Plastics piping systems for pressure and non-pressure drainage and sewerage - Glass-reinforced thermosetting plastics (GRP) systems based on unsaturated polyester (UP) resin. (ISO 10467:2004, MOD)
State system for ensuring the uniformity of measurements of the Republic of Uzbekistan. Measurements of the flow and quantity of liquids and gases by differential pressure method. Determination of the correction factor for blunting of the leading edge of the aperture of a diaphragm. Replaces RD Uz 51-072-98, RD Uz 51-059-97