The purpose of this standard is to provide the minimum requirements for coldwater meters for residential fire sprinkler applications that meet the requirements of NFPA 13D in one- and two-family dwellings and manufactured homes, in sizes ¾ in. (20 mm) through 2 in. (50 mm), including materials and design. This standard can be referenced in specifications for purchasing and receiving cold-water meters for residential fire sprinkler applications that meet the requirements of NFPA 13D in one- and two-family dwellings and manufactured homes, in sizes ¾ in. (20 mm) through 2 in. (50 mm). This standard can be used as a guide for manufacturing cold-water meters for these applications. The stipulations of this standard apply when this document has been referenced and then only to cold-water meters for residential fire sprinkler applications meeting the requirements of NFPA 13D. This standard does not apply to meters that are used on lines that supply only a fire sprinkler system.