State system for ensuring the traceability of measurements. Gas analyzers and gas alarm devices for determination of combustible gases and vapors in working zone air. Testing method
State system for ensuring the uniformity of measurements. Standard reference data. Toluene, liquid and gaseous. Density, enthalpy, entropy, isochoric and isobaric heat capacities and speed of sound at temperatures from 180 K up to 700 K and pressures up to 100 MPa
