This draft contains the European amendment EN 60662:2012/prAA:2017-08, which specifies performance requirements for high-pressure sodium vapour lamps.
DIN EN 60662/AA:2017 history
2019DIN EN 60662:2019-12 High-pressure sodium vapour lamps - Performance specifications (IEC 60662:2011, modified); German version EN 60662:2012 + A11:2019 / Note: DIN EN 60662 (2013-03) remains valid alongside this standard until 2022-02-04.
2019DIN EN 60662:2019 High-pressure sodium vapor lamps – requirements for the way they work