State system for ensuring the uniformity of measurements. State verification schedule for means of LTEC measurements of solids from 0,01х10 -6 to 100х10 -6 К -1 substance in temperature range from 90 to 3000 K
State system for ensuring the uniformity of measurements. Ultrasonics focusing transducers. General requirements to measurement methods of ultrasound radiation parameters
Ambient air quality. Diffusive samplers for the determination of concentrations of gases and vapours. Requirements and test methods. Part 3. Guide to selection, use and maintenance
