State system for ensuring the uniformity of measurements. Pressure, combined pressure-vacuum, vacuum, gauges and draught gauges with pneumatic output signals. Methods of verification
Tubes for boiler and heat exchanging equipment. Technical specifications. Part 1. Seamless steel pipes to work under pressure not more than 6,4 MPa and at temperatures not exceeding 400 C
Polymer composites. Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography. Part 3. Low-temperature method