California Code of Regulations
Title 19 - Public Safety
Division 1 - State Fire Marshal
Chapter 10 - Explosives
Subchapter 4 - Use and Handling of Explosives
Article 10 - Blasting Agents
MIXING OF BLASTING AGENTS
Section 1572.3 - Blasting Agent Composition
Current through Register 2024 Notice Reg. No. 38, September 20, 2024
The provisions of this Article 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 REQUESTED BY THE "CHIEF" HAVING JURISDICTION.
(a) Oxidizers of small particle size, such as crushed prills or fines, may be more sensitive and hazardous than the ordinary prills and should be handled with greater care.
(b) No liquid fuel with flash point lower than that of No. 2 Diesel fuel oil (110F. minimum or equal) 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 dusts (aluminum powder, etc.), peroxides, chlorates, or perchlorates shall not be used unless such operations are conducted in a manner approved by the "Chief" having jurisdiction.
(f) Unusual compositions shall not be attempted except under the supervision of competent personnel equipped to determine the overall hazard of the resulting compositions.
