Roofing and hydraulic-insulating flexible bitumen-based and polymeric (thermoplastic or elastomer) materials. Method for determination of watertightness
System of standards on information, librarianship and publishing. Cards for catalogs and files, model annotated card in edition. General requirements and publishing presentation
State system for ensuring the uniformity of measurements. Relative dielectric permittivity the loss tangent of solid dielectrics. Procedure of measure from 10 in 9 degree to 10 in 10 degree Hz
