Fibergrate gratings were subjected to UV degradation and strength testing per ASTM G153 which is prescribed in the ASME standard. In this G153 test, standard test coupons should retain at least 70% of their original strength when Tensile and Izod impact tests are performed. In fact, Fibergrate products retained 99% of tensile strength and 100% of Izod impact after exposure.
The testing results shown below indicate Fibergrate grating has a K factor of 1.01 for ASME A112.19.8. – 2008, section 3.2.2.3, which is the testing protocol for grates and grating covers for pool drains.
The most logical choice out of all the putlruded gratings which will meet the criteria is I4010, I4015, T1210 and T1215.This is all based on the open area and finger entrapment calculation. A Registered Design Professional needs to make the final decision in selecting the grating.