What is ISO 4992‑1 standard about?
ISO 4992 is an international standard on steel castings that discusses various tests and examinations related to ultrasonic testings to ensure the quality of castings. ISO 4992‑1 is the first part of the ISO 4992 multi-series. ISO 4992‑1 specifies the requirements for the ultrasonic testing of steel castings (with ferritic structure) for general purposes and the methods for determining internal discontinuities by the pulse-echo technique.
ISO 4992‑1 applies to the ultrasonic testing of steel castings which have usually received a grain refining heat treatment and which have wall thicknesses up to and including 600 mm. For greater wall thicknesses, special agreements apply concerning the test procedure and the acceptance levels.
NOTE: ISO 4992‑1 does not apply to austenitic steels and joint welds.
Who is ISO 4992‑1 standard for?
ISO 4992‑1 on ultrasonic testing is relevant to:
- Steel casting manufacturer
- Quality control officer
- Ultrasonic testing engineer
Why should you use ISO 4992‑1 standard?
Ultrasonic testing is a family of non-destructive testing techniques. It utilizes sound waves to detect cracks and defects in parts and materials. It can also be used to determine a material's thickness, such as measuring the wall thickness.
ISO 4992‑1 provides you with the best guidance in performing Ultrasonic testing by providing information on material, test equipment and coupling fluid, ultrasonic instrument, preparation of casting surfaces for testing, test procedure.
As a user of ISO 4992‑1, you can ensure the quality of steel castings and even can detect very small flaws deep within a part by using the pulse-echo technique. ISO 4992‑1 assist the user in performing ultrasonic testing without any difficulties this helps you to improve the quality of products which helps gain customer trust and confidence in the product.
What’s changed since the last update?
BS ISO 4992‑1:2020 supersedes BS ISO 4992‑1:2006, which is withdrawn
The main changes compared to the previous edition are as follows:
- New definition added for “rim zone” and “non-measurable dimension
- Figure on the Division of wall section into zones was redrawn
- Subtitles added to Figures
- Table on Near-field lengths of various probes was corrected
