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Attachment 1 Exhibit B <br />Page 34 of 64 <br /> <br />Table 6004.1 <br />Minimum Threshold Quantities for Highly Toxic, Toxic and Moderately Toxic Gases <br /> <br />Highly Toxic 0 cubic feet <br />Toxic 10 cubic feet <br />Moderately Toxic 20 cubic feet <br /> <br />20.24.300 CFC Section 6004.1.2 amended – Gas Cabinets. <br /> <br />Section 6004.1 is hereby amended as follows: <br /> <br />6004.1.2 Gas cabinets. Gas cabinets containing highly toxic, toxic or moderately toxic gases shall <br />comply with Section 5003.8.6 and the following requirements: <br />[balance to remain the same] <br /> <br />20.24.310 CFC Section 6004.1.3 amended – Exhausted Enclosures. <br /> <br />Section 6004.1.3 is hereby amended as follows: <br /> <br />6004.1.3 Exhausted enclosures. Exhausted enclosures containing highly toxic, toxic or moderately <br />toxic gases shall comply with Section 5003.8.5 and the following requirements: <br />[balance to remain the same] <br /> <br />20.24.320 CFC Sections 6004.1.4 added – Automatic shut-off valve. <br /> <br />Section 6004.1.4 is added to read: <br /> <br />6004.1.4 Automatic shut-off valve. An automatic shut-off valve, which is of a fail-safe to close <br />design, shall be provided to shut off the supply of highly toxic gases as close as possible to the supply <br />container for any of the following: <br />1. Activation of a manual fire alarm system. <br />2. Activation of the gas detection system. <br />3. Failure of emergency power. <br />4. Failure of primary containment. <br />5. Seismic activity. <br />6. Failure of required ventilation. <br />7. Manual activation at an approved remote location. <br /> <br />20.24.330 CFC Section 6004.1.5 added – Annual Maintenance. <br /> <br />Section 6004.1.5 is added to read: <br /> <br />6004.1.5 Annual Maintenance. All safety control systems at a facility shall be maintained in good <br />working condition and tested not less frequently than annually. Maintenance and testing shall be <br />performed by persons qualified to perform the maintenance and tests. Maintenance records and <br />certifications shall be kept for a minimum of three years and shall be made available to any <br />representative of the Livermore-Pleasanton Fire Department for inspection upon request. <br />Page 45 of 376