Buyers should verify that suppliers hold ISO 9001 (Quality Management) and ISO 14001 (Environmental Management) certifications. For the North American market, ensure compliance with BIFMA standards for chair stability and ADA (Americans with Disabilities Act) requirements for room layouts. For European markets, CE marking and REACH compliance for textiles are mandatory. Always request third-party lab test reports (e.g., SGS or Intertek) for fabric rub counts, which should exceed 30,000 double rubs for commercial use.