What testing standards apply to UV stability in acrylic fabric outdoor planters?

UV stability is a critical factor for acrylic fabric outdoor planters, ensuring they withstand prolonged sun exposure without fading or degrading. The primary testing standard for UV resistance in these materials is ASTM G154, which simulates accelerated weathering using fluorescent UV lamps. Other relevant standards include ISO 4892 and AATCC TM16, which evaluate colorfastness and material integrity under UV light. Manufacturers often test for 500+ hours of UV exposure to guarantee durability. Additionally, ASTM D4329 may apply for cyclic UV and moisture testing. Choosing planters meeting these standards ensures long-lasting performance in outdoor environments.