State system for ensuring the uniformity of measurements. Photovoltaic devices. Part 7. Computation of the spectral mismatch correction for measurements of photovoltaic devices
State system for ensuring the uniformity of measurements. State primary standard and all-union verification schedule for means measuring magnetic moment, magnetic susceptibility and magnetization
Materials and systems for the protection and repair of concrete structures. Requirements to injection products and filling of cracks, voids and interstices
