ASTM C423-99a

Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method (Includes all amendments And changes 8/16/2017).

NORMA vydána dne 10.7.2001

Anglicky -
Online zabezpečené PDF (2043.30 CZK)

Anglicky -

Tištěné (2043.30 CZK)

The information about the standard:

Designation standards: ASTM C423-99a
Note: NEPLATNÁ
Publication date standards: 10.7.2001
The number of pages: 13
Approximate weight : 39 g (0.09 lbs)
Country: American technical standard
Kategorie: Technické normy ASTM

Annotation of standard text ASTM C423-99a :

Keywords:
acoustical, acoustics, decay rate, noise, noise reduction coefficient, reverberation room, ICS Number Code 91.120.20 (Acoustics in buildings. Sound insulation)