JJG 990-2004 Active National Metrology and Inspection Regulations JJG

JJG 990-2004 Acoustic Detector

Publish Date: 2004-09-21 Implement Date: 2004-12-21 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: JJG 990-2004

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: -

Publish Date: 2004-09-21

Implement Date: 2004-12-21

Pages: 14 pages

Scope

This procedure is applicable to the initial verification, subsequent verification, and in-use inspection of acoustic wave detectors.

Development Information

Word Count: 17 Thousand words Pages: 14 pages

Referenced Standards

GB/T 3223-1994 Acoustics—Free-field calibration method of underwater sound transducers GB/T 3947-1996 Acoustical terminology GB/T 12604.1-1990 GB/T 17252-1998 Acoustics—Characteristics and measurements of ultrasonic piezoelectric transducers up to 100kHz JJF 1001-1998 General Terms in Metrology and Their Definitions JJF 1059-1999 JJG 185-1997 Measuring Hydrophone in the Frequency Range 500 Hz to 1 MHz JG/T 5004-1992 CECS02:88 CECS21:2000

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