Strict quality control of Jinta sports wooden floors

Testing unit: Qingdao Product Quality Inspection Institute Testing Standards: GB/T 20239-2023, GB/T 8626-2007, GB/T 11785-2005 Number of test items specifications and deviations (specimen size, size deviation), surface floor appearance quality requirements, physical and chemical properties (flexural strength, elastic modulus, moisture content, wear resistance of paint film surface, paint film adhesion, paint film hardness, flame retardant performance) Testing date: 2024-01-26~2024-02-17

Testing unit: Qingdao Product Quality Inspection Institute Testing Standards: GB/T 20239-2023, GB/T 6343-2009, GB/T 10654-2001, GB/T 8626-2007, GB/T3512-2014 Number of test items: apparent density, tensile strength, tensile elongation, flame retardancy, tensile strength change rate (reduced) (hot air aging 70℃x168h), tensile elongation change rate (reduced) (hot air aging 70℃x168h) Testing date: 2024-01-26~2024-02-18

Testing unit: Qingdao Product Quality Inspection Institute Testing Standards: GB/T 20239-2023, GB/T 11785-2005, GB/T 8626-2007 Number of test items: specifications and dimensions (special sizes, dimensions, deviations), keel appearance quality requirements, physical and chemical properties (flexural strength elastic modulus, moisture content, flame retardant performance) Testing date: 2024-01-26~2024-02-19

Testing unit: Qingdao Product Quality Inspection Institute Testing Standards: GB/T 20239-2023, GB/T 11785-2005, GB/T 8626-2007 Number of test items: specifications and dimensions (special sizes, dimensions, deviations), keel appearance quality requirements, physical and chemical properties (flexural strength elastic modulus, moisture content, flame retardant performance) Testing date: 2024-01-26~2024-02-19

Testing unit: National Sports Goods Quality Inspection and Testing Center Inspection Center, Hebei Product Quality Supervision and Inspection Institute Testing Standard: GB/T 20239-2023 "Wooden Floor for Gymnasium" Testing items: Functional requirements (impact absorption rate, standard vertical deformation, anti-rolling load performance appearance, ball rebound rate, sliding friction coefficient Inspection date: 2024-01-30 to 2024-02-01

Testing unit: Qingdao Product Quality Inspection Institute Testing Standards: Tensile load, nominal strain for fracture, number of detection items: 1. Longitudinal technical requirements for tensile load>3. ON inspection result 10.39N single-item judgment complies with horizontal direction>Technical requirements 3.0N inspection result single-item judgment complies with nominal strain for fracture>320% detection result 937% transverse direction>320% detection result 1018% conforms to right-angle tear load>1.5N detection result 7. IN conforms to horizontal direction>1.5N detection result 5. 3N conforms to testing date: 2024-03-04~2024-03-08

Testing unit: Guangdong Microbial Analysis and Testing Center Testing Standard: JC/T 2039-2010 Number of test items: Anti-mold performance measurement Testing date: 2024-04-01

Testing unit: Guangdong Microbial Analysis and Testing Center Testing Standard: JC/T 2039-2010 Appendix A Number of test items: Antibacterial performance test date: 2024-03-29

Testing unit: National Sports Goods Quality Inspection and Testing Center Testing Standards of Hebei Product Quality Supervision and Inspection Institute: GB 18581-2020 "Limited amount of hazardous substances in wood coatings" Number of test items: 1. V0C content 2. Total lead (Pb) content 3. Soluble heavy metal content 4. Total content of ethylene glycol ether and ether ester (limited ethylene glycol methyl ether, ethylene glycol methyl ether acetate, ethylene glycol ethyl ether, ethylene glycol ethyl ether acetate, ethylene glycol dimethyl ether, ethylene glycol dimethyl ether, ethylene glycol dimethyl ether, triethylene glycol dimethyl ether) 5. Benzene content 6. Total content of lydanbenzene and xylene (containing ethylbenzene) 7. Total content of polycyclic aromatic hydrocarbons (limited naphthalene, anthracene) 8. Total content of free diisocyanate [TDI) hexamethylene diisocyanate (HDI)] Test date: 2024-04-24 to 2024-05-31

Testing unit: National Sports Goods Quality Inspection and Testing Center Testing Standards of Hebei Product Quality Supervision and Inspection Institute: GB/T 20239-2023 "Wooden Floor for Stadiums" Number of test items: ball rebound rate, rolling load resistance (appearance), sliding friction coefficient, impact absorption rate, standard vertical deformation detection date: 2022-03-21 to 2022-03-28

Testing unit: Qingdao Product Quality Inspection Institute Testing Standard: GB 8624-2012 Number of test items: Combustion performance technical requirements: The inspection results reach B: level B (level C) requirements single-item judgment meets critical thermal radiation flux CHF technical requirements>4.5kw/m² Inspection results4.6kW/m² 20s internal flame tip height Fs technical requirements <150mm Inspection results<150mm Test date: 2022-03-29~2022-04-25

Testing unit: Side Testing Technology Zhejiang Co., Ltd. Testing standard: Quality attribute testing item: benzene <10 units μg/m Testing results are not detected and evaluated in line with toluene <20 units μg/m Testing results are not detected and evaluated in line with xylene <20 units μg/m Testing results are not detected and evaluated in line with total volatile organic compounds (TVOC) ≤100 units μg/m Testing results are not detected and evaluated in line with test date: May 17, 2022

Testing unit: Side Testing Technology Zhejiang Co., Ltd. Testing standard: Quality attribute testing item: Formaldehyde emission Formaldehyde emission <0.05 Testing unit mg/m3 Testing results have not been detected and evaluated in line with the test date: May 17, 2022