MECHANICAL FUNCTION AND SENSITOMETRIC TEST PROCEDURE FOR THE(SANITIZED)PROTOTYPE 9 1/2(SANITIZED)DEVELOPED UNDER PHASE II OF CONTRA

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A002400050043-4
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 24
• Document Creation Date: December 28, 2016
• Document Release Date: May 7, 2003
• Sequence Number: 43
• Publication Date: February 1, 1967
• Content Type: SUMMARY

STAT
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MECHANICAL FUNCTION AND SENSITOMETRIC
TEST PROCEDURE FOR THE "ROTOTYPE 9 1/2
DEVELOPED UNDER PHASE II OF
February 1967
Revised May 1/67
Declass Review by
NIMA/DOD
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STAT
STAT
STAT
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NOTE: The data contained in this Preliminary
Teat Procedure is subject to change as
a result of the Phase II evaluation pro-
gram, conducted prior to delivery of the
processor.
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CONTENTS
MECHANICAL FUNCTION EVALUATION
Section
1.
Preparation
2.
Temperature Control Tests
3.
Transport System Tests
4.
Drier Tests
5.
Daylight Operation Tests
Section
6.
Film Preparation
7.
Chemistry
8.
Sensitometric Performance
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MECHANICAL FUNCTION EVALUATION
Section 1 - Preparation
1. Examine the machine to ensure that all components, access panels,
magazine, etc. , are present.
Z. Visually inspect the machine for any signs of physical damage,
deep gouges, dents, etc.
3. After locating the machine in the operating area, check the level
of the machine about both axes.
4. Connect the processor to a floor drain, or to a sink.
NOTE. A sump pump is provided on the processor.
5. Connect the machine to a fresh water supply.
NOTE Provision is made on the processor for installation
of a water conservation (V. C. S.
system.
6. Ensure that all machine switches are in the OFF position, and
plug in the electrical supply.
NOTE 1 A 110/220 volt, 60 cycle, 3 wire system (L phase, and
neutral) 120 amp protected supply across each phase is
required.
NOTE Z The processor is fully sequenced for automatic
switching of electrical circuits through enabling
relays to ensure a gradual build-up to maximum
operating load.
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M.ECHANICAL FUNCTION EVALUATION
Section 2 - Temperature Control Tests
1. Fill all tanks with clean watgr and note the temperature after
filling.
2. To bring the processor tip to temperature the following sequence
is required.
a) Operate "power" switch to ON.
b) Check that the liquid level indicator lamp for all five tanks
is safe.
NOTE If any of the five tanks have a low liquid level this
light will indicate this, and by inter-locking circuitry
will prevent the recirculation pumps used for warm-up
only from being energized.
To bring tie solution in each of the five tanks up to temperature,
the manual "warm-up" switch for each must be operated. As
a result, the heater elements, the recirculation pumps ar
operated until process temperature is reached, and the "ready"
light for each tank illuminates. The booster heater is then.cut-
out, and the thermostatically controlled heater continues to
cycle to maintain the temperature.
d) When the "ready lights" illuminatethe "process" switch may
be operated to "ON" to start the air blower, vacuum pump, and
five seconds later the process pumps. (The #ecirculation
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Section 2 (cont. )
pumps automatically stop, and the main process pumps will
only operate if at this time the tank liquid levels are correct).
3. Following this the machine may be threaded and if required the
transport "Drive" switch operate to commence processing.
ter the "Drive" and "Process" switch are switched to OFF the
4. __
main process pumps cease and after 5 seconds the air blower and
vacuum pump also the five tanks remain on stand-by temperature
control with the recirculating pump functioning, unless the main
"Power" switch is turned OFF.
5. At regular intervals during the time the processor is coming
.up to its operating temperature of 110?F check the temperature
of the tanks with a standard mercury thermometer and also
record the temperatures shown on the indicator.
6. After the machine has reached temperature as determined by
a mercury thermometer check the temperature reading of the
indicators; and note the total warm-up time.
NOTE The indicated temperatures may be calibrated to the
mercury thermometer readings by means of the bezel
ring.
7. With the processor at operating temperature determine that the
temperature control system maintains it at this temperature
within a tolerance of - 0. 5?F over a period of several hours.
4
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Section 2 (cont. )
8. During this period also conduct regular visual checks for signs
of leakage from pumps, pipe connections, etc.
