JJF 2389-2026 Pending National Metrology Technical Specifications JJF

JJF 2389-2026 Calibration Specification for Acoustic Performance Parameters Measurement Systems of Underwater Acoustic Materials(Travelling Wave Tube Method)

Publish Date: 2026-04-02 Implement Date: 2026-10-02 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: JJF 2389-2026

Standard Type: National standards

Standard Status: Pending

is_force_gb: no

CCS Name: -

ICS Name: -

Publish Date: 2026-04-02

Implement Date: 2026-10-02

Pages: 28 pages

Scope

This specification applies to the calibration of the acoustic performance parameter measurement system (using the traveling wave tube method) for underwater acoustic materials with a frequency range of 50 Hz to 4 kHz, a water temperature range of 5°C to 35°C, and a static water pressure range of 0.5 MPa to 10 MPa.

Development Information

Word Count: 32 Thousand words Pages: 28 pages

Referenced Standards

JJG 449-2001 Octave-Band and One-Third-Octave Band Filters JJG 449-2014 Octave-Band and Fractional-Octave-Band Filters JJF 1001-1998 General Terms in Metrology and Their Definitions JJF 1001-2011 General Terms in Metrology and Their Definitions JJF 1034-2020 Terms and Definitions for Acoustical Metrology JJF 1059.1-2012 Evaluation and Expression of Uncertainty in Measurement JJF 1446-2014 Calibration Specification for Impedance Tubes(Transfer Function Method) GB/T 3102.7-1993 Quantities and units—Acoustics GB/T 3947-1996 Acoustical terminology GB/T 14369-1993 Acoustics—Measurement method of insertion loss and echo reduction for the underwater acoustical material sample GB/T 14369-2011 Acoustics—Measurement methods of insertion loss,echo reduction and sound absorption coefficient for underwater acoustical material samples GB/T 32523-2016 Acoustics—Measurement of sound pressure reflection coefficient, sound pressure transmission coefficient and absorption coefficient for underwater acoustical material sample—Travelling wave tube method

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