The DOE National Energy Technology Laboratory is soliciting quotes for an Anton Paar SurPass 2 Surface Zeta Potential Analyzer or equal, under a total small business set-aside. The applicable NAICS code is 334516 with a 1000-employee size standard, and only quotes from small business concerns will be considered. Quotes must be submitted through FedConnect, and offerors must complete representations and certifications or have an up-to-date SAM.gov profile. The award will be a single firm-fixed-price contract based on the lowest priced technically acceptable quote, with technical acceptability determined by submitted descriptive literature demonstrating the product meets or exceeds specifications. Equal products must include comprehensive technical data to show compliance, and F.O.B. destination applies.