STMA

Overview : A turf sample was submitted for a battery of testing to analyze construction and physical properties.



Test Methods:
  • ASTM F1551: Standard Test Method for Comprehensive Characterization of Synthetic Turf Playing Surfaces and Materials.
Ribbon :
  • ASTM D1577: Standard Test Method for Linear Density of Textile Fibers (Denier).
  • ASTM D2256: Standard Test Method for Tensile Properties of Yarns by the Single Strand Method (Breaking Strength/Elongation, Tenacity).
  • ASTM D789: Standard Test Methods for Determination of Relative Viscosit and Moisture Content of Polyamide (PA) (Melt Point).
Turf :
  • ASTM D5848: Standard Test Method for Mass Per Unit Area of Pile Yarn Floor Coverings (Weights).
  • ASTM D1335: Standard Test Method for Tuft Bind of Pile Floor Coverings.
  • ASTM D5823: Standard Test Method for Tuft Height of Pile Floor Coverings.
  • ASTM D5793: Standard Test Method for Binding Sites Per Unit Length or Width of Pile Yarn Floor Coverings (Stitch and Gauge).
  • ASTM D5034: Standard Test Method for Breaking Strength of Textile Fabrics (Grab Test).
Turf & Infill System:
  • ASTM F355 Method A: Standard Test Method for Shock-Absorbing Properties of North American Football Field Playing Systems as Measured in the Field.
  • ASTM D2859: Standard Test Method for Flammability of Finished Textile Floor Covering Materials.
  • ASTM F1015: Standard Test Method for Relative Abrasiveness of Synthetic Turf Playing Surfaces.
  • DIN 18-035 Part 6: Water Permeability of Synthetic Turf Systems and Permeable Bases.
Tests Performed ProGrass Infinty
Ribbon Analysis  
Linear Density 8,205
Average Breaking Strength 18.17 lbs/force
Average Elongation 79.2%
Tenacity 1.01 grams/denier
Melt Point / Identification 120°C Polyethylene
Turf Analysis  
Total Weight 65.99 oz/yd2
Pile Weight 38.12 oz/yd2
Secondary Backing Weight 18.84 oz/yd2
Primary Backing Weight 8.03 oz/yd2
Average Tuft Bind Strength Without Infill 9.4 lbs/force
Average Tuft Bind Strength With Infill 10.0 lbs/force
Average Pile Height Minimum/Maximum 2.0"/2.25"
Stitch Rate 11 per 3"
Gauge 9/16
Average Grab Tear Strength-Length 246 lbs/force
Average Grab Tear Strength-Width 200 lbs/force
Turf & Infill System Analysis  
Pill Flammability1 8 out of 8 Pass
Pill Flammability2 7 out of 8 Pass
Relative Abrasiveness Index1 20 ± 2
Relative Abrasiveness Index2 18 ± 2
Water Permeability1 83.3 inches/hour
Water Permeability2 34.0 inches/hour
G-Max1 98
G-Max2 90

Infil System1: 3.0 lbs/ft2100% 10/30 Crumb Rubber

Infil System2: 3.0 lbs/ft2100% 10/30 Crumb Rubber 30% Silica Sand