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Ordinance No. 2241 Page 32 of 60 6004.1.13 Emergency Drills. Emergency drills of the on-site emergency response personnel and liaisons shall be conducted on a regular basis but not less than every six months. Records of drills conducted shall be maintained for three years. 20.24.420 CFC Section 6004.1.14 added—Cylinder leak testing. Section 6004.1.14 is added to read: 6004.1.14 Cylinder leak testing.Cylinders shall be tested for leaks immediately upon delivery and again immediately prior to departure. Testing shall be approved by the fire code official in accordance with appropriate nationally recognized industry standards and practices, if any. Appropriate remedial action shall be immediately undertaken when leaks are detected. 20.24.430 CFC Section 6004.1.15 added—Inert gas purge system. Section 6004.1.15 is added to read: 6004.1.15 Inert gas purge system.Gas systems shall be provided with dedicated inert gas purge systems. A dedicated inert gas purge system may be used to purge more than one gas,provided the gases are compatible. Purge gas systems inside buildings shall be located in an approved gas cabinet unless the system operates by vacuum demand. Exception: Refrigeration systems. 20.24.440 CFC Section 6004.1.16 added—Seismic shutoff valve. Section 6004.1.16 is added to read: 6004.1.16 Seismic shutoff valve.An automatic seismic shut-off valve,which is of a fail-safe to close design, shall be provided to shutoff the supply of highly toxic,toxic and moderately toxic gases with an LC50 less than 3,000 parts per million upon a seismic event within 5 seconds of a horizontal sinusoidal oscillation having a peak acceleration of 0.3G(1.47m/sec2)and a period of 0.4 seconds. 20.24.450 CFC Section 6004.1.17 added—Fittings and connections. Section 6004.1.17 is added to read: 6004.1.17 Fittings and connections. Fittings and connections shall be located in a gas cabinet,exhausted enclosure,gas room or exhausted valve manifold box. Exception: Welded connections. 20.24.460 CFC Section 6004.2 amended—Indoor storage and use. Section 6004.2 is hereby amended to read: 6004.2 Indoor storage and use amended. The indoor storage or use of highly toxic,toxic and moderately toxic compressed gases shall be in accordance with Sections 6004.2.1 through 6004.2.2.10.4. 20.24.470 CFC Section 6004.2.1 amended—Applicability. Section 6004.2.1 is hereby amended to read: