This standard applies to water meters that measure the volume of chilled water of 30°C or less flowing in pipes and pipes that can withstand a maximum allowable working pressure of at least 1 MPa (at least 0.6 MPa for meters with a nominal diameter of 500 or more). This specification specifies hot water meters (hereinafter simply referred to as "meters" in the provisions common to both in this standard) that measure the volume of clean hot water below 180°C flowing through the water.
JIS B 8570-1:2005 history
2013JIS B 8570-1:2013 Meters for cold water and hot water.Part 1: General specifications
2008JIS B 8570-1 AMD 1:2008 Meters for cold water and hot water -- Part 1: General specifications (Amendment 1)
2005JIS B 8570-1:2005 Meters for cold water and hot water -- Part 1: General specifications