For outdoor artificial turf, color stability should be considered together with light fastness and accelerated weathering performance.

Methods such as GB/T 8427 can be relevant when evaluating textile-type color fastness to artificial light, while specific artificial-turf products may also be evaluated using polymer/weathering methods appropriate to their construction.

The important point is that a color-fastness test and a UV-weathering test do not necessarily measure exactly the same thing.

Therefore, buyers should ask for:

1. The actual test method;
2. The tested product/model;
3. The test result;
4. The exposure conditions;
5. Whether the report corresponds to the supplied product.

Rather than simply accepting a statement such as “UV resistant.”

For international projects, relevant EN, ISO, ASTM or project-specific requirements may also apply.