Processing kodak motion picture films, module 3 analytical procedures

Analysis Order for Photographic Processing Solutions
ULM-0006-1
INTRODUCTION
Certain components of photographic processing solutions
tend to degrade with time. It is important that some analyses
of these photographic processing solutions be performed
prior to others. The analysis order is basically the same for
all color developers, first developers, bleaches and fixers.
The actual order will depend on specific components present
in the photographic processing solutions. Prior to the start of
analysis, when the sample is originally collected, it is
important to minimize unnecessary air space in the sample
bottle. If the bottle is plastic, it should be "squeezed" off to
facilitate this,otherwise, nitrogen can be blown into the head
space above the solution to prevent oxidation. Similar
protection from air should be taken whenever the sample
bottle is opened.
ANALYSIS ORDER
The following gives the recommended analysis order for
various photographic processing solutions. The
recommended order has been broken down by solution type
into K-14 color developers, other color developers, first
developers, bleaches/bleach-fixes, fixers, and ferri-type
bleaches. The analysis order is listed in descending order. If
the sample volume submitted for testing is insufficient to
perform all requested tests; pH should be perfrmed first, with
care taken to minimize effects of oxidation, then the
destructive tests are performed in the order listed. Order of
analysis within brackets may be arbitrary.
K-14 Color Developers
Analysis
Order
Components
Cyan Magenta Yellow
Do First Sulfite Sulfite Sulfite
BD-98 NA BD-89
C-16 M-38/CZA Y-55
CD-4 CD-3 CD-6
AF-2 HS-104 AF-2
NA SCN NA
pH pH pH
Density Density Density
Do Last Halides Halides Halides
1
2
Other Color Developers
Analysis Order Components *
Do First Sulfite
* All components may not be found in all Developers.
First Developers
Processing KODAK Motion Picture Films, Module 3, Analytical Procedures H24.03 1
BD-98
HAS
Color Developing Agent
Citrazinic Acid
Benzyl Alcohol
Stain Reducing Agent
Carbonate
pH
Density
Do Last Halides
Analysis Order Components
Do First Sulfite
Developing Agent
Thiocyanate
Total Alkalinity
pH
Density
Do Last Halides
1
2
1
2