Fermator publishes EU-type examination certificates for its door locking devices, examined against EN 81-20:2020 and EN 81-50:2020, and states that its management follows ISO 9001 and ISO 14001. fermator.com (opens in a new tab)
Wittur's landing-door comparison table lists EN 81-20/50 and EN 81-58 E as standard on its door ranges, and describes the Stellar door as meeting IS 14665. wittur.com (opens in a new tab)