Ariz. Admin. Code § 11-1-253

Current through Register Vol. 30, No. 50, December 13, 2024

Section R11-1-253 - On-site Mixed Water Gels

A. Ingredients for on-site mixed water gells shall be stored as set forth in this Section.

1. Ingredients in themselves classified as Class A or Class B explosives shall be stored in conformity with this Code.

2. Prilled, grained, or granulated ammonium nitrate shall be stored in accordance with R11-1-262 of this Code. If ammonium nitrate is stored in the vicinity of explosives or blasting agents, the separation distances specified in R11-1-262 of this Code shall be observed.

3. Liquid ammonium nitrate or ammonium nitrate-sodium nitrate solutions shall be stored in tank cars, tank trucks, or permanent tanks. Spills or leaks which may contaminate combustible materials shall be cleaned up immediately.

B. If electric power is used, it may be furnished by cable from an outside source or by a self-contained motor generator. In the case of a self-contained power source, it shall be located at the end of the storage container opposite that at which the blasting agent is discharged. It shall have adequate capacity for the loads to be expected and be equipped with suitable overload protection devices.

C. Electric wiring carrying voltages greater than 12 volts shall be in armored cable or in conduit and, if dry ingredients are employed, the wiring shall conform to the requirements of Class II, Division 2 of the National Electrical Code. The materials protecting the electric wiring must be of such composition that they will not be chemically attacked by the ingredients being processed.

D. Mixing equipment for on-site mixed water gels shall comply with the requirements of this Section:

1. All electric motors, electrically operated proportioning devices, etc., shall be electrically bonded.

2. All electric motors, electrically operated proportioning devices, etc., used for dry ingredients shall conform to the requirements of Class II, Division 2 of the National Electrical Code.

3. The entire loading and mixing equipment shall be cleaned periodically to ensure against accumulations of ingredients.

Ariz. Admin. Code § R11-1-253

Former Rule 2:53.