Morgan Hill Municipal Code Part 6 Class II Controls

Responsible persons shall cause materials which are classified as Class II materials to be provided with the controls specified in Part 2 and Parts 6, 7 and 8 of this article.

(Ord. 1494 N.S. § 2 (part), 2000)

Piping and tubing for Class II materials shall be installed in accordance with appropriate nationally recognized standards, if any, approved by the fire chief or his designee and shall have welded connections compatible with the regulated material throughout unless an exhausted enclosure is provided.

Material which is not compatible with ferrous piping may be installed in nonferrous piping approved by the fire chief or his designee.

Where connections other than welding connections meet appropriate nationally recognized industry standards, if any, a person responsible for a facility may seek an exception from the fire chief or his designee. A request for exception and a fee as set by the schedule of fees as adopted by the council shall be filed with the fire chief or his designee for approval. The request shall document the standards and reason for the exception.

(Ord. 1494 N.S. § 2 (part), 2000)

Manual activation controls for local gas shutoff shall be provided at locations near the point of use and near the source, as approved by the fire chief or his designee. The fire chief or his designee may require additional controls at other places, including but not limited to the entry to the building, the area in the building where regulated materials are stored or used and emergency control stations. Manually activated shutoff valves shall be of fail-safe-to-close design.

(Ord. 1494 N.S. § 2 (part), 2000)

Emergency power shall be provided for:

A. Exhaust ventilation, including the power supply for treatment systems;

B. Gas detection systems;

C. Emergency alarm systems;

D. Temperature control systems which comply with the California Fire Code.

(Ord. 1494 N.S. § 2 (part), 2000)

Portable tanks and cylinders containing Class II material shall be provided with excess flow control. Excess flow control shall be permanently marked to indicate the maximum design flow rate.

(Ord. 1494 N.S. § 2 (part), 2000)

A continuous gas detection system shall be provided to detect the presence of a gas at or below the permissible exposure limit in occupiable areas and at or below one-half IDLH (or 0.05 LC 50 if no established IDLH) in unoccupiable areas. The detection system shall initiate a local alarm and transmit a signal to a continually staffed remote location (to provide an immediate response to an alarm). The alarm shall be both visual and audible and shall be designed to provide warning both inside and outside of the interior storage, use or handling area. The audible alarm shall be distinct from all other on-site alarms.

(Ord. 1494 N.S. § 2 (part), 2000)

A continuous monitoring system shall be provided to assure that the required exhaust ventilation rate is maintained. The monitoring system shall initiate a local alarm. The alarm shall be both visual and audible and shall be designed to provide warning both inside and outside of the interior storage, use or handling area.

(Ord. 1494 N.S. § 2 (part), 2000)

A seismically activated valve meeting standards approved by the fire chief or his designee shall be provided for an automatic shutoff of regulated materials.

(Ord. 1494 N.S. § 2 (part), 2000)

Inert construction materials shall be used for the primary containment of Class II regulated materials which are corrosive. Alternatively, secondary containment shall be provided for Class II materials which are corrosive.

(Ord. 1494 N.S. § 2 (part), 2000)

When materials regulated by this article are transported through exit corridors or exit enclosures, there shall be an emergency telephone system or a local manual alarm station or a signaling device approved by the fire chief or his designee at not more than one hundred fifty foot intervals and at each exit doorway throughout the transport route. The signals shall be relayed to an approved central, proprietary or remote station service or a constantly attended on-site location and shall also initiate a local audible alarm.

(Ord. 1494 N.S. § 2 (part), 2000)