03 - Laserfiche WebLink

20.24.340 CFC Section 6004.1.6 added — Maximum threshold quantity. Section 6004.1.6 is added to read: 6004.1.6 Maximum threshold quantity. Toxic gases stored or used in quantities exceeding the maximum threshold quantity in a single vessel per control area or outdoor control area or H- Occupancy shall comply with the additional requirements for highly toxic gases of Section 6004 of this code. Moderately toxic gases stored or used in quantities exceeding the maximum threshold quantity in a single vessel per control area or outdoor control area or H-Occupancy shall comply with the additional requirements for toxic gases of Section 6004 of this code. 20.24.350 CFC Section 6004.1.7 added — Reduced flow valve. Section 6004.1.7 is added to read: 6004.1.7 Reduced flow valve. All containers of materials other than lecture bottles containing highly toxic material and having a vapor pressure exceeding 29 psi shall be equipped with a reduced flow valve when available. If a reduced flow valve is not available, the container shall be used with a flow-limiting device. All flow limiting devices shall be part of the valve assembly and visible to the eye when possible; otherwise, they shall be installed as close as possible to the cylinder source. Exception: When the process use rate is approximately equal to the maximum flow rate of the cylinder/tank valve. 20.24.360 CFC Section 6004.1.8 added — Fire extinguishing systems. Section 6004.1.8 is added to read: 6004.1.8 Fire extinguishing systems. Buildings and covered exterior areas for storage and use areas of materials regulated by this Chapter shall be protected by an automatic fire sprinkler system in accordance with NFPA 13. The design of the sprinkler system for any room or area where highly toxic, toxic and moderately toxic gases are stored, handled or used shall be in accordance with Section 5004.5. 20.24.370 CFC Section 6004.1.9 added — Local gas shut off. Section 6004.1.9 is added to read: 6004.1.9 Local gas shut off. Manual activation controls shall be provided at locations near the point of use and near the source, as approved by the fire code official. The fire code official may require additional controls at other places, including, but not limited to, the entry to the building, storage or use areas, and emergency control stations. Manual activated shut-off valves shall be of a fail-safe-to-close design. 20.24.380 CFC Section 6004.1.10 added — Exhaust ventilation monitoring. Section 6004.1.10 is added to read: 6004.1.10 Exhaust ventilation monitoring. For highly toxic gases, toxic and moderately toxic gases exceeding minimum threshold quantities, a continuous monitoring system shall be provided to assure that the required exhaust ventilation rate is maintained. The system shall monitor actual air flow in the exhaust system. 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. Page 21 of 35