GOST R 53511-2009

Footwear. Performance requirements for components for footwear. Shanks

Alloyed and highalloyed steels. Methods for determination of niobium

Global navigation satellite system. Road accident emergency response system. In-vehicle emergency call device/system. General technical requirements

Refractories and refractory raw materials. Methods for the determination of calcium oxide

Optics and photonics. Optical crystals. Method for determination of bubbles using microscope

Lasers and laser-related equipment. Test methods for laser beam widths, divergence angles and beam propagation ratios. Part 3. Intrinsic and geometrical laser beam classification, propagation and details of test methods