To ensure that a piece of synthetic grass is up to standard for being safe, long-lasting, and does not have adverse impact on one’s sports performance, there are several vigorous tests that it has to undergo. Such tests often incorporate the notion of shock absorption, sturdiness, and its response and ductile strength.
Shock absorption is the primal test to warrant the suitability of a turf for the use of children in playgrounds or schools. An accelerometer is usually employed in this test as a good shock absorber is believed to take in and disintegrate external energy. In the case of a sharp vertical pressure, the shock padding right beneath the artificial grass should be able to accomplish that. Hence the accelerometer takes the role of a spring attached damped mass, when exposed to gravity, the mass will be displaced until it is being stopped by another external force, large enough to balance it. The absorption will then be measured in term of the acceleration that the accelerometer will experience while going through a freefall quantified in metres per squared second.
Next, durability marks the synthetic grass’s life expectancy. In the case of more than 300 hours per annual usage, natural grass is never ideal sustainably to be used as high quality playing surface for various sports. A stud roll machine, thus, mimic the intensity of heavy sports habit as a way to determine the number of hours that a turf is able to endure. A reliable turf should be able to withstand at least 600 hours before any form of degradation is to take place.
In reaction and tensile strength tests, artificial grass will be challenged in terms of their responses to rolling, friction, and bounciness. This shall put the e-layer – the composite coat under the top layer of artificial grass to test. A model synthetic turf should embrace the quality of real turf yet able to tolerant any forms of pulling. Usually, a humble sample if extracted from the turf and pulled by a gradually increasing force, so that its tensile strength can be measured in Mega Pascals (MPa). The higher the MPa a turf can endure, the better it is. Furthermore, there is also a need to meet any criteria that are set up by sports standard.
Quality testing itself is a form of art because of the kind of precisions and details involved. Because of this, it is equally important to consider the amount of effort a company spent on researching and developing their artificial grass.