ASTM E1124-97
Historical Standard: ASTM E1124-97 Standard Test Method for Field Measurement of Sound Power Level by the Two-Surface Method
SUPERSEDED (see Active link, below)
ASTM E1124
1. Scope
1.1 This test method covers the field, or in situ measurement of sound power level by the two-surface method. The test method is designed to minimize the effects of reverberant conditions, directivity of the noise source under consideration, and the effects of ambient noise from other nearby equipment operating at the same time.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
C634 Terminology Relating to Building and Environmental Acoustics
ANSI Standard
S1.4 Specification for Sound Level MetersKeywords
field sound power; industrial noise; machinery noise; sound power; two-surface method; Acoustical tests; Ambient sound pressure levels; Band filter sets; Concave measurement surfaces; Conformal measurement surfaces; Convex measurement surfaces; Field testing--sound transmission; Leveling characteristics; Microphones; Noise level measurement; One-third octave band sound pressure levels; Relative assessment; Sound transmission--building materials/applications; Specimen preparation (for testing)--sound transmission studies; Two-surface method;
ICS Code
ICS Number Code 17.140.01 (Acoustic measurements and noise abatement in general)
DOI: 10.1520/E1124-97
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