NFPA 495-2018 Explosive Materials Code.
6.5.2 Piles of ammonium nitrate and warehouses containing ammonium nitrate shall be separated from readily combustible fuels. 6.5.3 Caked oxidizer, either in bags or in bulk, shall not be loosened by blasting. 6.5.4 Every magazine used for the storage of blasting agents shall be under the supervision of a competent person who is at least 21 years old. 6.6 Transportation of Packaged Blasting Agents. 6.6.1 Where blasting agents are transported in the same vehi‐ cle with other explosive materials, all the requirements of Chapter 8 shall be met. 6.6.2 Vehicles Transporting Blasting Agents. Vehicles transporting blasting agents shall be driven by and in the charge of only those drivers who are at least 21 years old, who are capable, careful, and reliable, and who possess a valid motor vehicle operator’s license. The driver shall be familiar with state vehicle and traf‐ fc laws.
7.1 Scope. Water gels, slurries, and emulsions classifed as Division 1.1D or Division 1.5D explosives in accordance with U.S. DOT regulations shall be manufactured, transported, stored, and used as specifed by this code, except as otherwise specifed in this chapter. 7.2 Fixed Location Mixing. 7.2.1 Buildings or other facilities used for mixing water gels, slurries, or emulsions shall be located in accordance with Table 9.4.1(a) through Table 9.4.1(d) with respect to inhabited build‐ ings, passenger railroads, and public highways. In determining the distances separating highways, rail‐ roads, and inhabited buildings from potential explosions, as specifed in Table 9.4.1(a) through Table 9.4.1(d), the sum of all masses that can propagate [i.e., that lie at distances less than those specifed by Table or Table] from either individual or combined donor masses shall be included. Where ammonium nitrate is required to be included, only one-half of its mass shall be used because of its reduced blast effects. 7.2.2 Buildings used for the mixing of water gels, slurries, or emulsions shall comply with the following requirements, except where otherwise specifcally approved by the authority having jurisdiction: (1) Buildings shall be constructed of noncombustible mate‐ rials or of sheet metal on wood studs. (2) Floors shall be of concrete or other noncombustible material. (3) Floors shall be constructed without open foor drains and without piping into which molten materials could fow and become confned in the event of fre. (4) Where fuel oil is used, fuel oil storage facilities shall be separated from the mixing plant and located so that the oil will drain away from the mixing building in case of tank rupture.NFPA 495 pdf download.