Chapter 1. STATE MINE INSPECTOR

All tanks must be labeled as to contents. Historical Note Former Rule 20:15.

All tanks shall be provided with a safe means of measuring content level. Historical Note Former Rule 20:16.

All reagent containers must be labeled as to contents and stored in designated areas. Historical Note Former Rule 20:17.

All liquid storage tanks shall be supplied with suitable means of containment or disposal to provide safe disposal of contents in event of tank failure. Liquid storage tanks must also be equipped with overfill piping to contain overflow to a suitable and safe disposal area. Histo…

All storage tanks must be vented except those under pressure. Historical Note Former Rule 20:19.

Reagent containers shall be stored so as to protect the contents from the effects of weather if such exposure would create a hazardous situation. Historical Note Former Rule 20:20.

Oxidizing agents shall not be stored adjacent to reducing agents or flammable material where container failure could allow combining of materials. Historical Note Former Rule 20:21.

Suitable warning signs shall be posted at all reagent storage areas limiting entry and smoking, where a hazard exists. Historical Note Former Rule 20:22.

Reagent tanks capable of emitting toxic vapor shall be either located outside the mill building or positively vented to the outside. Historical Note Former Rule 20:23.

Reagent stocks should be rotated on a first-in, first-out basis. Historical Note Former Rule 20:24.

Stacking of reagent containers shall not present a hazard. Historical Note Former Rule 20:25.

Disposal of obsolete reagents should be accomplished according to safe procedure. Historical Note Former Rule 20:26.

Broken containers or spilled reagents must be cleaned up immediately. Historical Note Former Rule 20:27.

Reagent storage facilities shall be well drained. Storage facilities should be constructed of fire-resistant material if reagents stored therein are flammable or corrosive to wood. Historical Note Former Rule 20:28.

Heat shall not be applied to storage tanks except in compliance with recognized Trade Association Handling Code. Historical Note Former Rule 20:29.

Hazardous reagents shall be mixed in areas that minimize personnel exposure. Historical Note Former Rule 20:31.

All personnel mixing reagents must be trained in the mixing procedure. Historical Note Former Rule 20:32.

Phosphorous pentasulfide shall be added slowly to the sodium hydroxide solution from a container large enough to hold just the amount needed for one bath. This conveyor shall be constructed of spark-resistant materials, driven by an explosion-proof motor, thermostatically control…

Men designated for hazardous reagent mixing must be certified by the mill superintendent and a copy of such names filed in the office of the mill superintendent and available to the Arizona Mine Inspector. Historical Note Former Rule 20:34.

All mixing tanks and holding tanks shall be labeled as to contents. Historical Note Former Rule 20:35.

If a mixing tank is used for different reagents, and if a hazard exists, the tank and distribution lines should be flushed after mixing each reagent. Historical Note Former Rule 20:36.

Reagent mixes with exothermic reaction shall be subject to positive temperature control if such reaction can create a hazard. Historical Note Former Rule 20:37.

Hazardous reagent mixing areas must have adequate ventilation. Historical Note Former Rule 20:38.

Suitable warning signs shall be posted at all reagent mixing areas, limiting entry and smoking where a hazard exists. Historical Note Former Rule 20:39.

Hydrogen shall be stored in an open area which shall be roofed to prevent direct sunlight from heating the containers. The area shall be posted with “No Smoking” or “Open Flame” signs. ARTICLE 21. ASSAY AND METALLURGICAL LABORATORIES The rules in this Article are adopted in accor…

All mixing or heating of chemicals that may produce noxious fumes or gases must be performed under a hood or performed in adequately ventilated enclosures. Historical Note Former Rule 21:01.

Hoods must be positively ventilated to the outside. Historical Note Former Rule 21:02.

There shall be sufficient velocity of air moving through the hood to remove all fumes or gas produced in the hood. Historical Note Former Rule 21:03.

When a hood fails to exhaust properly, it will be promptly reported to maintenance and repaired before being used again. Historical Note Former Rule 21:04.

A means shall be provided to assure that no unplanned recirculation of exhaust air occurs. Historical Note Former Rule 21:05.

Hoods and ducts that are to be used in the digestion and/or evaporation, involving the use of perchloric acid must be made of chemically inert, non-combustible material and so constructed and designed that they can be thoroughly washed with water. The exhaust system shall dischar…

Smoking, matches, open flames, spark-producing devices and carrying of firearms or ammunition shall be prohibited in or within 50 feet of the following areas: 1. Explosive and blasting supply magazines. 2. Blasting agent and oxidizer storage sites. 3. Blasting agent mixing plants…

No persons shall drive, load, or unload a vehicle transporting explosives, blasting agents, or oxidizers in a careless or reckless manner. Historical Note Former Rule 2:12.

The precautions, rules and regulations governing the use, transportation and handling of explosives shall apply to all blasting agents except as otherwise expressly provided herein. Historical Note Former Rule 2:13.

Vehicles containing explosives or detonators shall not be taken to a repair garage or shop for any purpose. Historical Note Former Rule 2:14.

Vehicles containing detonators or explosives, other than blasting agents, shall not be left unattended except in blasting areas where loading or charging is in progress. Historical Note Former Rule 2:15.

Men responsible for operating the hoist and cagers shall be notified whenever explosives or detonators are being transported in a shaft conveyance. Historical Note Former Rule 2:16.

Hoisting in adjacent shaft compartments shall be stopped when explosives or detonators are being handled. Historical Note Former Rule 2:17.

A. Supervisors working in an area where cyanide is used or stored shall successfully complete a cyanide safety course conducted by the State Mine Inspector prior to starting a cyanide leaching operations. B. Employees working in an area where cyanide is used or stored shall be in…

Cyanide first-aid emergency procedures shall be posted and visible at the operations main office and at each first-aid station and in all areas where cyanide is handled. Historical Note Adopted effective August 2, 1985 (Supp. 85-4). Amended effective July 6, 1993 (Supp. 93-3).

A. Approved cyanide antidote kits for treatment of cyanide poisoning shall be made available at workplaces where cyanide is used, stored, or handled or where there is a potential for exposure to hydrogen cyanide gas or dry or solution cyanide contamination. B. An approved cyanide…

No employee shall be assigned or permitted to work alone in any area where hazardous conditions exist or may exist that would endanger the worker’s safety unless the worker can communicate with others in the immediate vicinity or can be visually observed at all times. Historical …

No cyanide leaching operation shall be left unattended while cyanide is present in dry or solution form. Historical Note Adopted effective August 2, 1985 (Supp. 85-4). Amended effective July 6, 1993 (Supp. 93-3).