New Jersey Administrative Code
Title 12 - LABOR AND WORKFORCE DEVELOPMENT
Chapter 190 - EXPLOSIVES
Subchapter 9 - BLASTING AGENTS
Section 12:190-9.4 - Equipment used in mixing
Current through Register Vol. 56, No. 18, September 16, 2024
(a) Equipment used for mixing blasting agents shall conform to this section.
(b) The design of the mixer shall minimize the possibility of frictional heat, compaction, and especially confinement. All bearings and drive assemblies shall be mounted outside the mixer and be protected against accumulations of dust. All surfaces shall be accessible for cleaning.
(c) Mixing and packaging equipment shall be constructed of materials compatible with the fuel-ammonium nitrate composition.
(d) Suitable means shall be provided to prevent the flow of fuel oil to the mixer. In gravity flow systems, an automatic springloaded shutoff valve with a fusible link shall be installed.