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<br />, . <br /> <br />buildings or other structures. Additional swing <br />joints may-be required as determined by the chief. <br />"'b. Fill and Discharge piping for Underground <br />Tanks. Fill and discharge lines for Class I, and for <br />Class II and III liquids where practical, shall enter <br />tanks only through the top and shall be graded toward <br />the tank. <br />"'c. Fill Openings. The fill-pipe opening shall <br />be located outside of any building. For flammable and <br />combustible liquid storage the fill-pipe opening shall <br />'be not less than five feet from any door or cellar <br />opening. The fill-pipe opening shall be closed and <br />liquid tight when not in use. Fill-pipes for filling <br />by tank car or tank truck shall not be larger than <br />four inches nGminal inside diameter and shall not be <br />constricted. Fill~pipe openings shall be identified <br />by a definite color scheme or other means. <br />"'d. Gauge Openings. Gauge openings, if inde- <br />pendent of a fill-pipe, shall be provided with a liquid- <br />tight cap or cover. If inside a building, each such <br />opening shall be protected against liquid overflow and <br />possible vapor release by means of a spring loaded <br />check valve or other approved device.' <br />"Section 12.20 Section 15.216 of the Fire Code is hereby <br />amended to read as follows: <br />"'Section 15.216 TESTING. <br />"'a. Before being covered or placed in use, all <br />tanks and that piping which is in a suction system shall <br />be tested hydrostatically or with air pressure at not <br />less than three pounds per square inch gauge, nor more <br /> <br />-23- <br />