Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1100 V. Part 2-16. Particular requirements and tests for switch mode power supply units and transformers for switch mode power supply units
Determination of certain substances in electrotechnical products. Part 3-1. Screening. Lead, mercury, cadmium, total chromium and total bromine using X-ray fluorescence spectrometry
Crossbar-type telegraph switching stations (substations). Signals and procedures of interaction between stations (substations) during the setting up of connections at the telex (AT-50), data transmission (PD-200) and gentex networks
