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B W Olesen

Publications and source records attributed to B W Olesen.

5 recordsLinked to original sources

International standards for the indoor environment.

UNLABELLED: On the international level, International Organization for Standardization (ISO), European Committee for Standardization (CEN) and American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) are writing and reviewing standards relating to the indoor environment on a regular basis. This presentation will focus on the development of standards for the indoor thermal environment and indoor air quality (ventilation). In the future, recommendations for acceptable indoor environments will be specified as classes. This allows for national differences in the requirements as well as for designing buildings for different quality levels. Several of these standards have been developed mainly by experts from Europe, North America and Japan. Are there, however, special considerations relating to South-East Asia (lifestyle, outdoor climate, economy) that are not dealt with in these standards and that will require the revision of existing standards? Critical issues are: adaptation, the effect of increased air velocity, humidity, type of indoor pollutant sources, etc. This paper will present an overview of existing methods, and discuss areas where revision of present standards or the development of new standards, are needed. PRACTICAL IMPLICATIONS: The international standards for the indoor environment provide the designer with criteria, which are internationally recognized, for the design of buildings and systems.

Air Pollution, Indoor↗

International standards and the ergonomics of the thermal environment.

The main purpose for heating and air conditioning of workspaces is to provide an environment that is acceptable and does not impair the health and performance of the occupants. Owing to production processes and external climate it may be necessary to work in unacceptable conditions for limited time periods. However, it must be ensured that these conditions do not impair the health of the employees. To do that, standard methods are needed so that different solutions and evaluations of the thermal environment can be done in a comparable way. The standards presented in the present paper include evaluation methods for moderate, hot, and cold environments, supporting standards for measuring and determination of the relevant parameters, and standards for measurement and evaluation of individual physiological conditions of humans.

Journal Article↗

Standards for moderate thermal environments.

Recently two Draft International Standards dealing with specifications of the conditions for thermal comfort (ISO DIS 7730) and measurement procedures (ISO DIS 7726) have been approved by the International Stadardisation Organisation (ISO). The American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) has made a standard with similar requirements for the thermal environment (ASHRAE, 1981). To verify the requirements, measurements of different thermal parameters have to be performed. Guidelines as to how and where to measure are also given in the standards. The present paper deals mainly with the requirements and measurements that are relevant for moderate thermal environments in places of residence, offices, hospitals and light industry. For evaluation of very hot or very cold surroundings, other methods are required. Only measurements of parameters that influence the perception of the thermal surroundings are included.

Journal Article↗