Ohio Water Microbiology Lab
Research Topics
Internal Information
Ohio Water Science Center
USGS In Your State
USGS Water Science Centers are located in each state.
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OWML: QA/QC
Quality Assurance/Quality Control Manual: Ohio Water Microbiology
Laboratory
Analytical Balances
 Analytical
balances are used for accurate weighing of reagents and media. They are checked
and calibrated annually by the manufacturer’s service technician, and the
results are recorded in the LIMS. Calibration records are stored in the
equipment logbook. Balances must rest on a firm, level surface. Balance trays
are wiped off after each use with water or a surface disinfectant, such as
Conflikt or 70 percent ethanol. |
U.S. Department of the Interior | U.S. Geological Survey
