ISO 17636-1:2013 pdf download.Non-destructive testing of welds-Radiographic testing -Part 1:X- and gamma-ray techniques with film.
This part of ISO 17636 specifies techniques of radiographic examination of fusion welded joints in metallic materials using industrial radiographic film techniques.
This part of ISO 17636 applies to the joints of plates and pipes. Besides its conventional meaning, “pipe” as used in this International Standard covers other cylindrical bodies such as tubes, penstocks, boiler drums, and pressure vessels.
NOTE This part of ISO 17636 complies with ISO 5579•hhl
This part of ISO 17636 does not specify acceptance levels for any of the indications found on the radiographs.
If contracting parties apply lower test criteria, it is possible that the quality achieved is significantly lower than
when this part of ISO 17636 is strictly applied.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 5576, Non-destructive testing — Industrial X-ray and gamma-ray radiology — Vocabulary
ISO 5580, Non-destructive testing — Industrial radiographic illuminators — Minimum requirements
ISO 9712, Non-destructive testing — Qualification and certification of NDT personnel
ISO 11699-1, Non-destructive testing — Industrial radiographic film — Part 1: Classification of film systems for industrial radiography
ISO 11699-2, Non-destructive testing — industrial radiographic films — Part 2: Control of film processing by means of reference values
ISO 19232-1, Non-destructive testing — Image quality of radiographs — Part 1: Image quality indicators (wire type) — Determination of image quality value
ISO 19232-2, Non-destructive testing — Image quality of radiographs — Part 2: Image quality indicators (step/hole type) — Determination of image quality value
ISO 19232-4, Non-destructive testing — Image quality of radiographs — Part 4: Experimental evaluation of image quality values and image quality tables
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 5576 and the following apply.
3.1
nominal thickness
t
nominal thickness of the parent material only where manufacturing tolerances do not have to be taken into account
3.2
penetration thickness change
change of penetrated thickness relative to the nominal thickness due to beam angle
3.3
penetrated thickness
w
thickness of material in the direction of the radiation beam calculated on the basis of the nominal thicknesses of all penetrated walls
3.4
object-to-film distance
b
distance between the radiation side of the radiographed part of the test object and the film surface measured along the central axis of the radiation beam
3.5
source size
d
size of the radiation source or focal spot size
NOTE See EN 12679 or EN 12543.
3.6
source-to-film distance.ISO 17636-1 pdf download.