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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The tabulated values of outdoor air requirements “prescribe supply rates of acceptable outdoor air required for acceptable indoor air quality. This standard is being continually reviewed and updated to reflect new information, especially on public health aspects of indoor air and sources of indoor contaminants.

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

Reports, articles and other documents harvested from the Office of Scientific and Technical Information. The Ventilation Rate Procedure also includes a statement that is often overlooked: For purposes of this Standard, acceptability of indoor air is based on both health and comfort considerations the comfort term refers to sensory rather than thermal comfort.

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 held below recommended limits. 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 Standard also introduced an alternative Indoor Air Quality Procedure to permit innovative, energy-conserving ventilation practices.

Wellford What editorial changes need to be made e. Now that the revised Standard Standard is available, its usefulness needs to be evaluated.

Interpretations for Standard 62-1989

About Browse this Partner. However, it requires knowledge of contaminants that will be present, acceptable concentrations of these contaminants to aahrae health and ensure sensory comfort, and sources of these contaminants.


Creation Date October 15, The Ventilation Rate Procedure prescribes the rate at which ventilation air must be delivered to a space and various means to condition that air.

There is also the approach taken by the European ventilation guidelines. About Browse this Collection. Through its use, it had become evident to Bonneville 62-198 Standard needed interpretation.

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

This Standard is still referenced in many building codes in the United States. Use of the Indoor Air Quality Procedure is very limited at present. Other additions provide opportunities for energy conservation.

This would 6-21989 consistent with the current statement in the Standard that ahrae cases “where unusual indoor contaminants or sources are present or anticipated. 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: The Standards are written under strictly administered rules that define committee size; committee balance among affected parties i.

Daynard, Northeastern University Richard W.

As more information becomes available on sources and their emissions, and the health and standarr effects of those sfandard, use of this procedure may very well increase. It now seems that the Indoor Zshrae Quality Procedure will be most useful for evaluating the cost-effectiveness of increasing ventilation above minimum prescribed rates.

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. Usage Statistics When was this report last used? Progress in these two areas is key to improving the soundness and usefulness of the two design procedures. Second, the distinction between “smoking allowed” and “smoking prohibited” has been removed.

Furthermore, Standard 62 contains very little information on how to use this procedure. Ventilation for Acceptable Indoor Air Quality 5. This report is part of the collection entitled: The ventilation rates in this table are derived from physiological considerations, subjective evaluations, and professional judgements.


Options for control of contaminants from sources other than occupants might best be evaluated by a more fully developed azhrae of the Indoor Air Quality Procedure. The 13 voting members of the committee are: Dixon, State of Florida P. First, the minimum outdoor air flow rate has changed from 2.

Unique identifying numbers for this report in the Digital Library or other systems. Some users of Standard found the application of different ventilation rates for smoking and non-smoking areas confusing, and the recommended maximum concentration wshrae formaldehyde was challenged. Descriptive information to help identify this report.

Ventilation rates are calculated separately for health and perceived air quality; the higher rate is recommended for design. Tables of design values for C, the maximum acceptable concentrations of indoor contaminants or source-related contaminant mixtureswould be necessary. It has been viewed timeswith 7 in the last month.

Authors Steele, Tim R. Energy, Ahrae, and Program Implications. Gene Tucker ChairU. Increased ventilation for major non-occupant sources should be evaluated along with source control and air cleaning.

Samet How can the roles of source control and air cleaning be better integrated into the Standard? People and organizations associated with either the creation of this report or its content. Dates and time periods associated with this report.

Persily Should Standard 62 go beyond design and deal more explicitly with air quality management during all phases of the life of a building?