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107.1.5 All sprinkler riser piping shall be either non-ferrous metallic pipe (copper, or <br />brass) or CPVC. All piping above the flow switch shall be protected by sheet rock or plywood. <br />Note: No ferrous (black iron, iron or galvanized) pipe is permitted. <br /> <br />Sec. 9.108 UNITS Units <br /> <br />Metric units of measurement in this standard are in accordance with the modernized metric <br />system known as the International System of Units (SI). Two (2) units (liter and bar), outside of <br />but recognized by SI, are commonly used in international fire protection. <br /> <br />108.1 If a valve for measurement as given in this standard is followed by an equivalent value <br />in other units, the first stated is to be regarded as the requirement. A given equivalent value may <br />be approximate. <br /> <br />CHAPTER 2 *Water Supply <br /> <br />See. 9.201 General Provisions <br /> <br />Every automatic sprinkler system shall have at least one (1) automatic water supply. When <br />stored water is used as the sole source of supply, the minimum quantity shall equal the water <br />demand rate times ten (10) minutes. <br /> <br />See. 9.202 *Water Supply Sources <br /> <br />The following water supply sources are acceptable: <br /> <br />202.1 A connection to a reliable water works system. <br /> <br />202.2 *An elevated tank. <br /> <br />202.3 A pressure tank installed in accordance with NFPA 13, Standard for the Installation of <br />Sprinkler Systems, and NFPA 22, Standard for Water Tanks for Private Fire Protection. <br /> <br />202.4 A stored water source with an automatically operated pump. <br /> <br />Sec. 9.203 Multipurpose Piping System <br /> <br />A piping system serving both fire sprinkler and domestic needs shall be acceptable when: <br /> <br />203.1 In common water supply connections serving more than one (1) dwelling unit, five (5) gallons <br />per minute (19 L/min) per dwelling unit is added to the sprinkler system demand to determine the size of <br />common piping and the size of the total water supply requirements. <br /> <br /> 17 <br /> <br /> <br />