GB/T 15173-2010: Electroacoustics - Sound calibrators

Delivery: 9 seconds. Download (and Email) true-PDF + Invoice.
Get Quotation: Click GB/T 15173-2010 (Self-service in 1-minute)
Newer / historical versions: GB/T 15173-2010

Preview True-PDF

Scope

This Standard specifies the performance requirements for three classes of sound
calibrator. laboratory standard (class LS), class 1 and class 2.Tolerance limits are
smallest for class LS and greatest for class 2 instruments. Class LS sound calibrators
are normally used only in the laboratory; class 1 and class 2 are considered as sound
calibrators for field use. A class 1 sound calibrator is primarily intended for use with a
class 1 sound level meter and a class 2 sound calibrator primarily with a class 2 sound
level meter, as specified in IEC 61672.1.
The tolerance limits for class LS sound calibrators are based on the use of a laboratory
standard microphone, as specified in IEC 61094-1, for demonstrations of conformance
to the requirements of this Standard. The tolerance limits for class 1 and class 2 sound
calibrators are based on the use of a working standard microphone, as specified in GB/T
20441.4, for demonstrations of conformance to the requirements of this Standard.
A multi-level and multi-frequency sound calibrator has the same class designation for
all sound pressure level and frequency combinations for which the instruction manual
states that the instrument conforms to the requirements of this Standard.
This Standard does not include requirements for equivalent free-field or random-
incidence sound pressure levels, such as may be used in the overall sensitivity
adjustment of a sound level meter.
A sound calibrator may provide other functions, for example, tone bursts. Requirements
for these other functions are not included in this Standard.

Basic Data

Standard ID	GB/T 15173-2010 (GB/T15173-2010)
Description (Translated English)	Electroacoustics -- Sound calibrators
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	A59
Classification of International Standard	17.140.50
Word Count Estimation	65,681
Date of Issue	2010-09-02
Date of Implementation	2011-04-01
Older Standard (superseded by this standard)	GB/T 15173-1994
Quoted Standard	GB/T 3785.1-2010; GB/T 3240-1982; GB 9254-2008; GB/T 17626.2-2006; GB/T 17799.1-1999; GB/T 17799.3-2001; GB/T 20441.4-2006; ISO/IEC GUIDE-1995; international metrology basic vocabulary and common terminology; IEC 61094-1-2000; IEC 61094-2-1992; IEC 61094-5-2001; IEC 60050-801-1994; IEC 61000-4-3-2002; OIML R97-1990
Adopted Standard	IEC 60942-2003, IDT
Regulation (derived from)	Announcement of Newly Approved National Standards No. 4 of 2010 (total 159)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard provides three levels of acoustic calibrator performance requirements: Laboratory Standards (LS grade), a and 2. Which limits the minimum tolerance level LS, Z -level maximum tolerance limits. LS -level acoustic calibrator is generally only used in the laboratory, and one and two acoustic calibrators for field use. An acoustic calibrator mainly specified in IEC 61672. 1 supporting the use of a sound level meter, two -level acoustic calibrator nursing major and two supporting the use of sound level meter.