Lab Chem Potassium AA Standard, 1000 ppm (1mL = 1mg K), 125 mL $29.50 | EA Quantity discounts available QuantityPrice Product #: 707808Mfr. Part #: LC 201007Out of Stock - Ships in 10 Days Quantity -+ Add to Cart Free Ground Shipping On All Orders Over $1500!*Conditions Apply* Details Description 1000 ppm Potassium AA Standard, (1mL = 1mg K), 125 mL Features 1000 ppm (1mL = 1mg K) NIST-Traceable DetailsBackDescription 1000 ppm Potassium AA Standard, (1mL = 1mg K), 125 mL Features 1000 ppm (1mL = 1mg K) NIST-Traceable