Russian standards PDF

Power transformers. Ability to withstand short circuit

Document status: Active

Soils. Laboratory methods for determination of physical characteristics

Document status: Active

Concretes. Methods of determination of density

Document status: Active

Concretes. Method of determination of moisture content

Document status: Active

Concretes. Method of determination of water absorption

Document status: Active

Concrete. Ultrasonic method of strength determination

Document status: Active