Chapter 20

Question 1

Phenidone

Answer 1

A reducing agent, works quickly->Grays

Question 2

Hydroquinone

Answer 2

A reducing agent, works slowly ->Blacks

Question 3

Sodium Carbonate

Answer 3

Activator -> Swells and softens gelatin

Question 4

Potassium Bromide

Answer 4

Restrainor -> Reduces the activity

Question 5

Sodium Sulfite

Answer 5

Perservaative ->controls oxidation and acts as a buffer. (Found in developer and fix)

Question 6

Glutaraldehyde

Answer 6

Hardener ->Reduces gelatin swelling

Question 7

Solvernt

Answer 7

Is water must be 5 deg F less

Question 8

At what step is the image visible?

Answer 8

The developer step

Question 9

Manifest is

Answer 9

Permanent visible record

Question 10

Darkroom

Answer 10

Light proof lab to load or unload cassettes.

Question 11

Darkroom should be always:

Answer 11

Ventilated, 60-70 Deg F, Humidity 30-60%

Question 12

Name all darkroom entrance styles?

Answer 12

Maze entry, single door, double interlocking, revolving doors.

Question 13

Walls adjacent to darkroom should be how thick:

Answer 13

1.6mm or 1/6in

Question 14

Safelight

Answer 14

low light illumination in order to work.

Question 15

Safelight controlled by:

Answer 15

Wattage 7-15, filter type, distance which should be 3-5 ft.