Specifications

27
OPTIMAL STORAGE OF
STRUCTURIX FILMS
Handling and storage of X-ray lm is an
important aspect of the radiographical
process. Guidelines are given in several
international standards, i.e., ASTM
E1254-97. Following are the
recommendations for unexposed X-ray
lm.
First, storage facilities for unexposed
X-ray lms should provide adequate
protection from any penetrating radiation.
If the lms are stored for longer than three
months, background radiation may not
exceed
90 nGy/h (18 x 10-10 C/Kg/h). Films in
containers sealed by the manufacturer
should be stored with the lms on edge,
whenever possible. Storage temperature
should be between 4.4°C and 23.8°C at a
relative humidity range of 30 to 60
percent.
As higher temperatures accelerate certain
physicochemical processes in the
emulsion, Structurix lms should always
be stored in a cool place (within the above
mentioned temperature range).
While lms in opened packages are also
affected by humidity, it is advisable to
ensure that the relative humidity in the
storage room remains under 60 percent.
It is also recommended that the lms are
not stored in the immediate vicinity of
X-ray chemicals.
If Structurix lms are handled and stored
in accordance with the directions noted
above, we guarante their good quality at
least until the expiration date on the box.