What is ISO 10893‑7 - Digital radiographic testing about?
ISO 10893 is a series of international standards on Non-destructive testing of steel tubes that discusses the best procedures and test methods of digital radiographic testing. ISO 10893‑7 is the seventh part of a series of documents on Non-destructive testing. ISO 10893‑7 specifies the requirements for digital radiographic X-ray testing by either computed radiography (CR) or radiography with digital detector arrays (DDAs) of the longitudinal or helical weld seams of automatic fusion arc-welded steel tubes for the detection of imperfections. ISO 10893‑7 specifies acceptance levels and calibration procedures.
ISO 10893‑7 is also applicable to the testing of circular hollow sections.
Who is ISO 10893‑7 - Digital radiographic testing for?
ISO 10893‑7 on Non-destructive testing of steel tubes is beneficial for
- Industrial radiographer
- Manufacturer of steel tubes
- Industrial digital x-ray machine manufacturer
Why should you use ISO 10893‑7 - Digital radiographic testing?
Digital radiographic testing makes use of X-rays, produced by an X-ray tube, or gamma rays, produced by a radioactive isotope. The basic principle of radiographic inspection of welds is the same as that for medical radiography.
ISO 10893‑7 provides guidance on requirements, test methods, test results of digital radiographic X-ray testing.
As a user of ISO 10893‑7, you can be ensured of requirements for digital radiographic testing. With obedience and compliance to ISO 10893‑7, you can efficiently detect undercuts on the inside and outside welds, incomplete penetration in welding, cracks, and other imperfections.
With ISO 10893‑7 you can be ensured that the products consistently meet and exceed quality assurance targets.
What’s changed since the last update?
BS EN ISO 10893‑7:2019 supersedes BS EN ISO 10893‑7:2011, which is withdrawn.
The main changes compared with the previous edition are as follows:
- Terms and definitions from ISO 17636‑2 have been included
- A safety warning for X and gamma rays has been added
- The symbols for mathematical formula have been changed in accordance with the ISO/IEC Directives
- “Contact Technique” has been deleted from the test method
- The requirements for duplex wire IQI position have been added
- A reference to ISO 17636‑2 for the calibration of ddas has been added
