H2O Analysis 16678 08012018.pdf
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- Solicitation number
- 1333ND20QNB610625
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This document outlines requirements for cooling tower maintenance and repair services at the National Institute of Standards and Technology Center for Neutron Research facility. The scope of work includes inspecting, cleaning, performing routine maintenance, and completing any necessary repairs on the main heavy water-moderated nuclear reactor's secondary cooling water cooling towers and associated subsystems over the next year. The cooling towers are located behind Building 235 and consist of a three-cell 2002 Balcke-Durr primary tower and a two-cell 2011 BAC modular secondary tower, with all cells containing aged Amarillo right-angle gear drives requiring special attention. Additional systems integrated with the cooling towers, such as a deicing mechanism, fire protection, and plume abatement equipment, are also included.
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QualiChem, Inc.
P.O. Box 926 • Salem, Virginia 24153
Phone: (540) 375-6700 • Fax: (540) 375-3880 www.qualichem.com
Customer No. Coastline Date Received: 07/25/18
Date Completed: 08/01/18
Company NIST
Location Gaithersburg, MD
System
Sample Name Makeup Cooling
Recirc
Sample Number #16678A #16678B
P-Alkalinity as CaCO3 0 ppm 20 ppm
M-Alkalinity as CaCO3 41 ppm 272 ppm
Total Phosphate as PO4 N/A ppm N/A ppm pH 6.5 8.6
Conductivity, Un-neutralized 230.7 uMS 1,271.0 uMS
Conductivity, neutralized N/A uMS N/A uMS
TDS (calculated) 173.0 ppm 953.3 ppm
Triazole N/A ppm 0.0 ppm
Glycol Type N/A N/A
Glycol Concentration N/A % v/v N/A % v/v
Reserve Alkalinity N/A mL N/A mL
PTSA N/A ppb 155.7 ppb
MP-AES Results
Calcium as Ca +2
16.3 ppm 160.5 ppm
Magnesium as Mg +2
4.1 ppm 27.5 ppm
Calcium Hardness as CaCO3 40.8 ppm 401.1 ppm
Magnesium Hardness as CaCO3 16.9 ppm 113.3 ppm
Total Hardness as CaCO3 57.7 ppm 514.4 ppm
Silica as SiO2 4.9 ppm 16.4 ppm
Total Iron as Fe 0.02 ppm 0.05 ppm
Copper as Cu <0.01 ppm 0.03 ppm
Molybdenum as Mo N/A ppm <0.02 ppm
IC Results
Chloride 37.7 ppm 164.0 ppm
Nitrite N/A ppm N/A ppm
Nitrate N/A ppm N/A ppm
Phosphate (as PO4) 0.8 ppm 1.2 ppm
Sulfate 7.6 ppm 173.3 ppm
ND = Not Detected
Detection Limit 0.1 ppm 0.1 ppm
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