ASTM-E413 › Classification for Rating Sound Insulation
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Scope
1.1 This classification provides methods of calculating single-number acoustical ratings for laboratory and field measurements of sound transmission obtained in one-third octave bands. The method may be applied to laboratory or field measurements of the sound transmission loss of a partition in which case the single-number ratings are called sound transmission class (STC) or field sound transmission class (FSTC), respectively. The method may also be applied to laboratory and field measurements of the sound isolation between two spaces, in which case the single-number ratings are called the noise isolation class (NIC) or normalized noise isolation class (NNIC).
Keywords
Acoustical materials-sound insulation; Building constructions/materials-partitions; Chemical-resistant mortars; Classification (standards)-acoustic materials; Field testing-sound transmission; Noise isolation class (NIC); Normalized noise isolation class (NNIC); One-third octave band sound pressure levels; Rating sound insulation; Sound transmission; Sound transmission class (STC); rating sound insulation-laboratory/field measurements, classification; ICS Number Code 91.120.20 (Acoustics in buildings. Sound insulation)
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04.06 (Thermal Insulation; Building and Environmental Acoustics)
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Document Number
ASTM-E0413-22
Revision Level
2022 EDITION
Status
Current
Modification Type
Reapproval
Publication Date
May 2, 2022
Document Type
Classification
Page Count
4 pages
Committee Number
E33.03