YY/T 1142-2003Methods of measuring frequency of medical diagnostic and monitoring ultrasonic equipment (English PDF)

1 Foreword

YY/T 1142-2003 was issued by National Medical Products Administration of the People's Republic of China on 20 June 2003.

The YY/T prefix marks a recommended standard. It is not law in itself: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it.

The document runs to 15 pages in English translation.

2 Scope Preview

This standard specifies the methods of measuring the frequency of diagnostic and monitoring ultrasonic equipment (hereinafter referred to as “the equipment”) within a frequency range of 0.5 MHz to 15 MHz. This standard is applicable to all kinds of diagnostic and monitoring ultrasonic equipment working in continuous wave, quasi-continuous wave or pulse wave states. These equipment can be equipped with single chip emitting-receiving probe, double single chip emitting-receiving split probe, multi-chip quincunx probe, mechanical fan scanning probe, linear probe, convex array probe and phased array probe, etc.

YY/T 1142-2003 carries no ICS number and no Chinese Standard Classification code.

This catalogue holds 2,111 other YY/T standards.

Of the 977 YY/T standards that do carry an ICS number, 960 (98%) fall under ICS 11, in the field of health care technology.

3 Normative references

GB/T 16540-1996 — Acoustics - Measurement and characterisation of ultrasonic fields in the frequency range 0.5MHz to 15MHz - Hydrophone method (eqv IEC 61102:1991)

YY/T 0163-1994 — Characteristics and calibration of hydrophones for medical ultrasonic fields

4 About this standard

Issued by: National Medical Products Administration of the People's Republic of China

English translation: about 15 pages

5 Related standards

Other editions:

YY/T 1142-2013 (later edition)

6 Classification and status

Chinese Standard Classification (CCS): C 41

Prefix YY/T: recommended standard.