Russian standards PDF
Renewable power engineering. Thermal solar systems and components. Test methods for solar collectors. Part 3. Thermal performance of glazed liquid heating collectors (sensible heat transfer only) including pressure drop
Document status: Active
Underground utilities. Determination of location and depth with nondestructive methods
Document status: Active
Hard-metals bits for core exploratory drilling in medium hard. Specifications
Document status: Active
Butadienemethylstyrene synthetic rubber CKMC-30APKM-15 and butadiene-styrene rubber CKC-30APKM-15. Specifications
Document status: Replaced by GOST 11138-2019
