… Other plates and film, with any side exceeding 255 mm …
Classification opinions
… 1. Plates, unexposed, consisting of a sheet of sensitised … printing and chemical etching. Adoption : 1963 … 1. Plates, presensitised, unexposed (dimensions : 550 mm x 650 mm x 0.3 … (UV) light sensitive chemicals (a mixture of organic resins (phenolic) and diazo compounds). When exposed with UV …