The NORM survey typically refers to a study or assessment focusing on "Naturally Occurring Radioactive Materials" (NORM).

A NORM (Naturally Occurring Radioactive Material) survey in NDT is a process used to detect and measure the levels of natural radioactive materials that may accumulate in industrial equipment and facilities. These materials, which can include radium, uranium, and thorium, often concentrate in pipes, vessels, and other equipment used in industries such as oil and gas, mining, and water treatment.

During a NORM survey, specialized equipment is used to identify and quantify radioactive contamination. The purpose of this survey is to ensure that the levels of radiation do not pose a risk to workers, the general public, or the environment. By conducting regular NORM surveys, companies can comply with regulatory requirements, implement appropriate safety measures, and manage radioactive waste effectively. NORM surveys are essential for ensuring safety and compliance with regulations in industries dealing with radioactive materials.

NORM surveys are often conducted in industries such as oil and gas, mining, and mineral processing where these materials may be encountered as by-products or contaminants.