Prezentul standard se refer? la determinarea coeficientului de absorb?ie acustic?, a0 ?i a impedan?ei acustice ale materialelor, prin metoda ir,<:erferometrului acustic, probele fiind situate ?n c?mp de unde plane care ac?ioneaz? normal pe suprafa?a probe
STAS 10046/2-1992 history
1992STAS 10046/2-1992 Builiding acoustics. Determination of absorption coefficient and acoustic impedance of materials by sound interferometer method