General Laboratory Technical References
Browse technical guides for pipette accuracy, laboratory calibration, pH measurements, instrument cleaning, mixing and stirring equipment, and reference liquids.

Achieving Optimum Accuracy with Adjustable-Volume Pipettes
Ammonia Ion-Selective Electrode (ISE)
Balance Calibration
Calibration Accuracy & Precision
Cleaning the Karl Fischer Reaction Cell
Drierite
Introduction to pH
Kjeldahl Standard Operating Procedure
Labware Washer Guide
Microscope Cleaning & Care
Stir Bar Actual Size Guide
Tuttnauer Autoclave Cleaning & Maintenance
Selecting an Overhead Stirrer
Homogenizer vs. Overhead Stirrer
Magnetic Stirrer or Overhead Stirrer
Selecting a Stirring Impeller
Passivated or Electropolished Rods
Stainless Steel Grades for Stirring Impellers
Immersion Oils
Refractive Index Liquids
Brix Liquids
Master Calibration Liquids