This specification provides a standard for the alignment
tests required to evaluate the accuracy and determine
acceptance of NAS 900 Series equipment noted in paragraph
1.2, and to provide a standard format for recording and
reporting actual alignment results. This standard lists
minimum requirements.
AIA/NAS NAS 985-1972 history
1972AIA/NAS NAS 985-1972 Uniform Alignment Tests - NAS 900 Series Equipment Specifications