NBN EN 60580 : 2001

INTRODUCTION
1 Scope and object
2 Normative references
3 Terminology and definitions
4 General requirements
      4.1 Performance requirements
      4.2 Minimum EFFECTIVE RANGES of DOSE AREA PRODUCT
             and DOSE AREA PRODUCT RATE
      4.3 Plane of measurement
      4.4 REFERENCE VALUES and STANDARD TEST CONDITIONS
      4.5 General test conditions
             4.5.1 STANDARD TEST CONDITIONS
             4.5.2 Test of components
             4.5.3 STABILIZATION TIME
             4.5.4 Adjustments during test
             4.5.5 Uniformity of radiation field
      4.6 Statistical fluctuations
      4.7 Uncertainty of measurement
      4.8 Constructional requirements as related to
             performance
             4.8.1 Display
             4.8.2 Indication of polarizing voltage
                      failure
             4.8.3 Over-ranging
             4.8.4 Indication of reset or other inactive
                      condition
             4.8.5 IONIZATION CHAMBER
      4.9 STABILITY CHECK DEVICEth their corresponding
             European publications
      4.10 Adjustment
      4.11 Electrical safety
5 Limits of PERFORMANCE CHARACTERISTICS under STANDARD
      TEST CONDITIONS
      5.1 RELATIVE INTRINSIC ERROR
      5.2 Warning function
      5.3 Repeatability
      5.4 RESOLUTION of reading
      5.5 STABILIZATION TIME
      5.6 Reset on DOSE AREA PRODUCT ranges
      5.7 Drift of INDICATED VALUES
      5.8 Long term stability
      5.9 RESPONSE TIME
      5.10 Spatial uniformity of RESPONSE
6 LIMITS OF VARIATION for effects of INFLUENCE QUANTITIES
      6.1 Energy dependence of RESPONSE
      6.2 DOSE AREA PRODUCT RATE dependence of DOSE AREA
             PRODUCT measurements
             6.2.1 MEASURING ASSEMBLY
             6.2.2 IRONIZATION CHAMBER - Recombination
                      losses
      6.3 IRRADIATION TIME
      6.4 Field size
      6.5 Operating voltage
      6.6 Air pressure
      6.7 Temperature and humidity
      6.8 Air density fluctuation in the IONIZATION
             CHAMBER
      6.9 Electromagnetic compatibility
             6.9.1 General
             6.9.2 Electrostatic discharge
             6.9.3 Radiated electromagnetic fields
             6.9.4 Conducted disturbances induced by
                      bursts and high frequencies
             6.9.5 Surges
             6.9.6 Voltage dips, short interruptions and
                      voltage VARIATIONS
      6.10 COMBINED STANDARD UNCERTAINTY
7 Marking
      7.1 MEASURING ASSEMBLY
      7.2 IONIZATION CHAMBER
8 ACCOMPANYING DOCUMENTS
Table 1 - Minimum EFFECTIVE RANGES
Table 2 - REFERENCE VALUES and STANDARD TEST CONDITIONS
Table 3 - Number of readings required to detect true
          differences (95 percent confidence level) between
          two sets of instrument readings
Table 4 - RELATIVE INTRINSIC ERROR, I
Table 5 - Maximum values for the COEFFICIENT OF VARIATION,
          Vmax
Table 6 - LIMITS OF VARIATION for the effects of INFLUENCE
          QUANTITIES
Table 7 - Example for assessment of the COMBINED STANDARD
          UNCERTAINTY
Bibliography
Index of defined terms
Annex ZA (normative) Normative references to international
                     publications with their corresponding
                     European publications

Defines performance and testing of DOSE AREA PRODUCT METERS with IONIZATION CHAMBERS for measurement of DOSE AREA PRODUCT and/or DOSE AREA PRODUCT RATE to which the PATIENT is exposed during MEDICAL RADIOLOGICAL EXAMINATIONS. Objectives are to: establish criteria for a satisfactory performance level for DOSE AREA PRODUCT METERS, and standardize the methods for determining compliance with this level of performance.