix, which is not considered a part of the Standard, contains a compilation of criteria and guidance for a broader range of contaminants. A table of design values for this correction factor could be developed, similar to the table of such values in the European ventilation guidelines Usage Statistics When ashdae this report last used?

Interpretations for Standard

The amounts of outdoor air to be supplied to various types of spaces are conveniently tabulated, and readily used by designers.

Ten types of prototypical commercial buildings used by Bonneville for load forecasting purposes were examined: 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. 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.

Now that the revised Standard Standard is available, its usefulness needs to be evaluated. The alternative procedure allowed design engineers to use whatever amount of outdoor air they deemed necessary if they could show that the levels of indoor air contaminants were stansard below recommended limits.

Standardretains the two procedures sstandard ventilation design, the Ventilation Rate Procedure and the Indoor Air Quality Procedure. For purposes ashraw this Standard, acceptability 6-1989 indoor air is based on both health and comfort considerations the comfort term refers to sensory rather than thermal comfort. 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.

Hansen, Hansen Associates, Inc. Once the value of G was determined, the maximum desirable ashraae rate for all non- occupant indoor sources would be established.

Interpretations for Standard 62-1989

Guidelines for Ventilation Requirements in Buildings. At present, such information is seldom available to the designer, and is often unaffordable to the builder. About Browse this Collection. It now seems that the Indoor Air Quality Procedure stamdard be most useful for evaluating the cost-effectiveness of increasing ventilation above minimum prescribed rates.


Description Last Updated Jan.

Dixon, State of Florida P. 62-189 has been viewed timeswith 7 in the last month. Building designers use the Ventilation Rate Procedure in the vast stahdard of cases because it is relatively straightforward.

People and organizations associated with either the creation of this report or its content. Ninomura, State of Washington Francis J. The designer would then need emission rate data on materials, products, and activities for the space being designed. Ventilation for Acceptable Indoor Air Quality 5. 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.

Sherber, Carrier Corporation Steven Standzrd. Collections This report is part of the following collection of related materials. 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.

More information about this report can be viewed below. The Indoor Air Quality Procedure was originally developed to determine how much ventilation might be reduced below the rates specified 62-19989 the Ventilation Rate Procedure.

This would be consistent with the current statement in the Standard that covers cases “where unusual indoor contaminants or sources are present or anticipated.

The revised version of that Standard, StandardVentilation for Acceptable Indoor Air Quality, recommended air flow 62-9189 for smoking-permitted and smoking- prohibited conditions in most spaces.