US$ 38.99
and microbiological analysis procedures
on reference scale
used in step-up and step-down ratio demonstrations of Faraday's law
Labeled relay demonstration circuit where the coil-powering circuit remains completely separate from the switched circuit
Clear pH 7.00 Standard Buffer Solution, 1L Essential Supply and microbiological analysis proceduresPotassium phosphate clear pH 7. 00 buffer solution at 1L, holding pH stable at 25 degrees C for calibrating meters and electrodes at the neutral reference point in chemistry or biochemistry labs.
US$ 38.99
US$ 26.90
US$ 48.99