
Urine analyzers (dry chemistry method, formed element analysis) must comply with GB 9706.1, YY 0505 (domestic) and IEC 60601-1-2 (international) EMC standards. Dry chemistry methods typically use reflectance spectrophotometers, while formed element analysis may employ flow cytometry or image recognition. Standards require that the optical detection system (light source, photoelectric sensor) and sample transport mechanism (motor, belt) operate without interference, and that measurement results (color, morphology) are unaffected by environmental electromagnetic noise. These devices are typically used in clinical laboratories and must coexist with biochemistry, hematology, and other related equipment.