1 Scope
This part of GB/T 19851 specifies the technical requirements, quality standard and inspection method for surface layer of synthetic athletic ground.
This part is applicable to synthetic surfaced athletic ground used within middle school and primary school.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of GB/T 19851. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this part of GB/T 19851. However parties to agreements based on this part of GB/T 19851 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 531 Rubber - Determination of Indentation Hardness by Means of Pocket Hardness Meters
GB/T 1681 Rubber - Determination of Rebound Resilience of Vulcanizates
GB/T 2941 Rubber - Standard Temperatures, Humidities and Times for the Conditioning Environmental and Testing of Test Pieces
GB/T 9865.1 Rubber - Vulcanized or Thermoplastic - Preparation of Samples and Test Pieces - Part 1: Physical Tests
GB 10111 Methods for Random Sampling by Utilizing Dices of Random Number
GB/T 10654 Cellular Flexible Polymeric Materials - Determination of Tensile Strength and Elongation at Break
QB/T 2443 Steel Measuring Tapes
3 Terms and Definitions
For the purpose of this part of GB/T 19851, the following terms and definitions apply.
3.1
synthetic surfaced
ground surface covered by synthetic elastic material, which is used as athletic ground for the teaching and training of basketball, volleyball and tennis
3.2
abstract
flatness of composite materials expressed by the maximum dent within the distance of 1m or 3m
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Requirements
5 Inspection Method
Annex A (Normative) Measuring Method for Qualification Rate of Abstract of Athletic Field
A.1 Instruments
A.2 Measuring Procedures
A.3 Result Calculation
A.4 Measurement Report
Annex B (Normative) Measuring Method for Thickness of Athletic Field
B.1 Instruments
B.2 Measuring Procedures
B.3 Measurement Result
B.4 Test Report
Annex C (Normative) Measuring Method for Slope of Athletic Field
C.1 Instruments
C.2 Measuring Procedures
C.3 Result Calculation
C.4 Test Report
Annex D (Normative) Test Method for Recovery Rate from Compression of Athletic Field
D.1 Specimen
D.2 Test Procedures
D.3 Result Calculation
D.4 Permissible Tolerance
D.5 Test Report
Annex E (Normative) Determination Method for Flame-resistance Performance of Athletic Field
E.1 Specimen Preparation
E.2 Instruments and Reagent
E.3 Determination Procedures
E.4 Test Result
E.5 Test Report
