State system for ensuring the uniformity of measurements. Standard reference data. Orthohydrogen, liquid and gaseous. Density, enthalpy, entropy, isochoric, isobaric heat capacities and speed of sound at temperatures from 15 K up to 1000 K and pressures up to 100 MPa
System of product development and launching into manufacture. Products of industrial and technical designation. Procedure of product development and launching into manufacture
Glass-reinforced thermosetting plastics piping systems based on unsaturated polyester resins for pressure and non-pressure drainage and sewerage. General technical requirements
Low-voltage switchgear and controlgear assemblies. Part 3. Particular requirements for low-voltage switchgear and controlgear assemblies intended to be installed in places where unskilled persons have access for their use. Distribution boards
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