ASTM E413 Classification for Rating Sound Insulation

ASTM E413 Classification for Rating Sound Insulation
ASTM E413隔音等级的分类
These single-number ratings correlate in a general way with subjective impressions of sound transmission for speech, radio, television, and similar sources of noise in offices and buildings. This classification method is not appropriate for sound sources with spectra significantly different from those sources listed above. Such sources include machinery, industrial processes, bowling allies, power transformers, musical instruments, many music systems, and transportation noises such as motor vehicles, aircraft and trains. For these sources, accurate assessment of sound transmission requires a detailed analysis in frequency bands. A single-number sound transmission rating for building fa�ade elements is given in Classification E1332.
The single-number ratings obtained can be used to compare the potential sound insulation of partitions or floors tested in laboratory conditions (STC) or the actual sound isolation between different suites in buildings (NNIC, NIC). The rating for a partition built and tested in a building may be lower than that obtained for a partition tested in a laboratory because of flanking transmission or construction errors.
Note 1—A similar rating procedure, described in ISO 717, provides single figure sound insulation ratings with a frequency range that extends from 100 to 3150 Hz with no maximum deficiency specified at individual frequencies. For most partitions, the two ratings differ by only one or two points.
1. Scope
1.1 This classification covers methods of calculating single-number acoustical ratings for laboratory and field measurements of sound attenuation obtained in one-third octave bands.
1.2 The name given to the single-number rating is assigned by the test method that invokes this classification.
1.3 Test methods that invoke this classification include:
1.3.1 Test Method E90—The single-number rating is called sound transmission class (STC).
1.3.2 Test Method E336—Single-number ratings are field sound transmission class (FSTC), noise isolation class (NIC), and normalized noise isolation class (NNIC).
1.3.3 Test Method E596—The single-number rating is called noise isolation class (NIC).
1.3.4 Test Method E1414—The single-number rating is called ceiling attenuation class (CAC).
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

2. Referenced Documents (purchase separately)
ASTM Standards
C634 Terminology Relating to Building and Environmental Acoustics
E90 Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements
E336 Test Method for Measurement of Airborne Sound Attenuation between Rooms in Buildings
E596 Test Method for Laboratory Measurement of Noise Reduction of Sound-Isolating Enclosures
E1332 Classification for Rating Outdoor-Indoor Sound Attenuation
E1414 Test Method for Airborne Sound Attenuation Between Rooms Sharing a Common Ceiling Plenum
ISO Standard
ISO717 Rating of Sound Insulation for Dwellings
Index Terms
architectural acoustics; building design; ceiling attenuation class (CAC); field sound transmission class (FSTC); noise isolation class (NIC); normalized noise isolation class (NNIC); partitions (buildings); sound insulation rating; sound transmission class (STC); Acoustical materials/applications; Architectural acoustics; Chemical-resistant mortars; Classification (standards)--acoustic materials; Field sound transmission class (FSTC); Field testing--sound transmission; Noise isolation class (NIC); Normalized noise isolation class (NNIC); One-third octave band sound pressure levels; Partitions; Sound absorbing/insulating materials/applications; Sound transmission--building materials/applications; Sound transmission class (STC);


ASTM E535 Standard Practice for Preparation of Fire-Test-Response Standards
ASTM E535
This standard is to be used by those concerned with the development of fire-test-response standards.
The resultant fire-test-response standards are intended to be useful in one or more of the following areas, among others: product development, quality control, product comparisons, screening, information to be used as part of a fire hazard or a fire risk assessment, and regulatory purposes.
This practice is intended to be useful to users of fire-test-response standards because it provides much of the general rationale for the development and use of such standards.
This practice is not intended to provide guidance for the preparation of fire hazard assessment standards or fire risk assessment standards.
This practice is not intended to provide guidance for the preparation of standards not related to fire-test responses of materials, products or assemblies.
1. Scope
1.1 This practice is a supplement to Form and Style for ASTM Standards , which shall be consulted in writing all ASTM standards.
1.2 This practice contains, directly or by reference, all of the information required to comply with the policy on fire standards and the additional guidelines recommended by Committee E05.
1.3 This practice, intended to assist ASTM Committees, establishes guidelines and criteria for the preparation of fire-test-response standards (that is, standards for response to heat or flame under prescribed conditions).
1.4 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.
1.5 This fire standard cannot be used to provide quantitative measures.

2. Referenced Documents (purchase separately)
ASTM Standards
E176 Terminology of Fire Standards
E456 Terminology Relating to Quality and Statistics
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
Index Terms
caveat; checklist; commentary; fire; fire-test-response; fire-test-response characteristic; guidance; implementation; policy; practice; preparation; response; standard; test; Fire risk/safety; Fire testing--building materials; Fire-test response ;