NEN EN 12668-1 : 2010

Foreword
1 Scope
2 Normative references
3 Definitions
4 Symbols
5 General requirements for compliance
6 Manufacturer's technical specification for
  ultrasonic instruments
  6.1 General
  6.2 General attributes
  6.3 Display
  6.4 Transmitter
  6.5 Amplifier and attenuator
  6.6 Digital ultrasonic instruments
7 Performance requirements for ultrasonic instruments
8 Group 1 tests
  8.1 Equipment required for Group 1 tests
  8.2 Stability against temperature
  8.3 Transmitter pulse parameters
  8.4 Receiver
  8.5 Monitor gate
  8.6 Monitor gates with proportional outputs
  8.7 Digital ultrasonic instruments
9 Group 2 tests
  9.1 Equipment required for group 2 tests
  9.2 Physical state and external aspects
  9.3 Stability
  9.4 Transmitter pulse parameters
  9.5 Receiver
  9.6 Linearity of time-base
Annex A (normative) Special conditions for ultrasonic
        instruments with logarithmic amplifiers
  A.1 Introduction
  A.2 Basic requirements
  A.3 tests
Bibliography

Defines methods and acceptance criteria for assessing the electrical performance of analogue and digital ultrasonic instruments for pulse operation using A-scan display, employed for manual ultrasonic non-destructive examination with single or dual-element probes operating within the centre frequency range 0,5 MHz to 15 MHz.