GOST 25346-1989 Basic norms of interchangeability. Unified system of tolerances and fits. General, series of tolerances and fundamental deviations*, 1989-04-17 Update
GOST 25347-1982 Basic norms of interchangeability. Unified system of tolerances and fits. Tolerance zones and recommendalle fits*, 1982-04-17 Update
GOST 2789-1973 Surface roughness. Parameters and characteristics
GOST 9833-1973 history
1973GOST 9833-1973 Rubber toroidal sealing rings for hydraulic and pneumatic equipment. Construction and dimensions