ObsoleteGo to latest versionJJG 449-2014

JJG 449-1986Verification Regulation of Octave-band and One-third-octave-band Filters (English PDF)

1/1和1/3倍频程滤波器检定规程

JJG 449 | Evolution and historical versions

Std ID	Title	Status
JJG 449-2014	Octave-Band and Fractional-Octave-Band Filters	Valid
JJG 449-2001	Verification Regulation of Octave-Band and One-Third-Octave Band Filters	Obsolete
JJG 449-1986	Verification Regulation of Octave-band and One-third-octave-band Filters	Obsolete

JJG 449-1986 is obsolete. It has been replaced by JJG 449-2001. This page sells the obsolete edition, for projects and contracts that still cite it.

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Level / Type

National · Mandatory

Scope

JJG 449-1986 is the English-translated version of 1/1和1/3倍频程滤波器检定规程.

JJG 449-1986 is the Chinese metrological standard "Verification Regulation of Octave-band and One-third-octave-band Filters". It is obsolete: it has been replaced by JJG 449-2001.

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Document preview — JJG 449-1986

Document data

1 Document data

Sector: Metrological Verification (metrological standard).

Status: obsolete, replaced by JJG 449-2001.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.

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