Reaffirmed 2018

1. Scope

1.1 This standard specifies the method of mell;surement of the light output of cinematograph projectors for narrow gauge film ( 16 mm and less ).

2. References

2.1 The following Indian standards are necessary adjuncts to this standard:

IS 1248 ( Part 2 ) ; 1983 Direct acting indicating analogue electrical measuring instruments and their accessories: Part 2 Ammeters and voltmeters ( second revision )

IS 4496 : 1968 Screen luminance for the projection of 16 mm film by incandescent lamps

IS 4497 ; 1977 16 mm portable sound- and picture cinematograph projectors ( first revision)

IS 5700 : 1977 Cinematograph screens ( first revision)