Processing Room Flashcards
Protects the film from white light during lrocessing
Processing room
Films are ________ to _____ time sensitive before exposure
2 to 8
Films can be affected by
Heat Humidity Static electricity Pressure Chemical fumes
Most common result of uncontrolled factors
Fogging
Work surfaces should be grounded to prevent
static electricity
Maintain proper humidity by how many percent
40% to 60%
Measures tge amount of humidity
Psychrometer
Temperature of the room should be
18 C to 24 C
65 to 75 F
Fumes could be
Toxic
Corrosive
Carcinogenic
Impairment of the immune system
Darkroom disease
Ventilation should be ________
8 to 10 room changes of air per hour
Ventilation ducts should be located
Near the floor
Wall should be painted with
Pastel colors
For walls, it is recommended to have this type of paint
Epoxy paint with matte finish
Enamels
Shielding should be ______ to source of radiation
Adjacent
Adequate drainage should handle ____________ the max outflow of chemicals
2.5 times
A typical film should be able to remain in the safelight for _______ w/o fogging
40 secs
Safelights should be mounted at least _______ from the loading counters
3 to 4 feet
Bulb should be from
7.5 to 15 watts
Most common type of film
Blue-violet sensitive films
Monochromatic
Sensitive to colors blue, indigo and violet
Monochromatic/ blue violet sensitive film
Safelight for monochromatic films
Amber safelight
Monochromatic films use
Calcium tungstate
Monochromatic films samples
Kodak wratten 6b
Kodak mor-lite
Sensitive to green portion of the spectrum in addition to blu and violet
Orthochromatic films
Safelight used in orthochromatic
Pure red
Orthochromatic films use
Gadolinium oxisulfides
Gadolinium oxibromide
Lanthanides
Orthochromatic films samples
Kodak GBX
LED
Safelight testing is done
Annually
The test should be
> 40 secs
Strips should not vary in OD by
0.2
