ISO 2016:1981

This edition cacels and replaces the ISO Recommendation R 2016 - 1971. Specifies the field of application, the assembly dimensions and their tolerances, the materials and tests for fittings. The assembly diameters ranging from 6 mm up to and including 108 mm. Comprises GO and NOT GO plug gauges (table5), and GO and NOT GO ring gouges (table 6).