Online Standards Store PDF
Petroleum and natural gas industries. Rotary drilling equipment. Part 2. Inspection and classification of used drill stem elements. General technical requirements and control methods
Document status: Active
Spiral classificators. Types, basic parameters, dimensions and specifications
Document status: Active
Synthetic detergents. Method for determination of mass percentage sodium carbonate or sodium bicarbonate
Document status: Active
Organic chemical products. Methods for determination of melting point interval
Document status: Active