Sourcing an anti-static power transmission belt requires more than accepting a supplier's conductivity claim. This guide shows Quality and Procurement teams how to evaluate an anti-static belt factory through electrical resistance testing, applicable ISO requirements, production control, traceability and test documentation. It explains the roles of ISO 1813 and ISO 9563, what buyers should request in test reports, how to compare suppliers, and what technical and commercial information to include in an RFQ.