ANSI S1.4-1985 Specification for Sound Level Meters
- Abbreviation
- ANSI S1.4-1985
- Version
- 83rd Edition, Reaffirmed 21 March 2006
- Valid from
- 17/02/1983
- Information provider
- IHS Markit,
- Author
- American National Standards Institute
- Information type
- Other Standard,
- Format
- PDF, HARD COPY,
Description
Various degrees of accurancy are required for the practical measurement of sounds of various kinds for different purposes. Hence, this standard specifies minimum requirements for three basic types of sound level meters, types 0, 1, and 2, with performance requirements that becomes progressively less stringent, proceding from type 0 to type 2.
For each type, the standard requires three frequency weightings, A, B, and C, and two exponential-time-averaging characteristics, slow and fast. Also it defines a so-called impulse-response characteristic which is optional for any type. The standard permits special features in a sound level meter, such as pre-measuing capabilities, wide ranges for the display of sound level on an analog indicator, digital displays, recroding displays, and automatic range changing.
This resource is cited by:
ANSI S1.4-1985 Specification for Sound Level Meters
This document is CITED BY:
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ASTM E336-90
ANSI S1.4-1985 is cited by ASTM E336-90 Method for measurement of airborne sound insulation in buildings