EN 15433-3:2007

Foreword
Introduction
1 Scope
2 Normative references
3 Identification of physical events
  3.1 General
  3.2 Identification of periodic signal components
  3.3 Identification of time-varying signals
4 Visual inspection of analogue time histories
  4.1 Signal clipping
  4.2 Excessive instrumentation noise
  4.3 Intermittent noise
  4.4 Power line pickup
  4.5 Spurious trends
  4.6 Signal dropouts
5 Visual inspection of digital time histories
  5.1 General
  5.2 Signal clipping
  5.3 Excessive digital noise
  5.4 Wild points
  5.5 Spurious trends
6 Visual inspection of analysed data
  6.1 General
  6.2 Probability density plots
      6.2.1 General
      6.2.2 Signal clipping
      6.2.3 Intermittent noise
      6.2.4 Wild points
      6.2.5 Power line pickup
      6.2.6 Signal dropouts
  6.3 Narrow band spectral analysis
      6.3.1 General
      6.3.2 Excessive instrumentation noise
      6.3.3 Power line pickup
7 Corrective editing of time histories
  7.1 General
  7.2 Corrections of excessive instrumentation noise
  7.3 Removal of intermittent noise spikes and wild points
  7.4 Removal of spurious trends
  7.5 Removal of temporary signal dropouts
8 Identification of periodic components
  8.1 General
  8.2 Narrow-band spectral analysis
  8.3 Band-limited probability density analysis
9 Identification of stationary and non-stationary trends
Bibliography

This standard defines procedures for assessing the validity of results acquired in accordance with EN 15433-2, and for evaluating these results. NOTEWhen measuring and analysing dynamic processes, quite often unnoticed or difficult to recognize disturbances or erroneous measurements occur, which impair the application of these values. These procedures are necessary in order to detect possible errors before any actual analysis occurs.Figure 1 provides an overview of the data validation and editing processes in this standard.