Without wishing to be exhaustive, here are some technical aspects that you need to know when buying any artificial turf:
The Dtex is a unit of measure that indicates the thread decigrammes weight per 10,000 meters of yarn. So the lower the decitex, the finer the thread. Decitex are normally followed by a slash and a number, for example: 8800 / 8, this would mean that the grass has a fiber of 8800 Dtex and 8 ends, so that each end has 1100 Dtex.
For a gardening artificial turf it is advisable for each end between 850 and 1100 dtex. However for an artificial turf for football, for example, each end should be between 1800 and 2000 Dtex, because the use will be more intensive. The density of the fiber indicates the turf’s softness, so the higher the density, the better the footstep and the resilience of the grass.
The micron measures the thickness of the fiber, ie the narrow part of it (see explanatory photo). This is important because durability of the turf depends largely on the micron.
The more microns, the more quantity of material and therefore it will have a higher durability, as it will take longer to wear by the action of UV rays. As a reference, an artificial turf for gardening should have at least 80 microns.