IS 8638 Pt.2-1977 Test specifications for magnetic compasses and compasses Category A Part II Individual testing of magnetic compasses and bearing reading devices
This standard ( Part II ) deals with the test procedures and accept-able limits of performance necessary to establish conformity of individual devices with the requirements laid down in IS : 4045-1967*, where a type test certificate has already been issued in accordance with Part I of this standard.
IS 8638 Pt.2-1977 history
1990IS 8638 Pt.2-1989 Shipbuilding industry - Class A magnetic compasses, compasses and azimuth reading devices - Specification for testing and certification Part 2 Azimuth reading devices
1978IS 8638 Pt.2-1977 Test specifications for magnetic compasses and compasses Category A Part II Individual testing of magnetic compasses and bearing reading devices