DZ/T 0101.12-1994
Active
JJF 1797-2020
Active
National Metrology Technical Specifications JJF
JJF 1797-2020 Calibration Specification for Measuring Instruments for Overall Speech Characteristics of Intercom Systems
JJF 1797-2020 Calibration Specification for Measuring Instruments for Overall Speech Characteristics of Intercom Systems
Basic Information
Standard Code:
JJF 1797-2020
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
-
ICS Name:
-
Publish Date:
2020-01-17
Implement Date:
2020-04-17
Pages:
20 pages
Scope
This specification is applicable to the frequency range of 100 Hz to 8 kHz, and is used for the calibration of full-process voice characteristic measuring instruments used in the evaluation of sound quality of products such as intercom systems.
Development Information
Referenced Standards
JJG 175-2015 Working Standard Microphones(Electrostatic Actuator Method)
JJG 449-2014 Octave-Band and Fractional-Octave-Band Filters
JJG 869-2002 Electro-acoustical Measurement Instruments for Telephone Set
JJG 1019-2007 Working Standard Microphones(Coupler Comparison Method)
JJF 1034-2005
JJF 1147-2006 Calibration Specification for Acoustic Performance of Anechoic Rooms and Hemi-anechoic Rooms
JJF 1580-2016 Calibration Specification for Artificial Mouths
GB/T 31070.1-2014 Building intercom systems—Part 1:General technical requirements
IEC 62820-1-1:2016
ITU-T P.501
GB/T 3102.7-1993 Quantities and units—Acoustics
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