DIN ISO 3434:1995-11

The document specifies construction characteristics, optical qualities and heating circuit dimensions for interchangeability (outer dimensions and glass thickness), tests, marking and designation of heated glass panes for ships' rectangular windows (H series see ISO 3903:1993). It includes the conditions with which they are required to comply to ensure the safety of ships in times of frost or snow, particularly during manoevres in port. Heated glass panes are used on ships principally for the windows of wheel-houses and bridges, and also in enclosed locations used for look-out and manoevring purposes. The document specifies heated glass panes which are intended for use at temperatures down to -40 °C.