Russian standards PDF
Non-destructive testing. Railway rails. Ultrasonic control methods
Document status: Replaced by GOST 18576-96
Rubber O-ring seals for hydraulic and pneumatic equipment. Specifications
Document status: Active
Pentanes. Method for determination of hydrocarbon compounds
Document status: Active
Refractory materials and products. Methods for the determination of calcium oxide
Document status: Replaced by GOST 2642.7-97