Russian standards PDF

Environmental protection. Surface and ground water. General requirements for protection against contamination by mineral fertilizers

Document status: Active

Means of education. Electronic educational devices for children. General requirements

Document status: Active

Optics and photonics. Optical lenses. Design and dimensions

Document status: Active

Optics and photonics. Densitometers. Terms and definitions

Document status: Active

Optics and photonics. Optical details. Typical technological processes for applying three-layer achromatic antireflection coatings from solutions to optical parts for spectral ranges from 0,5 to 2,0 µm

Document status: Active

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

Document status: Active