The service life of the deceleration clutch is made according to relevant national industry standards and enterprise industry standards. Applicable products include: pulsator type fully automatic washing machine deceleration clutch (including ordinary clutch and dual power clutch structure). Conduct long-term/gap time aging tests on the tested clutch through durability cycle tests such as forward rotation → stop → reverse rotation cycle → stop. Effectively evaluate the implementation and service life of the tested product. GB/T 23149, QB/T 4684-2014 Household washing machine deceleration clutch.