Mortise-locks depending on this standard are for hinged doors on ships. The project will contains the connecting measures and the materials the locks consitsts.
DIN 81301:2003 history
1970DIN 81301:2023-02 Mortise-locks with latch-bolt for hinged doors on ships
1970DIN 81301 E:2021-08 Mortise-locks with latch-bolt for hinged doors on ships
2003DIN 81301:2003 Mortise-locks with latch-bolt for hinged doors on ships