BS ISO 15227:2000

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Accuracy of testing
5 Test conditions
      5.1 Total visual magnification (MTOT VIS)
      5.2 Difference in total visual magnification
             between left and right optical systems
      5.3 Difference in axes between left and right
             optical systems
      5.4 Difference in the centers of the image fields
             between left and right optical systems
      5.5 Difference in imaging rotations between right
             and left images
      5.6 Axial shift of object plane by magnification
             change
      5.7 Lateral shift of image plane by magnification
             change
      5.8 Focus difference between left and right optical
             systems
      5.9 Resolution for the highest magnification at the
             center of the field
      5.10 Difference in exit pupil heights between left
             and right optical systems
      5.11 Minimum range for interpupillary distance
      5.12 Calibration error if a dioptre scale is used
      5.13 Minimum eyepiece dioptre adjustment range
6 Test methods
      6.1 Apparatus
      6.2 Apparatus configuration
      6.3 Test procedures
Bibliography

Recommended test methods and test conditions to ensure the minimum requirements for stereomicroscopes are defined in this standard. These minimum requirements are given in ISO 10936-1, ISO 11884-1 and ISO 11884-2. The test methods defined in this International Standard are recommended, but use of other test methods is allowed if the same results are obtained.

This International Standard specifies test conditions and recommended test methods to ensure the minimum requirements for stereomicroscopes. These minimum requirements are given in ISO10936-1, ISO11884-1 and ISO11884-2.

The test methods specified in this International Standard are recommended, but use of other test methods is permitted if the same results are obtained.