ASME B89.4.19 pdf download Performance Evaluation of Laser-Based Spherical Coordinate Measurement Systems 1 SCOPE This Standard prescribes methods for the performance evaluation of laser-based spherical coordinate measurementsystems and provides a basis for performance comparisons among such systes. Definitions, environmental requirements, and test methods are included with emphasis on point-to-point length measurements.The specified test methodsare appropriate for the pertormance evaluation of...