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Responsible persons shall cause materials which are classified as Class II materials to be <br />provided with the controls specified in this subsection (c) and in subsections (d), (e) and <br />(f) of this section. <br /> <br />(1) Connections <br /> <br />[ii Piping and tubing shall be installed in accordance with appropriate nationally <br />recognized standards, if any, approved by the Fire Chief, and shall have welded <br />connections compatible with the regulated material throughout unless an exhausted <br />enclosure is provided. <br /> <br />[ii] Material which is not compatible with ferrous piping may be in stalled in non- <br />ferrous piping approved by the Fire Chief. <br /> <br />[iii] Where connections other than welded connections meet appropriate nationally <br />recognized industry standards, if any, a person responsible for a facility may seek an <br />exception from the Fire Chief, by filing a request for exception with the Fire Chief, which <br />shall document the standards and reason for the exception. <br /> <br />(2) Local Gas Shut-Off <br /> <br />[i] Manual activation controls shall be provided at locations near the point of use and <br />near the source, as approved by the Fire Chief. <br /> <br />[ii] The Fire Chief may require additional controls at other places, including, but not <br />limited to, the entry to the building, the area in the building where regulated materials are <br />stored or used, and emergency control stations. <br /> <br />[iii] Manually activated shut-off valves shall be of"fail safe to close" design. <br /> <br />(3) Emergency Power. Emergency power shall be provided for: <br /> <br />[i] Exhaust ventilation, including the power supply for treatment systems. <br />[ii] Gas-detection systems. <br /> <br />[iii] Emergency building alarm systems and fire detection alarm transmission to an <br />approved Underwriters Laboratory (UL) Central Station Service monitoring company. <br /> <br />[iv] Temperature-control systems which comply with the Fire Code. <br /> <br />(4) Excess Flow Control. <br /> <br />[i] Portable tanks and cylinders shall be provided with excess flow control. 120 <br /> <br /> <br />