GOST 22261-1994 Means for measuring electrical and magnetic quantities. General specifications*, 1994-04-19 Update
GOST 427-1975 Measuring metal rules. Basic parameters and dimensions. Specifications*, 1975-04-19 Update
GOST 7590-1993 Direct acting indicating analogue electrical measuring instruments and their accessories. Part 4. Special requirements for freguency meters*, 1993-04-19 Update
GOST 16483.31-1974 history
1974GOST 16483.31-1974 Wood. Resonance method for determination of modulus of elasticity and shear and decrement vibrations