Synthetic turf testing - safety and quality for sports pitches

from suitability tests in the laboratory to control tests on the sports field

Synthetic turf testing - safety and quality for sports pitches

The standards for synthetic turf sports fields differentiate between various test methods. These tests provide information on whether the synthetic turf carpet or system complies with the specifications set out in the relevant standards and can be carried out in a laboratory or in situ on a sports field that has already been constructed. A distinction is made between initial tests, control tests and product development tests, as well as quality control. ISP GmbH – Institut für Sportstättenprüfung is your trusted provider of these comprehensive testing services.

Test methods

Initial testing takes place in a laboratory. These tests are used to assess whether a synthetic turf product of a given manufacturer complies with the requirements of the relevant standards. This is usually done before a product is launched on the market. Elastic layers and infill material (infill granules) can also be tested in the laboratory. The tests provide manufacturers with the certainty that their products meet the requirements of the relevant standards.

Pursuant to DIN 18200, quality control may encompass tests within the scope of factory production control and third-party monitoring, for instance. The testing process serves to ensure that both the production conditions and the product itself comply with the quality control specifications.

Control tests are usually conducted on a finished sports field, but it is also possible to test individual components in a laboratory. These tests are used to ascertain whether the finished synthetic turf system, in its entirety, meets the requirements of the relevant standards.

This involves verifying that the manufacturing company adheres to all stipulated production requirements and that the products' properties conform with the outcomes of the initial testing. Following the test, as the operator of a newly built facility, you can be confident that your sports field is fit for purpose and can be used to practise sports in accordance with the relevant standards.

Furthermore, tests are conducted during the period of use to ascertain whether a synthetic turf sports field that has been in use for a considerable time (still) meets the requirements of the relevant standard. This can, for example, demonstrate the need for refurbishment or give you, as the operator, peace of mind that your sports field is still safe for use.

A special test for manufacturers of synthetic turf systems and other components is the product development test. It entails the collaborative design of a new product or the further development of an existing one between the laboratory and the manufacturer. The process involves ongoing laboratory testing during product development to ensure that the product remains compliant with the relevant standards at various stages of the process. The manufacturer and laboratory also exchange information in order to make joint progress in the development process.

ISP GmbH – Institut für Sportstättenprüfung provides all of the aforementioned test methods. As an accredited institute with our own in-house testing laboratory, we are well-equipped to conduct initial tests in accordance with the DIN EN 15330 series of standards and DIN 18035-7.

Our comprehensive range of services also includes product development testing, which we carry out in close cooperation with the manufacturers. Furthermore, we offer on-site control testing and testing during the service life of your existing sports field using standardised test equipment.

Following each test, a comprehensive report on the testing of your synthetic turf or synthetic turf systems will be provided.

Individual tests within the scope of DIN EN 15330 / DIN 18035-7

What do individual tests entail? For instance, the rotational resistance test involves a test foot equipped with studs, which simulates a sports shoe and its wearer, being attached to a spindle on a tripod frame. The test foot is dropped onto the synthetic turf surface from a low height and slowly rotated by at least 45 degrees. A torque wrench is used to measure the resistance during the rotation. This value (the mean of multiple measurements) is then compared with the specification set out in the standard. It is imperative to measure the rotational resistance, as deviations from the standard may increase the risk of injury to athletes.

Another common test employed for synthetic turf systems is the shock absorption test, involving the use of the Artificial Athlete model. A 20kg mass is dropped onto the surface along a guide column. A force transducer measures the impact force applied to the surface. This test also involves comparing the mean value with the reference range specified in the standard following multiple test iterations. The primary objective is to minimise the risk of injury to the athletes.

In the third example, the vertical ball behaviour test, a ball is dropped vertically onto the surface from a special device. The vertical ball behaviour height is recorded using an acoustic recording apparatus. For comparison purposes, the entire procedure is also carried out on a concrete test surface in advance, in order to obtain comparative values. Depending on the specific sport for which the synthetic turf system is intended to be used, it is important that the ball exhibits the anticipated behaviour upon impact. For example, if it constantly bounces at a skewed angle or nearly comes to a halt after impact, this would not accurately reflect the manner in which the sport is typically played. For this reason, the standards explicitly delineate the values that must be observed for vertical ball behaviour.

ServicesHave your synthetic turf sports facility checked.

The test methods described above are important for assessing and ensuring that a synthetic turf system is safe and fit to play on. They may vary depending on the stage of development and the client’s requirements.

Benefit from the extensive expertise and experience of ISP GmbH – Institut für Sportstättenprüfung by choosing to have your synthetic turf carpet or system professionally tested by us.

Contact us

We will be happy to advise you on the procedure and background to testing your synthetic turf sports facility.

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