BS EN 17326-2020 Surfaces for sports areas – Determination of dimensional stability of shock pads used within sports systems.
This document specifies a method for determining the dimensional stability (bowing and curling) of shockpads used within sports surface systems.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements 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.
ISO 188. Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at
— ISO Online browsing platform: available at
4 Apparatus
4.1 Test rig
In accordance with Figures 1 and 2, comprising a flat rigid base plate and adjustable side frame with internal dimensions of 302 mm x 302 mm. The side frame shall be rigid and 50 mm ± 5 mm in height. The test rig shall allow the measurement of the distance between the test specimen and a fixed guide bar in three positions in two directions at 900 to each other to an accuracy of ±1 mm. The minimum distance between the top of the test specimen and reference bar shall he 100 mm. The measurement positions shall be:
— over the centre of the test specimen; and
— 10 mm ± 2 mm from the edge of the test specimen in each direction.BS EN 17326 pdf download.