Laboratory experiments were carried out to evaluate and compare search methods and in order to make up a list of user problems. Subjects were presented with questions which were typed on cards and had to be answered with Viditel. Subjects needed four to six minutes for each question and used 2-5 to
Breathing resistance and dead space in respiratory protective devices : National Institute for Occupational Safety and Health The Institute, Cincinnati, Ohio, USA, Report No PB-273 794, Oct 1978, 35 pp; abstr in Health and Safety in Industry
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 62 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0003-6870
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