The document specifies the DIN-test films BF 17A, BF 17F and BF 35A for adjusting the magnetic sound tracks on magnetic films 17,5 mm and 35 mm for use on magnetic film transport for sound recording and reproduction.
DIN 15538-1:2000 history
2000DIN 15538-1:2000-04 Magnetic film 17,5 mm and 35 mm - Part 1: DIN-reference films BF 17A, BF 17F and BF 35A
2000DIN 15538-1:2000 Magnetic film 17,5 mm and 35 mm - Part 1: DIN-reference films BF 17A, BF 17F and BF 35A