IS 7009-1973
Optical square specifications (for measurement)

Standard No.

IS 7009-1973

Release Date

1973

Published By

IN-BIS

Latest

IS 7009-1973

Scope

This standard covers the general and functional requirements of optical square.

IS 7009-1973 history

• 1973 IS 7009-1973 Optical square specifications (for measurement)