GOST R 59143-2020

State systems for ensuring the uniformity of measurements. Method of measurement of spectral diffuse reflectance of photovoltaic elements and solar collectors at angles of incidence of the radiation from 5 ° to 85 °

Artificial for cap with ear-fleps for service man. Specifications

Cereals and cereal products. Determination of the viscosity using an amylograph

Melioration. Types of melioration measures and works. Classification

Safety in emergencies. Monitoring and forecasting of dangerous hydrological phenomena and processes. General requirements

Iron ores, concentrates, agglomerates and pellets. Methods of sampling and sample preparation for chemical analysis and determination of moisture content