State system for ensuring the uniformity of measurements. Photovoltaic devices. Part 7. Computation of the spectral mismatch correction for measurements of photovoltaic devices
Automation systems and integration. Evaluating energy efficiency and other factors of manufacturing systems that influence the environment. Part 3. Environmental performance evaluation data aggregation process
Household and similar electrical appliances. Safety. Part 2-91. Particular requirements for walk-behind and hand-held lawn trimmers and lawn edge trimmers