GOST 5220-78

Manganese ores, concentrates and agglomerates. Method for the determination of hygroscopic moisture

Tubes copper tubes for water and gas. Specifications

Nature protection. Soils. General requirements for sampling

Resources saving. Terms and definitions

Seamless and welded steel tubes. Part 6. Radiographic testing for the detection of imperfections of the weld seam

State system for ensuring the uniformity of measurements. State verification schedule for measuring instruments of signal length and time of propagation in fibre, average power, attenuation and wavelength for system of fibre-optic transmission and of data transmission