BS EN 15301-1:2007 – Surfaces for sports areas — Part 1: Determination of rotational resistance

1 Scope
This part of EN 15301 specifies methods for determining the rotational resistance of sports surfaces.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 12229, Surfaces for sports areas – Procedure for the preparation of synthetic turf and needle-punch test pieces
3 Principle
The force required to initiate rotational movement of a test sole in contact with the sports surface being tested is measured.
4 Apparatus
4.1 The apparatus shall consist of the following components (see Figure 1).
 Test foot, comprised of a steel disc (150 ± 2) mm in diameter to which the appropriate test sole is mounted.
 Shaft with attached lifting handles that are centrally attached to the centre of the studded disc.
 Two-handled mechanical torque wrench with a scale marked from 0 Nm to 80 Nm in a maximum of 2 Nm increments, that attaches to the top of the shaft.
 Set of annular weights that rest centrally on the upper surface of the studded disc allowing free movement of the disc beneath the weights. The total mass of the apparatus (test foot, shaft, torque wrench and weights) shall be (46 ± 2) kg.
 Tripod and guide to minimize any lateral movement of the test foot during testing. The tripod shall not restrict the free rotation of the shaft and the guide shall incorporate a means of holding and dropping theweighted test foot onto the test specimen from a height of (60 ± 5) mm.
4.2 The test sole shall be as specified in the product specification. Standard test soles are as follows:
a) Football stud test sole;
Six football studs 1 equally spaced on the bottom surface of the test foot (46 ± 1) mm from the centre of the disc. The studs shall be as shown in Figure 2, be manufactured from plastic and have a Shore A hardness of (96 ± 2).
BS EN 15301-1:2007 – Surfaces for sports areas — Part 1: Determination of rotational resistance