This standard specifies the basic parameters, technical conditions and test methods of micro and small cleaning machines powered by motorized reciprocating pumps. This standard is applicable to pumps with a rated discharge pressure of 3.6 to 150MPa, a rated flow rate of 2.5 to 45L/m1n, and a working medium that is clean water at room temperature or a cleaning agent mixture with a kinematic viscosity not greater than 45mm2/S, particle-free, and non-corrosive. Reciprocating micro cleaning machine.