Rectangular all-cast moulding boxes of aluminium and magnesium alloys having inside dimensions: length 800; 900 mm, width from 500 to 700 mm, height 250; 300 mm. Construction
State system for ensuring the uniformity of measurements. State hierarchy scheme for measuring instruments of the content of organic components in liquid and solid mediums and materials. Transfer of the units from the state primary standard based on liquid and gas chromato-mass-spectrometry with isotope dilution and gravimetry
Transmitting stationary antennas for television and broadcasting stations of VHF and UHF frequency bands. Classification. Technical requirements. Test methods