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MECHANICAL FUNCTION EVALUATION
Section 3 - Transport System Tests
1. With the tanks full of clean water at operating temperature,
and with temperature control systend operating, conduct the
following transport system tests.
2. Switch on the air blower.
3. Inspect the machine for undue vibration, check for any loose
screws or attachments, etc. Note and record the amperage
drawn by the blower.
4. Load the magazine with 1000 feet of obsolete film.
5. Thread the machine and turn on the transport drive system,
note sequence switching. (Sect. 2) Check the operation of
the vacuum capstan by pulling on the film to ensure that a
proper level of negative pressure is exerted on the film. No
slippage of the film over the capstan must occur, neither must
the vacuum produce marks or indentations on the film.
Check that the film take-up system is operating satisfactorily.
NOTE No excessive tension must be placed on the film,
nor must the film be permitted to build up a slack
. loop.
7. Check the film carefully throughout its length to determine if
there are any signs of base or emulsion scratching or scuffing.
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Section 3 (cont. )
Lf signs of scuffing are present:
a) Check the operation of each pump.
b) Check the operation of the blower.
c) Check the air flow through the air knife of each
impingement module.
d) Check the air flow through the drier air knives.
9. Transport the film at various significant speeds up to the
maximum required, and check transport system for smooth
operation. No jerky motion or visible pauses should be
apparent. The set film speeds should be checked with a
Tachometer.
10. During transport of the film periodically check that the tempera-
ture control system is maintaining the temperature in each tank
within the permitted tolerance.
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MECHANICAL FUNCTION EVALUATION
Section 4 - Drier Tests
The following functional checks of the drier are to be conducted
immediately prior to the sensitometric testing, since the drying
condition of photographic film is modified by immersion in
processing solutions, the processor must therefore be filled
with the correct solutions for these tests. Samples of the
specified films are to be used, but no image exposure is necessary
since the objective of these tests is to determine the drier perfor-
mance only.
1. Operate the processor at the processing speeds detailed for each
film type in the Sensitometric Evaluation Section. Both widths
of film, 70mm, and 9 1/2 ins. are to be used.
2. P .pcess a sufficient length of film (approx. 40 feet) of each width
an ypee
3. Check the sample for adequate drying by feel. Carefully examine
both surfaces for scratches, water marks, deformation or
shriveling.
4. During the above test period, and as consecutively longer as
necessary, check the integrity of all liquid systems for time
equivalent to a 1000 feet run at 10 Fpm, at least 10 times with
a 15 minute period between runs for checking of all pump seals,
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Section 4 (cont. )
pipe joints, connections, module seals, etc. , for signs of
leakage.
5. The infrared generator voltage should be increased slowly, only
to the minimum level required to dry the type of film under test.
Running the drier at higher voltages than necessary must be
avoided.
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MECHANICAL FUNCTION EV4LUATION
Section 5 - Daylight Operation Tests
The following tests are also to be conducted immediately prior
to the sensitometric evaluation, and are to determine the integrity
of the processor for daylight operation.
1. Place samples of unexposed film in the magazines in a darkroom.
Place the magazine in a brightly lit area. Remove the film samples
in a darkroom, tray process and examine for fogging due to light
leakage into the magazine.
2. Load the machine with unexposed film in a darkroom, place on
all covers, switch on all room lights, remove and process the
film in a darkroom. Examine for fogging due to light leakage
into the processor. If light leakage exists the location. may be
determined by the area of fogging in the length of film used. This
area should be examined to ensure that the covers have been
properly fastened.
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SENSITOMETRIC EVALUATION
Section 6 - General Film Preparation
1. The following film types in widths of 70mm, and 9 1/2 inch
are to be senaitometrically evaluated in the 9 1/2 I
2. The sensitometric performance of the processor is based on the
closest possible match to standard samples of each film exposed
and tray processed pen manufacturers standards as specified
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3. Reference Film Sample Exposure Data
The following exposing data was used for both the reference and
film samples.
1) Instrumentation Used
Meter Candles - 116600 - Amp. Setting, 7.0.
