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Fertilizers. Determination of total nitrogen in calcium cyanamide nitrate free
Document status: Active
Piezoelectric and electromechanical filters. Terms and definitions
Document status: Withdrawn
Artificial lighting. Information support for inventory of lighting systems objects. Object classification
Document status: Active
Molybdenum annealed strips for deep drawing. Specifications
Document status: Active
Optics and photonics. Flat holographic diffraction gratings on flat workpieces. Types and technical requirements
Document status: Active