Patinas for Metal Artists
Barometric Pressure and Humidity
Photo Processes and Formulas
Science Experiments
Laboratory Procedures
Biodiesel Processing
These slow flow, 12.5 cm diameter qualitative grade plain filter circles are ideal for retention of the finest particles or precipates.
Round Alcohol Burner, 150ml Cat. No. - M-2149 $9.40
Pyrex Beaker, 150ml Cat. No. - NC-0068 $5.75
Test Tube and Bottle Brush, 10.5 inches Cat. No. - NC-0146 $2.10
Pyrex Beaker, 250ml Cat. No. - G-1629 $6.30