Document Detail

Classification of thermal environments for comfort assessment.
MedLine Citation:
PMID:  19299555     Owner:  NLM     Status:  MEDLINE    
According to ISO 7730:2005, classification is a mandatory precondition for thermal comfort assessment since the appropriate criterion depends on which category the specific work situation (SWS) investigated belongs to. Unfortunately, while the standard does include three different comfort criteria, it does not indicate how the appropriate criterion should be selected. This paper presents a classification scheme that allows thermal comfort assessment to be reliably performed in any environment. The model is based on an algorithm that calculates a score by means of a weighted product of three quantities, each one taking care of a specific, highly relevant element: the subject's thermal sensitivity, the accuracy required for carrying out the task and the practicality of thermal control. The scheme's simple modular structure can easily accommodate both changes and additions, should other hypothetical elements be identified to be as relevant to the classification scheme. The model presented allows a modulation of comfort levels across different social groups. It is so possible to provide extra care for children, elderly, pregnant women, disabled and other 'weak' categories, as required by ISO/TS 14415:2005, by setting the highest comfort level. Finally, it also widens the options for simultaneously establishing comfort conditions for different individuals performing different tasks in the same area and clarifies whose comfort should be pursued with the highest priority.
Paolo Lenzuni; Daniela Freda; Michele Del Gaudio
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Publication Detail:
Type:  Journal Article     Date:  2009-03-19
Journal Detail:
Title:  The Annals of occupational hygiene     Volume:  53     ISSN:  1475-3162     ISO Abbreviation:  Ann Occup Hyg     Publication Date:  2009 Jun 
Date Detail:
Created Date:  2009-06-04     Completed Date:  2009-09-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0203526     Medline TA:  Ann Occup Hyg     Country:  England    
Other Details:
Languages:  eng     Pagination:  325-32     Citation Subset:  IM    
Department of Florence, Italian National Institute for Occupational Prevention and Safety, Via G. LaPira 17, 50121 Firenze, Italy.
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MeSH Terms
Body Temperature*
Environment Design
Environmental Exposure*
Models, Biological
Occupational Exposure
Risk Assessment / methods
Temperature Sense / physiology
Workplace / classification

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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