JJG 639-1998 Active National Metrology and Inspection Regulations JJG

JJG 639-1998 Ultrasonic Source for Medical Ultrasonic Diagnostic Equipment

Publish Date: 1998-09-16 Implement Date: 1999-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: JJG 639-1998

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: -

Publish Date: 1998-09-16

Implement Date: 1999-03-01

Pages: 17 pages

Scope

This procedure applies to the verification of ultrasonic sources (excluding special probes) of general-purpose Type B pulse reflection ultrasonic diagnostic instruments (hereinafter referred to as "instruments") that are newly manufactured, in use, or repaired (including the replacement of probes) and have a nominal frequency not exceeding 75 MHz.

Development Information

Word Count: 22 Thousand words Pages: 17 pages

Replace the following standards

JJG 639-1990

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