ISO standards download BS ISO 15727:2020 pdf download – UV-C devices — Measurement of the output of a UV-C lamp BS ISO 15727:2020 pdf download - UV-C devices — Measurement of the output of a UV-C lamp. 4.3.2 Magnetic ballasts Magnetic ballasts are used to start the UV-C lamp and may be either standard electromagnetic or energy-efficient... 02-18 Download Now