ISO 4993:2015 pdf download.Steel and iron castings ——Radiographie testing.
9 Film position plan
9.1 Film position plan for pilot radiography
When requested in the order or enquiry, preliminary shooting sketches shall be prepared by the supplier for submission with the radiographs of the pilot casting for approval by the customer. These sketches shall show the area of the part to be examined and shall include the following information for each exposure:
a) gamma source or kilovoltage used:
b) location of radiation source in relation to the area covered and the film;
c) physical size of the source:
d) area covered by the film:
e) placement of the film and location markers:
f) film-to-source distance:
g) placement of the image quality indicators or penetrameters and the image quality value;
h) section thickness:
i) number and types of tilms used:
j) film identification:
k) thickness and type of intensifying screens;
l) value of density required:
m) geometrical unsharpness;
n) conditions of development of films.
9.2 Film position plan for production radiography
The preliminary film position plan may. by agreement between the supplier and the purchaser. he adjusted at the time of the examination of the first casting sample. Subsequent production castings shall be examined in accordance with the finalized shooting sketches, which shall include the information listed in 9j. Any new criteria established for the nidiography of the production castings. such as changes in the percentage of coverage for the part or changes in the acceptance standards, shall be stated.
9.1 Film position plan for pilot radiography
When requested in the order or enquiry, preliminary shooting sketches shall be prepared by the supplier for submission with the radiographs of the pilot casting for approval by the customer. These sketches shall show the area of the part to be examined and shall include the following information for each exposure:
a) gamma source or kilovoltage used:
b) location of radiation source in relation to the area covered and the film;
c) physical size of the source:
d) area covered by the film:
e) placement of the film and location markers:
f) film-to-source distance:
g) placement of the image quality indicators or penetrameters and the image quality value;
h) section thickness:
i) number and types of tilms used:
j) film identification:
k) thickness and type of intensifying screens;
l) value of density required:
m) geometrical unsharpness;
n) conditions of development of films.
9.2 Film position plan for production radiography
The preliminary film position plan may. by agreement between the supplier and the purchaser. he adjusted at the time of the examination of the first casting sample. Subsequent production castings shall be examined in accordance with the finalized shooting sketches, which shall include the information listed in 9j. Any new criteria established for the nidiography of the production castings. such as changes in the percentage of coverage for the part or changes in the acceptance standards, shall be stated.
