Strict quality control of Jinta suspended floor

Testing unit: Zhongfu Testing Service (Hebei) Co., Ltd. Inspection project: Appearance Technical requirements: No cracks, no bubbles, poor plasticization on the floor surface, no spots, no burrs, no twists and warping, etc. Test results: No cracks, no bubbles, poor plasticization on the floor surface, no single judgment: Comply with the inspection project: high temperature test (70℃, 72h) Technical requirements: There should be no bubbles, pits, obvious discoloration, deformation and other phenomena after high temperature test: There should be no bubbles, pits, obvious discoloration, deformation and other phenomena after high temperature test Single-item judgment: Comply with the inspection item: low temperature test (-40℃C, 72h) Technical requirements: No cracks, no damage, no deformation and other phenomena after low temperature test Single-item judgment: Comply with the inspection item: technical requirements for ball rebound rate: ≥90 Test results: 97 Single-item judgment: Comply with the inspection ite

Testing unit: Shanghai Weipu Chemical Technology Service Co., Ltd. Sample name: Sports floor Sample number: 210114431-1 Description: Red plastic board test result: Substance name: SVHC CAS No — MDL (%) — Results (%):ND Testing cycle: 2021-01-28~2021-02-07

Testing unit: Qingdao Shitande Testing Co., Ltd. Testing project: Light-resistant color fastness detection result: >3 Testing method: GB/T 8427-2019 Note: Exposure time 68h Test start and end date 2021/02/04-2021/02/24

Inspection unit: National Sports Goods Quality Supervision and Inspection Center Inspection Project: Technical requirements for appearance quality: The floor color is uniform and consistent, and there is no obvious color difference; there is no cracking, bubbles, poor plasticization on the surface, and no burrs on the floor surface. Single judgment: Comply with inspection items: Technical requirements for basketball rebound rate: ≥90 Single-item judgment: 98 meets the inspection item: Anti-slip value (thousand tests) technical requirements: 80-110 Single-item judgment: 88 meets the inspection item: Anti-slip value (wet test) technical requirements: ≥47 Single-item judgment: 56 meets the inspection item: Low-temperature test (-50℃, 24h) technical requirements: No cracks, no obvious color difference Single-item judgment: Comply with the inspection item: High-temperature test (100℃, 24h) technical requirements: No melting, no cracks, no obvious color difference Single-item judgment: Comply with the inspection 

Testing unit: International Sports Goods Quality Supervision and Inspection Center Inspection Project: Appearance Quality Technical Requirements: The color of the floor is uniform and consistent, without obvious color difference; the surface is free of cracks, bubbles, poor plasticization, and no burrs on the floor surface: √ Comply with the inspection items: Basketball rebound rate Technical requirements: ≥90 Test result: 98 Comply with the inspection items: Anti-slip value (thousand tests) Technical requirements: 80-110 Test result: 88 Comply with the inspection items: Anti-slip value (wet test) Technical requirements: >47 Test result: 56 Comply with the inspection items: Low temperature test (-50℃, 24h) Technical requirements: No cracks, no obvious color difference Test result: √ Comply with the inspection items: High temperature test (100℃, 24h) Technical requirements: No melting, no cracks, no obvious color difference Test results: √ Comply with inspection items: Technical requirements for flatness 

Testing unit: Qingdao Shitande Testing Co., Ltd. Testing project: Light-resistant color fastness detection result: >3 Testing method: GB/T 8427-2019 Note: Exposure time 68h Test start and end date 2021/02/04-2021/02/24

Testing unit: Inspection project of the National Environmental Protection Product Quality Supervision and Inspection Center (formaldehyde, benzene, toluene, xylene, total volatile organic compound TVOC) 24-hour release inspection conclusion: "Public Places Health Inspection Method Part 2, Chemical Pollutants" This sample is based on GB/T 18204.2-2014 Inspection date 2021-08-19 to 2021-09-24

Testing unit: The National Building Materials Quality Supervision and Inspection Center determines that the test items are based on GB 36246-2018 "Sports Field of Surface Layers of Synthetic Materials in Primary and Secondary Schools" The test items are tested in accordance with the full indicators of cast-in-place and prefabricated surface layers of GB 36246-2018. Testing conclusion: *After testing, the test results of the items inspected by the random sample are in line with the technical requirements of GB36246-2018 standard cast-in-place and prefabricated surface layers. Sample collection date June 23, 2020

