EXPOSED FILM ROLL: 1.5M strip
Any form of spool-wound photographic film shielded from white light exposure by a paper covering is referred to as an exposed film roll. The phrase originally meant the opposite of sheet film. Because of its resemblance to a shotgun cartridge, roll film was first sometimes referred to as “cartridge” film, which is confusing. Learning Outcome GCSE Biology – The Effect of pH or temperature on Trypsin. Supplied as 1.5M strip