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Figure 1. Recommended locations (and test directions) for on-site testing.
Laboratory testing
For tests in the laboratory, the test specimen must be conditioned at the test
temperature (23 ± 2°C) for a minimum of 3 hours.
Test specimens for laboratory testing should be flat and have minimum dimensions of
0.5 m × 0.5 m, and include any relevant supporting layers or aggregate used in
construction.
Note: Loose-laid specimens should be anchored at the edges.
Test balls
A high-specification ball is required for court testing to reduce the effect of ball
properties on the measurement of surface characteristics (see Table 1).
Type of ball Pressurised
Mass 57.6 ± 0.3 g
Diameter 6.60 ± 0.05 cm (2.598 ± 0.020 inches)
Forward deformation 0.64 ± 0.04 cm (0.252 ± 0.016 inches)
Return deformation 0.94 ± 0.14 cm (0.370 ± 0.055 inches)
Rebound 141 ± 1 cm (55.5 ± 0.4 inches)
Woven cloth 55 ± 5% wool, 45 ± 5% nylon
Table 1. Ball specification for surface testing.
