Section 29-349-266 - Determination of blasting agent compositionsThe provisions of this section shall be considered when determining blasting agent compositions. The sensitivity of the blasting agent shall be determined by means of a No. 8 test blasting cap at regular intervals and after every change in formulation or as may be required by the State Fire Marshal.
(a) Oxidizers of small particle size such as crushed prills or fines may be more sensitive and hazardous than the ordinary prills and shall be handled with greater care.(b) No liquid fuel with flash point lower than that of No. 2 diesel fuel oil (125°F. minimum or legal) shall be used.(c) Crude oil and crankcase oil shall not be used because they may contain light ends that offer increased vapor-explosion hazards or gritty particles that tend to sensitize the resulting blasting agent.(d) If solid fuels are used, they shall be chosen so as to minimize dust-explosion hazard.(e) Metal dust (aluminum powder, etc.) peroxides, chlorates, or perchlorates shall not be used unless such operations are conducted in a manner approved by the State Fire Marshal.(f) Unusual compositions shall not be attempted except under the supervision of competent personnel equipped to determine the over-all hazard of the resulting compositions.(g) Suitable means shall be provided to prevent the flow of fuel oil to the mixer in case of fire. In gravity flow systems an automatic spring-loaded shutoff valve with fusible link shall be installed.Conn. Agencies Regs. § 29-349-266
Effective December 24, 1987