GOST 4750-89

Occupational safety standards system. Screening devices for protection from power frequency fields. General technical requirements. Basic parameters and dimensions

Food-stuffs. Method for determination of iron

Test methods specific to filling compounds of electric cables. Drop-point. Separation of oil. Lower temperature brittleness. Total acid number. Absence of corrosive components. Permittivity at 23°C. D.c. receptivity at 23°C and 100°C

Nature protection. Hydrosphere. General rules for water pollution protection over well drilling and oil and gas extracting of land

Estimation of potential dangerous objects lifetime on the basis of express methods

Tripods for geodetic instruments. General specifications