For international trade, mirrors must meet specific safety and quality benchmarks. Ensure the supplier complies with EN 1036-1 (European standard for silvered glass mirrors) or ASTM C1503 (Standard Specification for Silvered Flat Glass Mirror). If the mirrors are intended for public spaces, verify if they offer Safety Film Backing (CAT I or CAT II), which prevents shards from scattering if the glass breaks. For eco-conscious markets, request Lead-Free and Copper-Free mirrors, which are more environmentally friendly and offer superior resistance to atmospheric corrosion.