ANSI S12-2 : 2008
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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CRITERIA FOR EVALUATING ROOM NOISE
Hardcopy , PDF
English
01-01-2008
08-05-2023
1 Scope
2 Normative references
3 Terms, definitions, abbreviations, and symbols
4 Significance and use of this Standard and
deviations from the previous ANSI S12.2-1995
5 Criteria
5.1 A-weighted criteria
5.2 NC (noise criteria) curves
5.3 RNC (room noise criterion)
6 Acoustically induced vibrations and rattles
Annex A (informative) - Example evaluations using RNC
A.1 Evaluation of room noise using the RNC curves
A.2 Example 1 - Excessive turbulence
(large standard deviation) and
minimal surging
A.3 Example 2 - Strong surging and
strong turbulence
Annex B (informative) - A discussion of the criteria
B.1 Discussion of RC, NC, and NCB
criteria curves
B.2 Discussion of RNC criteria curves
Annex C (informative) - Recommended noise level
criteria for various occupied
activity areas
C.1 Recommended A-weighted criteria
C.2 Recommended NC and RNC criteria
Annex D (informative) - RC Mark II
D.1 Introduction
D.2 Room criterion curves
D.3 Spectrum classification
D.4 Method for calculating an RC value
D.5 Quality assessment index (QAI)
D.6 Recommended criteria
Annex E (informative) - Criteria for recording
studios and other low-noise
situations
E.1 Criteria
E.2 Recording studio "audibility"
threshold curves
Bibliography
Gives three primary methods for evaluating room noise: a survey method, an engineering method, and a method for evaluating low-frequency fluctuating noise.
| Committee |
S12
|
| DocumentType |
Standard
|
| Pages |
50
|
| PublisherName |
Acoustical Society of America
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| AAMI HE75 : 2009(R2013) | HUMAN FACTORS ENGINEERING - DESIGN OF MEDICAL DEVICES |
| UFC 3-101-01 : Change 3 | UNIFIED FACILITIES CRITERIA - ARCHITECTURE |
| ANSI S12.60 : 0 | ACOUSTICAL PERFORMANCE CRITERIA, DESIGN REQUIREMENTS, AND GUIDELINES FOR SCHOOLS |
| AAMI HE75 : 2009 | HUMAN FACTORS ENGINEERING - DESIGN OF MEDICAL DEVICES |
| ANSI/ASA S1.1:2013 | ACOUSTICAL TERMINOLOGY |
| ANSI S1.4 : 1983 | SPECIFICATION FOR SOUND LEVEL METERS |
| ANSI/ASA S1.6 : 2016 | PREFERRED FREQUENCIES AND FILTER BAND CENTER FREQUENCIES FOR ACOUSTICAL MEASUREMENTS |
| ISO 226:2003 | Acoustics — Normal equal-loudness-level contours |
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