OAKTON® pH 4.01 Buffer Solution, Single, Pkg. of 20
pH Buffer Solution is premixed and rigorously tested for dependability
Operates your pH with maximum accuracy. Reagents standardized to NIST references. OAKTON pH 4.01 Buffer Solution has a ±0.01 accuracy at 25°C. Singles have unquestionable reliability. Each pouch contains 20mL, so there's no waste. Pouches are labeled with CAS numbers for identification. Temperature correction tables included. 4-1/2" x 5" x 4-1/2". Box of 20 pouches weighs 1 lb.