Preface 1 Scope 2 Normative cited documents 3 Terms and definitions 4 Product classification 5 Basic requirements 5.1 Design and development 5.2 Material selection 6 Technical requirements 6.1 Main dimensions and shape symmetry 6.2 Product materials and processing requirements 6.3 Appearance requirements 6.4 Physical and chemical properties 6.5 Mechanical properties 6.6 Safety performance 6.7 Hazardous substance limits 7 Test method 7.1 Main dimensions and shape symmetry 7.2 Product materials and processing 7.3 Appearance requirements 7.4 Physical and chemical properties 7.5 Mechanical properties 7.6 Safety performance 7.7 Hazardous substances 8 Inspection rules 8.1 Inspection classification 8.2 Inspection result evaluation 8.3 Inspection Procedure 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) Equilibrium moisture content of wood in various regions of my country Appendix B (normative) Mechanical property test references