UNE-EN ISO 7933:2005
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Ergonomics of the thermal environment - Analytical determination and interpretation of heat stress using calculation of the predicted heat strain (ISO 7933:2004)
Hardcopy , PDF
01-11-2023
Spanish, Castilian, English
04-05-2005
Foreword
Introduction
1 Scope
2 Normative references
3 Symbols
4 Principles of the method of evaluation
5 Main steps of the calculation
5.1 General heat balance equation
5.2 Calculation of the required evaporative heat flow,
the required skin wettedness and the required sweat
rate
6 Interpretation of required sweat rate
6.1 Basis of the method of interpretation
6.2 Analysis of the work situation
6.3 Determination of maximum allowable exposure time
(D[lim])
6.4 Organization of work in the heat
Annex A (normative) Data necessary for the computation of
thermal balance
Annex B (informative) Criteria for estimating acceptable
exposure time in a hot work environment
Annex C (informative) Metabolic rate
Annex D (informative) Clothing thermal characteristics
Annex E (informative) Computer programme for the computation
of the Predicted Heat Strain Model
Annex F (normative) Examples of the Predicted Heat Strain
Model computations
Bibliography
Important note : All end users must be registered with an Account prior to user licenses being assigned.Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.