Amendment 0001 adds the redacted Justification and Approval explaining why this requirement is being restricted to a specific brand.This is a combined synopsis/solicitation for commercial products or commercial services prepared in accordance with FAR subpart 12.6, Streamlined Procedures for Evaluation and Solicitation for Commercial Items, in conjunction with the policies and procedures for solicitation, evaluation and award prescribed in FAR Part 13-Simplified Acquisition Procedures, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation; quotes are being requested, and a written solicitation will not be issued.The US Army Medical Research Acquisition Activity (USAMRAA) requests responses from qualified sources capable of providing Two Purification Instruments restricted to the brand Teledyne Isco CombiFlash EZ Prep Chromatography Systems with ELSD Detectors. Please see attached documents for further details.