Amendment 0003 Q-A for RFQ 1333ND21QNB640543-Brief Description.pdf

Amendment 0003 for NIST 1333ND21QNB640543

Brief Description- AMENDMENT 0003 NIST 1333ND21QNB640543

REQUIREMENTS: Gas Chromatograph with Flame Ionization/Mass Selective Detectors and Accessories

PURPOSE: The following Amendment 0003 is issued to 1.) publish Questions submitted by Vendors and the responses; and 2.) revise specifications within the Combined Synopsis/Solicitation as a result of the questions.

Question 1. Our Clarus GC has one auxiliary temp zone (controlled from TC) and we can add up to 2 additional external heater controllers as needed. Not needed with our design.

Answer 1. The existing sampling system was custom built by Wasson ECE Instrumentation and subsequently further customized at NIST to meet additional requirements. The sampling system and GC/FID/MSD sit on a custom platform directly adjacent to the shock tube and cannot be moved without significant cost and likelihood of data quality degradation. Components of the Wasson ECE system, including valves, gas flows, and heated temperature zones are currently controlled by the GC and its associated software. The needed GC/FID/MSD system shall therefore not only meet performance specifications but shall also be capable of controlling the specified components of the existing sampling system and have a physical design compatible with the existing apparatus.

Please see the revised Specifications which explains in more details.

The submission deadline for quotes is unchanged from Amendment 0002 which is September 14, 2021.

***The due date and time for receipt of quotations is September 14, 2021 no later than

4:00PM EST.

Only information received on or before the due date and time for receipt of quotations will be considered for award. Any quotation, or part thereof received after the due date and time for receipt of quotations, will be deemed late and not considered for award.

This ends Amendment 0003 for NIST 1333ND21QNB640543