This opportunity is a 100% small business set-aside for the National Institute of Standards and Technology (NIST) to produce Standard Reference Material 1951, specifically 6,000 vials of each of two serum materials. The contractor must acquire a minimum of 12 liters of pooled serum with native cholesterol levels and aliquot it into vials suitable for long-term storage at -80°C. Performance will involve producing the materials for NIST, though a specific location for services is not mentioned. No budget amount is specified in the description. All questions must be submitted electronically by July 16, 2026, and quotes are due by July 30, 2026.