Artificial intelligence (AI) policy: ASHRAE prohibits the entry of content from any ASHRAE publication or related ASHRAE intellectual property (IP) into any AI tool, including but not limited to ChatGPT. Additionally, creating derivative works of ASHRAE IP using AI is also prohibited without express written permission from ASHRAE.

logoShaping Tomorrow's Built Environment Today

Addenda to Standard 62-2001

Share This

ANSI/ASHRAE 62-2001, Ventilation for Acceptable Indoor Air Quality

NOTE: All documents linked from this page are in pdf_icon.png PDF-format with the exception of the VRP Excel Spreadsheet for Addendum n which is in page-excel-icon.gifExcel-format.

(These descriptions may not be complete and are provided for information only.)

pdf_icon.png Addendum h (Delete the second, fourth, and fifth bullets of Section 6.2. [Note that Section 6.1 in the printed version of Standard 62-2001 was renumbered as Section 6.2 as a result of the publication of addendum 62i. are relevant to the IAQ Procedure and should not be listed under the Ventilation Rate Procedure. The last bullet is overly detailed for this general description of the Ventilation Rate Procedure and is deleted for clarity.])

pdf_icon.png Addendum i (Replaces material in Sections 4 and 6 regarding the use of the IAQ Procedures; Describes situations when the IAQ Procedure can be used.)

pdf_icon.png Addendum k (Deletes the current Section 4 and adds a new Informative Appendix K, Application and Compliance, addressing application of the standard in new and existing buildings.)

pdf_icon.png Addendum n (In Section 3, 'Definitions,' change the name of the term 'occupied zone' and update the reference; Add a definition of zone to Section 3; Delete the current Section 6.1, Ventilation Rate Procedure (currently numbered as Section 6.2 in accordance with addendum 62i, approved in 2002) and replace it; delete the references 7, 20-25 from Section 9; delete the current Appendix E and replace it; delete Appendix G, Rationale for Reducing Outdoor Air When Loads on a Multi-Zone System are Unequal as it is an entirely informative appendix and is no longer referenced in the standard; add a new Appendix G, which is normative.)
page-excel-icon.gif VRP Excel Spreadsheet (Obsolete - This spreadsheet has been superseded by the version that accompanies the 62.1 User’s Manual.)

pdf_icon.png Addendum o (Removes reference to smoking areas from Table 2; Added new Section and informative Appendix I, Guidelines for Ventilation in Smoking-Permitted Areas, that provides design guidance for determining design ventilation rates for spaces where smoking is permitted.)

pdf_icon.png Addendum r (Added a new Section 4, Outdoor Air Quality; Delete Sections 5.9; Replace current Sections 6.1.1 and 6.1.2; Modifies requirements for an assessment of outdoor air quality and requires filtration of the intake air when outdoor particle levels are high.)

pdf_icon.png Addendum t (Replaces the current Section 5.11; Adds new Sections 5.12, 5.13, and 5.14; Clarifies and codifies the requirements related to condensate management, including drain pan design, carryover from cooling coils, and access for inspection and cleaning.)

pdf_icon.png Addendum u (Adds new Section 5.3; Adds requirements related to the control of ventilation systems, including outdoor air intake control in VAV systems.)

pdf_icon.png Addendum v (Revises Section 5.2; Adds requirements to ensure that air-distribution systems are capable of delivering outdoor air to occupied spaces.)

pdf_icon.png Addendum x (Revise Section 5.4; Replace existing Section 5.10; Revise Section 5.11; Add new sections entitled “Building Envelope and Interior Surfaces” and “Buildings with Attached Parking Garages”; Clarifies and adds requirements related to indoor humidity and the building envelope as they relate to potential indoor air quality problems.)

pdf_icon.png Addendum y (This addendum classifies air with respect to contaminant and odor intensity and limits the recirculation of lower-quality air into spaces that contain air of higher quality. It adds two tables and an additional column in the existing Table 2; Adds a new subsection 5.x and renumbers existing sections; Adds a new column, Classification of Air, to the existing Table 2; Adds a new note below Table 2; Adds two new tables to Section 5.x.)

pdf_icon.png Addendum z (Adds a new Section Ozone; Requires cleaning of the intake air when outdoor ozone levels are high.)

pdf_icon.png Addendum aa (Delete the current Section 5.4 completely and replace it with a new Section 5.4. In addition, add new Table 5.2; Add new Appendix X.)

pdf_icon.png Addendum ab (Replaces current Section 5.6; Clarifies existing requirements for control of contaminants from stationary, non-combustion local sources with integrated capture systems.)

pdf_icon.png Addendum ad (Deletes current Appendix A, Conversion Factors; Updates and clarifies Appendix B on contaminant concentration guidelines.)

pdf_icon.png Addendum ae (Adds a definition of 'indoor air', 'cognizant authority' and 'industrial space' in Section 3; Revises several other definitions in Section 3, and updates and corrects a number of other small items, such as the references.)

pdf_icon.png Addendum af (Changes the standard’s purpose and scope in Sections 1 and 2 to clarify its relevance to new and existing buildings, clarifies its coverage of industrial and laboratory spaces, and adds a caveat concerning situations where outdoor air quality may be poor.)