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ASHRAE STD 62.1

Ventilation and Acceptable Indoor Air Quality

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Organization: ASHRAE
Publication Date: 1 February 2020
Status: active
Page Count: 4

Document History

October 19, 2021
Ventilation for Acceptable Indoor Air Quality
FOREWORD The Indoor Air Quality Procedure (IAQP) has a long history going back to the 1981 standard. It has flexibility. For design, it requires the following (simplified version): 1. Identifying...
September 30, 2021
Ventilation for Acceptable Indoor Air Quality
FOREWORD Residential occupancies that are four (4) stories or more were removed from Standard 62.1 with the 2016 version. Some spaces within these buildings, such as common corridors, lobbies, etc.,...
June 30, 2021
Ventilation for Acceptable Indoor Air Quality
FOREWORD The language of Section 5.10, “Maximum Indoor Air Dew Point in Mechanically Cooled Buildings,” has been interpreted by users to mean that the standard requires humidity sensors in every...
June 24, 2021
VENTILATION FOR ACCEPTABLE INDOOR AIR QUALITY
A description is not available for this item.
June 15, 2021
Ventilation for Acceptable Indoor Air Quality
A description is not available for this item.
January 27, 2021
Ventilation for Acceptable Indoor Air Quality
FOREWORD Addendum a clarifies that air density adjustments are permitted but are not required. At the publication of ANSI/ASHRAE Standard 62.1-2016, General Notes for Table 6.2.2.1, Note 3 was...
January 19, 2021
VENTILATION FOR ACCEPTABLE INDOOR AIR QUALITY
A description is not available for this item.
December 1, 2020
Ventilation for Acceptable Indoor Air Quality
A description is not available for this item.
November 19, 2020
VENTILATION FOR ACCEPTABLE INDOOR AIR QUALITY
A description is not available for this item.
November 19, 2020
Ventilation for Acceptable Indoor Air Quality
A description is not available for this item.
October 30, 2020
Ventilation for Acceptable Indoor Air Quality
FOREWORD Addendum d clarifies that open-circuit cooling towers, closed-circuit cooling towers, and evaporative condensers are all covered by the minimum separation distance requirements. Note: In...
October 30, 2020
Ventilation for Acceptable Indoor Air Quality
FOREWORD Unresolved objectors to Standard 62.1-2016 Addendum s noted that the definition for “unusual source” is unclear in distinguishing whether “rarely” refers to a source that is intermittent or...
April 17, 2020
Ventilation for Acceptable Indoor Air Quality
A description is not available for this item.
ASHRAE STD 62.1
February 1, 2020
Ventilation and Acceptable Indoor Air Quality
A description is not available for this item.
October 16, 2019
Ventilation and Acceptable Indoor Air Quality
A description is not available for this item.
October 16, 2019
Ventilation and Acceptable Indoor Air Quality
A description is not available for this item.
June 26, 2019
Ventilation for Acceptable Indoor Air Quality
FOREWORD This addendum adds a reference to ASHRAE/ASHE Standard 170 and an exception to direct users to use the ventilation rates in ASHRAE/ASHE Standard 170 for asepsis and odor control for health...
June 26, 2019
Ventilation for Acceptable Indoor Air Quality
FOREWORD The 2018 Facility Guidelines Institute (FGI) Guidelines for Design and Construction of Outpatient Facilities require certain outpatient spaces to meet local ventilation codes and not...
June 26, 2019
Ventilation for Acceptable Indoor Air Quality
FOREWORD Table 6.2.2.1, “Minimum Ventilation Rates in Breathing Zone,” includes educational space types, including “Classroom (age 9 plus)” and “Lecture classroom.” The first of these does not have...
June 26, 2019
Ventilation for Acceptable Indoor Air Quality
FOREWORD The 60°F (15°C) indoor-air dew-point limit avoids the microbial growth problems frequently observed when humid outdoor air infiltrates into buildings that are mechanically cooled. Microbial...
June 26, 2019
Ventilation for Acceptable Indoor Air Quality
FOREWORD The Natural Ventilation Procedure was recently modified to require mechanical ventilation with certain exceptions. Addendum l provides specific requirements for the exceptions by providing...
June 26, 2019
Ventilation for Acceptable Indoor Air Quality
A description is not available for this item.
June 26, 2019
Ventilation for Acceptable Indoor Air Quality
FOREWORD Table 6.5, “Minimum Exhaust Rates,” lists minimum exhaust rates for certain spaces in which contaminant generation has been deemed high enough that the contaminant cannot be diluted and...
June 23, 2019
VENTILATION FOR ACCEPTABLE INDOOR AIR QUALITY
A description is not available for this item.
June 22, 2019
Ventilation for Acceptable Indoor Air Quality
FOREWORD The current standard is silent on producing ozone within HVAC equipment. In some countries, ozone generators are accepted as air cleaners. In a recent poll of members of SSPC62.1, only 2%...
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