The standard testing procedure for massagers adheres to principles of systematization and reproducibility. First, sample preparation is conducted to verify that the product under inspection is a fully assembled finished unit, followed by necessary functional checks performed in accordance with its instruction manual. Subsequently, laboratory environmental conditions-such as temperature and humidity-are controlled to ensure compliance with standard specifications.
Prior to the commencement of formal testing, all critical testing instruments undergo calibration to ensure they are in proper working order. The specific testing steps unfold sequentially: First, a stability test is performed by positioning the product in its most unfavorable orientation on a tilting platform; the platform is then slowly inclined until the product tips over, at which point the tipping angle is recorded. Next, mechanical hazard inspections are conducted: standard test fingers and test pins are used to attempt contact with moving parts and hazardous internal zones, thereby assessing the effectiveness of protective barriers; a prescribed force is applied to protective enclosures to verify that they do not undergo permanent deformation or displacement that would result in hazard exposure; all accessible edges are inspected to ensure they are smooth and free of burrs, utilizing a sharpness tester when necessary to determine their acuity; gaps between moving parts are measured to assess the risk of shearing or crushing hazards; finally, impact tests are performed on vulnerable sections of the product's enclosure using a spring-operated impact hammer to evaluate its mechanical strength. Throughout this entire process, the conditions, observed phenomena, and data associated with each testing step are meticulously documented.