DIN EN ISO 10551:2002-01

The document covers the construction and use of judgement scales (scales of thermal perception, thermal comfort, thermal preferenz, acceptability expression form and tolerance scale) for use in providing reliable and comparative data on the subjective aspects of thermal comfort or thermal stress. This International Standard recommends subjective judgement scales based on the thermal state of the body. From the point of view of ergonomic practice it is more important to know how the workers feel themselves than to know how they judge the local climate. Thus the present document retains judgements that workers make about their own thermal state as a whole. It distinguishes between perception, present affective assessment (comfort/discomfort) and future preference.