BS EN 17409-2020 Surfaces for sports areas – Code of practice for the sampling of performance infills used within synthetic turf surfaces.
5.3 Sampling point and apparatus
Based on health and safety asssments and producer equipment, a fixed sampling point for the collection of sample increments shall be chosen for each material fraction to be monitored. Sampling shall be carried out using a sample box or other suitable equipment.
The: sampling box shall be passed through the stream of flling materlal so that It uniformly cuts the full flow of flling material. The box shall be large enough so that it does not become overloaded. Automatic systems fufilling these criteria may also be used.
NOTE A procedure for preparing samples for chemical analysis is given in AnnexA.
5.4 Size of sample increment
The sampling box shall have a capacity of not less than 0,51 (0.000 5 m).
The sampling operator shall record the approximate capacity of the sampling device in cubic decimetres.
5.5 Number of increments
One Increment shall be taken per 10t of produced infll with a minlmum of four increments per lot.
Where daily or weekly production quantities are small, the taking of increments should be increased to ensure the lot comprises at least four increments.
6 Method 2一sampling from big bags
6.1 Principle
The laboratory sample is created by mixing several increments removed with a sampling tool from at least three levels, with at least one located on each level, as specified in 6.3.
6.2 Apparatus
6.2.1 Sampling tool
This tool shall be designed to take samples of dry or slightly cohesive wet materials, It shall be shaped in such a way to alow the operator to reach different heights by simply screwing the tool into the big bag. Its opening shall be wider than three times the size of the largest particle expected to be present in the big bag.
6.2.2 Measuring flask
Container of known volume; greater than 1 10,001 m3].
6.2.3 Container
Containers shall be used to recover the increments.BS EN 17409 pdf download.