Preface 1 Scope 2 Normative references 3 Terms and definitions 4 Product classification 4.1 Type I office chair 4.2 Type II office chair 4.3 Type III office chair 5 Basic requirements 5.1 Design and development 5.2 Material selection 6 Technical requirements 6.1 Main dimensions 6.2 Shape and position tolerances 6.3 Appearance requirements 6.4 Physical and chemical properties 6.5 Mechanical properties 6.6 Combustion support 6.7 Formaldehyde release 6.8 TVOC 6.9 Safety performance 7 Test method 7.1 General test conditions 7.2 Accuracy 7.3 Main dimensions 7.4 Shape and position tolerance 7.5 Appearance requirements 7.6 Physical and chemical properties 7.7 Mechanical properties 7.8 Flame retardant Properties 7.9 Formaldehyde release 7.10 TVOC 7.11 Safety 8 Inspection rules 8.1 Inspection classification 8.2 Factory inspection 8.3 Format inspection 9 Marking, instructions for use, packaging, transportation, storage 9.1 Marking 9.2 Instructions for use 9.3 Packaging 9.4 Transportation 9.5 Storage Appendix A (normative) 64kg Loading Module Appendix B (Normative) Impact Bag Reference