Acoustics; polar coordinate papers
€24.39
Normal equal-loudness contours
Measurement of airborne noise emitted by machines; enveloping measuring method
€48.79
High-pass and low-pass filters for electro-acoustical measurements
Measurement of the R. M. S. value in sound system equipment; test methode for measuring devices
Averaging of time-varying sound levels; rating levels
€41.78
Sound carrier for the hearing test using speech in accordance with DIN 45621 (recording 1969)
Measurement of inside noise in railbound vehicles
Measurement of airborne noise emitted by machines; enveloping surface method, compressors, vacuum pumps included (displacement-, turbo- and jet compressors)
€34.30
Measurement of noise emitted by railway-vehicles
Standardized determination of the rating level for noise immissions
Measurement of noise emitted by machines; Explanatory notes on noise emission parameters
Dimensions of plugs for hearing aids
Measurement of airborne noise emitted by machines; enveloping surface method, gear transmisson
Measurement of airborne noise emitted by machines; enveloping surface method, office machines
