Flowmeter calibration serviceFlow Dynamics primary and secondary standard calibration for flowmeters from Badger Meter calibrates liquid and gas flowmeters from any manufacturer. It offers calibration at ± 0.025 to ± 0.05 percent of reading for liquid and ± 0.020 to ± 0.25 percent of reading for gas. It provides certified calibration data sheets with 10-point data graphs, comprehensive meter historical data, annual reminders, and a 10-day standard turnaround. 480/948-3789; www.badgermeter.com.Test tube rackThe Scienceware Switch-Grid test tube rack from Bel-Art Products stores up to two sizes of tubes at the same time with 25 possible tube size combinations in
