Office Chair Inspection

Office chair inspection should be carried out from six core dimensions: mechanical properties, material safety, structural strength, appearance and assembly, documentation and labeling, and classification adaptability to ensure that the product meets safety and functional standards.

1. Mechanical Property Testing Focus on testing stability, durability, and adjustment mechanisms. For example, in forward tipping tests, the seat must withstand a static load of 600N and must not tip over when a forward force of 20N is applied; the durability of the chair back must pass 120,000 cycle tests to ensure no risk of breakage during long-term use; adjustment mechanisms (such as height adjustment and tilt functions) must simulate high-frequency usage scenarios to verify their durability and operational smoothness.

2. Material Safety Testing Test for formaldehyde emissions, heavy metal content, and flame retardancy. Chairs for household use must meet basic standards, while those for public places must comply with the higher flame retardancy requirements of GB 17927.2; fabrics must pass abrasion resistance tests (such as the Martindale method), and foam must meet resilience standards (such as 45%-65% compression resilience) to avoid sagging after long-term use.

3. Structural Strength Testing Gas springs must have SGS or TUV certification marks to prevent explosion risks; frame welds should exhibit uniform fish-scale patterns without cold welds or cracks; hardware must use branded models such as Hettich or Blum to ensure load-bearing stability; casters should preferably be made of PU material for a balance of quiet operation and wear resistance, avoiding scratches on the floor.

4. Appearance and Assembly Inspection Ensure there are no sharp edges, damaged packaging, or missing labels; component dimensions, colors, and materials must match the approved samples to avoid color discrepancies or material mismatches; after assembly, verify part compatibility (such as screw hole alignment) and functional normality (such as smooth tilt adjustment, chair leg clearance ≤5mm) to prevent looseness or abnormal noises.

5. Documentation and Labeling Review Check product specifications, applicable standards (such as QB/T 2280-2016), and CMA/CNAS qualified test reports; instructions must include maintenance methods (such as avoiding direct sunlight) and safety warnings (such as prohibiting overloading); certification labels and warning tags must be clear and complete to ensure traceability.

6. Classification Standard Adaptation Select testing standards based on the chair type (such as reclining or fixed-seat angle) and usage location (household/public place). For example, chairs for public places require enhanced flame retardancy testing, while reclining chairs must focus on testing the safety of the tilt mechanism to prevent tipping risks.