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AMENDMENT 0004
Purpose: Provide Government Response to Submitted Questions RFQ Number: 1333ND23QNB680322 Project: Liquid Nitrogen Supply & Services Date: 08/14/23
The purpose of amendment 0001 is to provide the Government response to submitted questions.
Question 1: What is the acceptable range for trace O2 and H20 in the LN2 deliveries?
Response 1: In accordance with the Statement of Work which is attached to the SF1449 (page 16); the tables below identify the acceptable range for trace O2 and H20 in the LN2 deliveries:
LIQUID NITROGEN SPECIFICATIONS
1. Gaithersburg, MD
| Carbon Dioxide (CO2) |
| 0.5PPM |
| Carbon Monoxide (CO) |
| 2 PPM |
| Water (H20) (PPMV) |
| 0.5 PPM |
| Total Hydrocarbons -Expressed as Methane (THC) |
| 0.5 PPM |
| Total Specified Impurities |
| 6 PPM |
2. Boulder, CO
| Carbon Dioxide (CO2) |
| 0.5 PPM |
| Carbon Monoxide (CO) |
| 2 PPM |
| Total Hydrocarbons -Expressed as Methane (THC) |
| 0.5 PPM |
| Total Specified Impurities |
| 10 or less PPM |
3. Charleston, SC
| Carbon Dioxide (CO2) |
| 0.5 PPM |
| Carbon Monoxide (CO) |
| 2 PPM |
| Oxygen (O2) |
| 4 or less PPM |
| Water (H20) (PPMV) |
| 0.5 PPM |
| Total Hydrocarbons -Expressed as Methane (THC) |
| 0.5 PPM |
| Total Specified Impurities |
| 6 PPM |
Question 2: Is a tolerance of +/- 1 ppm acceptable?
Response 2: Yes.
Question 3: Is it acceptable to demonstrate the trace components of hydrogen (H2) on a quarterly basis, instead of including them in each load's Certificate of Analysis?
Response 3: Yes, demonstration of trace components of hydrogen on a quarterly basis is acceptable, plus on demand if NIST suspects a problem.
Question 4: Is NIST considering issuing more than one contract award if it is found to be of best value to the government?
Response 4: No. The Government intends to only issue one contract award for this opportunity.
END OF AMENDMENT 0001
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