Standards on Bomb Suits Under Development

Bomb suit manufacturers run tests on their protective suits to ensure they can withstand an explosion but lack a single set of requirements the suits must meet before they can be sold.

When a bomb technician inspects a potential explosive device, the bulky protective suit might be the only defense he or she has. Bomb suit manufacturers run tests on their protective suits to ensure they can withstand an explosion, but they lack a single set of requirements that the suits must meet before they can be sold.

To ensure bomb suits do provide sufficient protection, several federal agencies are working with first responders to develop a standard for minimal performance requirements. If adopted, the requirements would be the first nationwide standard governing bomb suits. The Department of Homeland Security Science and Technology Directorate Test & Evaluation and Standards Division and the Department of Justice National Institute of Justice (NIJ) supported the effort to develop a standard at the urging of the response community, said Debra Stoe, senior program operations specialist and physical scientist for the NIJ Office of Science and Technology Operational Technologies Division. It began when NIJ funded an effort by the National Institute of Standards and Technology and the U.S. Army Natick Soldier Research Development and Engineering Center to analyze technology needs facing first responders.

During that process, bomb technicians mentioned the need for a bomb suit standard. "When a practitioner comes to us and says 'We have a need for this,' we look [to see whether there] is something we can do," Stoe said. In response, TSD and NIJ funded technical analysis of bomb suit capabilities by NIST and NSRDEC. The research formed the foundation for the standard's development.

Technicians wanted a standard to help bomb squads make educated decisions when purchasing equipment, according to Martin Hutchings, a retiree of the Sacramento County, Calif. Sheriff's Department bomb squad and NIST liaison to the National Bomb Squad Commanders Advisory Board. Once the standard is adopted, bomb squads will know suits meet the performance requirements. "The bomb suit is such an important piece of equipment that a standard and certification program was needed to ensure a bomb technician's safety," Hutchings said.

The agencies first researched the most common types of explosives bomb squads encounter, said Philip J. Mattson, deputy director of the Office of Standards at S&T. Federal officials and bomb technicians sought out a standard suit to shield first responders from the most common explosives, knowing that no suit can protect against every explosion. NSRDEC personnel blew up, burned, and projected fragments at suits to determine what kinds of tests suits would need to pass to ensure they protect bomb technicians adequately. According to the NIST Office of Law Enforcement Standards, NSRDEC, and NIJ, the drafted standard contains requirements for:

  • cushioning the spine and head during impact
  • blast and thermal heat protection
  • freedom of motion to work efficiently
  • maximum weight restrictions
  • rapid removal, such as for emergency medical treatment
  • freedom of motion (allowing sufficient dexterity to pick up a coin from the ground)
  • defogger performance to prevent the helmet visor from clouding

Having a standard will give some assurance of quality to DHS and other agencies that award grants to bomb squads for equipment purchases, Mattson said. If the standard is adopted by the end of 2010 as hoped, DHS will change its grants process to ensure awards are spent on bomb suits that meet the requirements. Once NIJ formally establishes a standard, it will be reviewed every three to five years to ensure it meets current needs of first responders.

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