标准号:IS 8638 Pt.1-1989
发布日期:1990/7/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围: This standard (Part 1 ) deals with the best procedures and acceptable limits of performance of Class A, compasses, bowls and gimbals neces-sary to establish conformity of newly developed devices with the requirements laid down in IS 4045 : 1982.