December 20, 2019
As more schools, airports and places of business install metal detectors for security, the market continues to grow. A recent market survey predicts it will grow 4.5 percent to $880 million by 2024, up from $680 million in 2019.
Because so many more organizations are now relying on metal detectors, scientists at the National Institute of Standards and Technology (NIST) have put forth metal detection testing standards. Three have been published by the ASTM International standards organization and a fourth one is still in development.
“This is the first time that product conformity standards have been created for these machines,” said NIST in a release on the news. “In addition to increasing confidence, the standards will shorten the time needed for testing new products, which will likely bring down costs for users.”
The standard currently under development relates to walk-through metal detectors (WTMDs), which work by generating an alternating magnetic field that is altered when a metal passes through its portal.