United system of corrosion and ageing protection. Corrosion resistant steels and alloys. Methods of accelerated tests for resistance to pitting corrosion
Safety of power transformers, power supplies, reactors and similar products. Part 2-1. Particular requirements and tests for separating transformers and power supplies incorporating separating transformers for general applications
Accessibility for the disabled people of urban infrastructure and services. General requirements. Indicators and criteria for assessing the level of availability
