Standard Swedish standard · SS-EN ISO 7933:2023

Ergonomics of the thermal environment - Analytical determination and interpretation of heat stress using calculation of the predicted heat strain (ISO 7933:2023)

Status: Valid

Buy this standard

Standard Swedish standard · SS-EN ISO 7933:2023

Ergonomics of the thermal environment - Analytical determination and interpretation of heat stress using calculation of the predicted heat strain (ISO 7933:2023)
Subscribe on standards - Read more Dölj
Price: 1 257 SEK
standard ikon pdf

PDF

Price: 1 257 SEK
standard ikon

Paper

Price: 2 011,20 SEK
standard ikon pdf + standard ikon

PDF + paper

Show more Show less
Preview this standard
Scope
This document describes a model [the predicted heat strain (PHS) model] for the analytical determination and interpretation of the thermal stress (in terms of water loss and rectal temperature) experienced by an average person in a hot environment and determines the maximum allowable exposure times within which the physiological strain is acceptable for 95 % of the exposed population (the maximum tolerable rectal temperature and the maximum tolerable water loss are not exceeded by 95 % of the exposed people).
The various terms used in this prediction model and, in particular, in the heat balance, show the influence of the different physical parameters of the environment on the thermal stress experienced by the average person. In this way, this document makes it possible to determine which parameter or group of parameters can be changed, and to what extent, in order to reduce the risk of excessive physiological strain.
In its present form, this method of assessment is not applicable to cases where special protective clothing (e.g. fully reflective clothing, active cooling and ventilation, impermeable coveralls) is worn.
This document does not predict the physiological response of an individual person, but only considers average persons in good health and fit for the work they perform. It is therefore intended to be used by, among others, ergonomists and industrial hygienists, as the outcomes can require expert interpretations. Recommendations about how and when to use this model are given in ISO 8025.

Subjects

Thermal environments (12.030) Ergonomics (13.180)


Buy this standard

Standard Swedish standard · SS-EN ISO 7933:2023

Ergonomics of the thermal environment - Analytical determination and interpretation of heat stress using calculation of the predicted heat strain (ISO 7933:2023)
Subscribe on standards - Read more Dölj
Price: 1 257 SEK
standard ikon pdf

PDF

Price: 1 257 SEK
standard ikon

Paper

Price: 2 011,20 SEK
standard ikon pdf + standard ikon

PDF + paper

Show more Show less

Product information

Language: English

Written by: Svenska institutet för standarder

International title:

Article no: STD-80044758

Edition: 2

Approved: 8/14/2023

No of pages: 40

Replaces: SS-EN ISO 7933:2004