Patinas for Metal Artists
Barometric Pressure and Humidity
Photo Processes and Formulas
Science Experiments
Laboratory Procedures
Biodiesel Processing
Use this weight to calibrate your sensitive electronic scale or balance. Ohaus CS200 compact scale requires 200 grams mass weight to calibrate.
pH Paper, 5.5-8.0 range, 15 ft. roll Cat. No. - NC-1235 $8.50
Splash Goggles, Adult size Cat. No. - NC-2591 $4.95
Ohaus CS-200 Portable Digital Scale, 200g x 0.1g Cat. No. - NC-6557 $102.95
Digital Lab Stem Thermometer, DT510LAB Cat. No. - NC-6866 $28.95