5 Procurement of sample material

Mapping, emissions and environmental and health assessment of chemical substances in artificial turf

Samples of infill, artificial turf mats and any pads have been procured by contacting suppliers approved by DBU as well as by contacting manufacturers or importers of infill for artificial turf.

The following samples have been procured:

Table 5.1 List of infill materials

Infill no.	Sample type	Supplier no.
1	Granulated car tyres, black	1
2	Granulated car tyres, black	2
3	PUR-coated granulated car tyres, dyed green	3
4	EPDM granules	3
5	SBR rubber granules	4
6	SBR granules, dyed brown	4
7	Grey industrial rubber	4
8	TPE	5
9	Coir fibre based	5
10	TPE in 3 colours, brown, light brown, green	6
11	TPE, dark brown (Terra XPS)	7
12	Green (unknown type)	4
13	Industrial rubber, dyed green	4
14	Industrial rubber from artificial turf pitch 1	4
15	Industrial rubber, used, from artificial turf pitch 1	4
16	Granulated car tyres from artificial turf pitch 2	4

Table 5.2 List of artificial turf mats

Artificial turf no.	Sample type	Supplier no.
1	Artificial turf mats	5
2	Artificial turf mats	8
3	Artificial turf mats	9
4	Artificial turf mats	9
5	Artificial turf mats	10
6	Artificial turf mats	10
7	Artificial turf mats	11
8	Artificial turf mats	4

Table 5.3 List of pads

Elastic pad no.	Sample type	Supplier no.
1	Foamed reuse-PEX	10
2	PUR-bound granulated rubber (not tyres)	11

Both used and new infills from artificial turf pitch no. 1, where the infill is grey industrial rubber, and used infill from artificial turf pitch no. 2, where the infill is granulated car tyres, have been collected.

Table 5.4 List of artificial turf pitches

Artificial turf pitch no.	Sample type	Supplier no.
1	Infill	4
2	Infill	4

The expectation is that an indication can be obtained, based on the used infills from the two pitches, of whether the zinc leaching is reduced, unchanged or increased, given the pitches were installed two years ago.

Among the many samples collected, it has been prioritised which products should be selected for analysis and which analysis parameters should be included for the selected samples. This has been done based on a knowledge of the chemical structure of the various materials used, auxiliaries added and known degradation products.

It is, for example, not relevant to analyse for zinc in TPE, which is not vulcanised rubber.