JJG 449-2014 Active National Metrology and Inspection Regulations JJG

JJG 449-2014 Octave-Band and Fractional-Octave-Band Filters

JJG 449-2014 Octave-Band and Fractional-Octave-Band Filters

Publish Date: 2014-08-25 Implement Date: 2015-02-25 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: JJG 449-2014

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: -

Publish Date: 2014-08-25

Implement Date: 2015-02-25

Pages: 26 pages

Scope

This procedure is applicable to the initial verification, subsequent verification, and in-use inspection of first- and second-order octave filters and fractional octave filters within the audio frequency range.

Development Information

Word Count: 41 Thousand words Pages: 26 pages

Replace the following standards

JJG 449-2001 Octave-Band and One-Third-Octave Band Filters

Referenced Standards

JJF 1001-2011 General Terms in Metrology and Their Definitions JJF 1034-2005 GB/T 3241-2010 Electroacoustics—Octave-band and fractional-octave-band filters GB/T 3102.5-1993 Quantities and units—Electricity and magnetism GB/T 3102.7-1993 Quantities and units—Acoustics

Related Standards

DZ/T 0101.12-1994 Active

DZ/T 0101.12-1994 Geological instrument manufacturing time quota for printed circuit board

Publish Date: 1994-01-27

JJG 204-1980 Active

JJG 204-1980 Meteorological Ventilation Psychrometer

Publish Date: 1980-07-11

SC 53-1980 Active

SC 53-1980 Transfer blade hydraulic steering gear repair quality standard

Publish Date: 1981-07-01

DZ 4-1981 Replaced

DZ 4-1981

Publish Date: 1981-08-20

SC 69-1982 Active

SC 69-1982 ZSS-12 Flash-type seawater desalination production device technical specifications

Publish Date: 1982-01-20

SC 72-1982 Active

SC 72-1982 Steel Fishing Boat Builder Quality Standards and Mooring Equipment Installation Technical Requirements

Publish Date: 1982-03-30