I.S. EN 13925-3:2005

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Description of equipment
   4.1 General
   4.2 X-ray sources
        4.2.1 General
        4.2.2 Conventional X-ray sources (sealed tubes
               and rotating anode sources)
        4.2.3 Synchrotron radiation sources
   4.3 Incident and diffracted X-ray beam optics
        4.3.1 General
        4.3.2 Monochromators
        4.3.3 Beam dimensions and geometry
   4.4 Detectors
        4.4.1 Types of detector
        4.4.2 Spatial resolution of detectors
        4.4.3 Energy resolution of detectors
   4.5 Goniometers
        4.5.1 General
        4.5.2 Specimen positioning
   4.6 Specimen stage
   4.7 Data collection system
5 Characterisation of equipment components
6 Equipment alignment and calibration
   6.1 General
   6.2 Alignment
   6.3 Calibration
7 Performance testing and monitoring
Annex A (informative) Relationship between the XRPD standards
Annex B (informative) Alignment of Bragg-Brentano
        diffractometers
Annex C (informative) Procedures for instrument performance
        characterisation
      C.1 General
      C.2 Position, intensity and breadth of a limited
           number of diffraction lines
      C.3 Angular Deviation Curve
      C.4 Line breadth
      C.5 Intensity diagrams
      C.6 Shape Analysis Curve
      C.7 Lattice parameters
      C.8 The use of the Fundamental Parameter Approach
      C.9 Whole pattern fitting
Annex D (informative) Sample report forms for characterisation
        of instruments
Bibliography

Establishes the characteristics of instruments used for X-ray powder diffraction ("powder" as defined in EN 13925-1:2003, Clause 5) as a basis for their control and hence quality assurance of the measurements made by this technique.