Testing unit;'Qingdao Stand Testing Co., Ltd. Testing project: UV aging Grade Grade Testing Results: No cracking, no obvious color difference, no local powdering, no obvious deformation, no bulging Grade Grade Grade 4 Testing Conclusion: Comply with the detection method: GB/T16422.3-2014 Testing start and end date 201901/30-2019/07/08

Testing unit: Qingdao Stand Testing Co., Ltd. Testing project: Appearance test results: No cracking, color difference, partial powdering, no obvious deformation, no bulge testing project: Gray card grade test results: Level 4 test conclusion: Comply with testing standards: GB/T16422.3-2014 GB/T16422.3-2014 Test start and end date 2019/01/30-2019/08/19

Testing unit: International Sports Goods Quality Supervision and Inspection Center Inspection Project: Appearance Quality Technical Requirements: The floor color is uniform and consistent, no obvious color difference, no cracks, bubbles, poor plasticization on the surface, and no burrs on the floor. Single-item judgment: Comply with the inspection item: Technical requirements for basketball rebound rate: ≥90% Single-item judgment: Comply with the inspection item: Rolling load Technical requirements: When a load of 1500N is applied, there should be no cracks, fractures, splits, paint film, etc. damage. Single-item judgment: Comply with the inspection item: Anti-slip value (dry measurement) Technical requirements: 80-110 106 Single-item judgment: Comply with the inspection item: High temperature test (100℃, 24h) Technical requirements: No melting, no cracking, and no obvious chromatic aberration after the test. Single-item judgment: Comply with the inspection items: low temperature test (-40℃, 24h) Technical 

Testing agency: Qingdao Stand Testing Co., Ltd. Testing project: rupture rate test result: 0 Testing method: GB/T 1842-2008 Testing start and end date 201904/28-2019/06/10

Testing unit: Tongda Standard Technical Service Tianjin Co., Ltd. Testing project: Calcium carbonate-CaCO₃ Testing result: No detection detection basis: JBIT 11144-2011 Sample test cycle: December 11, 2019 to December 20, 2019

Testing unit: Qingdao Kebiao Testing Research Institute Co., Ltd. Test Item Initial Appearance: The sample is a red sheet solid with a flat and smooth surface initial tensile strength, test data: 24.1 Single-item judgment: In line with MPa initial bending strength, test data: 40.9 Single-item judgment: In line with MPa initial wear resistance, mg test data: 14.1 Single-item judgment: In line with UV aging appearance after test Test data: After test sample has no cracks, no obvious color difference, no local powdering, no obvious deformation, gray card rating 4~5 Single-item judgment: In line with the tensile strength after ultraviolet aging, MPa test data: 27.2 Single-item judgment: In line with the bending strength after ultraviolet aging, MPa test data: 43.7 Single-item judgment: In line with the wear resistance after ultraviolet aging, mg Test data: 6 single-item judgment: Comply with sample acceptance date 2018.01.29

Testing unit: International Environmental Protection Product Quality Supervision and Inspection Center Inspection Project: Sensory requirements Technical requirements: Normal color, no abnormal odor and unclean substances, etc. Inspection results: Meet the requirements Inspection items: Physical and chemical index n-hexane extract (reflow, 2h) Technical requirements: <2 Inspection results: 0.570 Sample time: Sample date 2018-2-5

Testing unit: Tongbiao Standard Technical Service Tianjin Co., Ltd. Testing project: Qualitative analysis of principal components Testing method: GB/T 6040-2002 Results: Polypropylene (PP) Testing project: Qualitative analysis of principal components Sample description: Plastic parts Testing method: GBIT6040-2002, the analytical instrument is Fourier transform infrared spectrometer (FTIR) Sample preparation method: Hot pressing film formation result: Polypropylene (PP) Equipment: Fourier transform infrared spectrometer Model: NICOLET 5700 Equipment number: GZMR-PL-E028 Calibration date: 2018-09-07 Next calibration date: 2019-09-06