This standard establishes a nomenclature of the main quality indicators of overhead projectors included in the technical specifications for research work to determine the prospect
GOST 4.459-1986 Referenced Document
GOST 12.1.003-1983 Occupational safety standards system. Noise. General safety requirements
GOST 14.205-1983 Technological efficiency of products design. Terms and definitions
GOST 23511-1979 Man-made noise from domestic electrical appliances or electrotechnical appliances connected to the electrical mains of dwelling-houses. Limit and measuring methods