anchor.diff:  	overlays_file = 'icons/obj/doors/airlocks/external/overlays.dmi'
   	note_overlay_file = 'icons/obj/doors/airlocks/external/overlays.dmi'
   	assemblytype = /obj/structure/door_assembly/door_assembly_ext
  -	req_access = list(ACCESS_EXTERNAL_AIRLOCKS)
   
   	/// Whether or not the airlock can be opened without access from a certain direction while powered, or with bare hands from any direction while unpowered OR pressurized.
   	var/space_dir = null
  
positive.code: 	autoclose = FALSE
  	frequency = FREQ_AIRLOCK_CONTROL
  	heat_proof = TRUE
  	req_access = list(ACCESS_ORDNANCE)
  
  /obj/machinery/door/airlock/research/glass/incinerator/ordmix_interior
  	name = "Mixing Room Interior Airlock"
  
negative.code: 	autoclose = FALSE
  	frequency = FREQ_AIRLOCK_CONTROL
  	heat_proof = TRUE
  
  /obj/machinery/door/airlock/public/glass/incinerator/atmos_interior
  	name = "Turbine Interior Airlock"
  