QD Distance (Quantity Distance)

QD Distance, or Quantity Distance, is a safety guideline used in engineering and construction to determine the minimum space needed between explosive materials and other objects or structures. Its purpose is to prevent accidents by ensuring enough distance to safely contain potential explosions or hazards. The required distance varies based on the amount of explosive material and its type; larger quantities usually require greater separation. Essentially, QD Distance helps protect people, property, and the environment by providing a calculated buffer zone around explosive or hazardous materials.