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4. Sensitometric film samples of each type, in each of the two widths,
are to be prepared in accordance with Fig. 1. These samples are
for use in evaluating the following parameters:
1. Gamma
2. Photographic Speed
3. D. min. - D. max.
4. Development uniformity edge to edge
5. Resolution
6. Complete Fixation
7. Archival Quality per ASA PHI. 28-1957.
8. Replicate processing runs are to be made to evaluate
the reproducibility.
9. Oxidation of Developer
5. To determine the capability of the replenishing system, 1000 feet
lengths of the five films types are to be prepared with the tests
pattern arrangement shown in Fig. 1 duplicated continuously through-
out the 1000 feet length. -
6. After preparation and exposure of the above test films they are
to be conditioned as follows:
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STAT
4. Sensitometric film samples of each type, in each of the two widths,
are to be prepared in accordance with Fig. 1. These samples are
for use in evaluating the following parameters:
1. Gamma
2. Photographic Speed
3. D. min. - D. max.
4. Development uniformity edge to edge
5. Resolution
6. Complete Fixation
7. Archival Quality per ASA PHI. 28-1957.
8. Replicate processing runs are to be made to evaluate
the reproducibility.
9. Oxidation of Developer
5. To determine the capability of the replenishing system, 1000 feet
lengths 'of the five films types are to be prepared with the tests
pattern arrangement shown in Fig. 1 duplicated continuously through-
out the 1000 feet length.
6. After preparation.and exposure of the above test films they are
to be conditioned as follows:
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The samples should be kept under conditions which will nOt signi-
ficantly affect the latent image. A period of two hours after ex-
posures, to ensure latent image stability must elapse before the
film sample is either processed, or placed under refrigeration.
The temperature of the refrigerator must be maintained at 450F.
After removal from the refrigerator at least three hours at normal
room temperature must be allowed before processing.
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Section 7 - Chemistry
1. General - The developer formulated in Phase 1 of this program
was a modification of the Navy Rapid Developer, NRD-29
proprietary chemistry, as detailed in Appendix W. The prototype
has been designed on the basis of the results obtained in
the breadboard in Phase 1 with this chemistry.
2: Final acceptance tests
at the request of the customer, will
be conducted first with standard chemistry provided
compared to results obtained with the chemistry the machine was
designed for.
3. The processor is designed around a maximum processing rate of
10 Fpm. The normal processing temperature is 110?F. The film,
transport system is variable between zero and 30 Fpm to provide the
necessary flexibility in processing parameters.
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Section 8 Sensitometric Performance
1. The sensitometric performance of the processor will be evaluated
as follows:
a) ,,&veness of density - a density variation of not more than
0. 05 at a nominal density of 1. U.
Gamma, speed, D. min., D. max.., resolution. - Compared
to reference film samples.
c) Fixation. Sulfide tests for complete fixation.
d) Wash water - consumption to be determined. Based on
archival quality requirements.
e) Archival quality - per ASA PH1-28-57.
f) With a replenishment system, comprising plug-in bottles,
a maximum of 1000 feet of 9 1/2 inch film is to be processed
and evaluated.
2. The processor is to be operated for each type of film with the
chemistry specified, at a temperature throughout the processor
of 110?F, at the required processing rate for the particular film.
Each film sample is to be processed and read, and D log E curves
of the reference samples prepared as described previously.
3. The resolution targets are to be evaluated and plotted, also the
uniformly exposed areas for uniformity of development and mottling.
4. On completion of Phase II, in-house evaluation program, the data
representing the maximum performance of the processor will be
provided as reference for the final test procedure.
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APPENDIX 'A'
1. The formula for NRD-29 (Navy Rapid Developer for Aerial Film)
as used in the testing is as follows:
Water 100?F
Metal
Sodium Sulfite, Des
Hydroquinone
Sodium Hydroxide
Potassium Bromide
Water to Make-up
Z. Stop bath 2% solution acetic acid
STAT 3.
STAT
Hypo Eliminator
750.0 Ml
5. 0 grams
50.0 grams
20.0 grams
10.5 grams
8. 0 grams
1.0 liter
(chemistry
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TEST SAMPLES
9%
PCH
LEADER.
r
JEta
uN VO
TYP 2 PL.CS
SPLIT WEDGE
D MAY
//! Od l "r
RESOLUTION TARGeT LEADER.
AF 1951 UNIFORM! L% EXPOSED AREA
/OF NET DENS17Y OF 1.0
ff r,
le 00 /V-0 0
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