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Additional resources for ASHRAE Standard 62-1999 - Ventilation for Acceptable Indoor Air Quality
The following table, Table I-1, lists each addendum and describes the way in which the text is affected by the change. Table I-2 states the ASHRAE and ANSI approval dates. TABLE I-1 Addenda to ANSI/ASHRAE Standard 62-1989, Changes Identified Addenda to 62-1989 Sections Affected Description of Changes 62a 7 and Appendix C Addendum a revises section 7 by deleting a footnote and by updating references 3-5, 9, 23, 27, 28, 29, and 32. This addendum updates references in Appendix C and also modifies Tables 1 and 3.
2 Indoor Air Quality Procedure, Table 3. HOK Background 1. Clause 3 includes definitions for air, return; air, supply; air, transfer; and air, ventilation. The definition of air, supply is not clear. Question 1. 1) may be composed of both ventilation air and transfer air? ASHRAE Answer 1. Yes. HOK Background 2. 2 including Table 3 appears to be provided as a recommended guideline rather than a mandatory requirement. Question 2. Can the carbon dioxide level in a space ever exceed the referenced value of 1000 ppm, and still remain in compliance with the Standard?
By referring to hotel and office conference rooms and theater auditoriums, his letter opines that the appropriate figure would be between 15 and 20 cfm/person. Dr. McNall characterizes the space as a civil court room, smoking not permitted, with occasional presence of apprehension or excitement. Question: What are ASHRAE’s recommended values for Estimated Maximum Occupancy and Outdoor Air Requirements for civil court rooms? Answer: Estimated Maximum Occupancy: 70 persons/1000 ft2 Outdoor Air Requirement: 15 cfm/person Comments: 1.