EN ISO 11821-1997, EQV*NF S31-650(1997/AFNOR), EQV*NF EN ISO 11821(1997/AFNOR), EQV*DIN EN ISO 11821-1997, EQV*BS EN ISO 11821(1997/BSI), EQV IEC 60651-1979*IEC 60804-1985*IEC 60942-1988*ISO 1260-1995
Ключевые слова:
ACOUSTIC MEASUREMENT ACOUSTICS DEFINITIONS FIELD TESTING IN SITU NOISE NOISE ABATEMENT NOISE REDUCTION SCREENS (PARTITIONS) TESTS