Hach buffered dilution water pillows, when prepared according to the instructions, is formulated to the specifications as described in Standard Methods for the Examination of Water and Wastewater, 9050C.1.a.1 “Buffered water”.
Buffered Dilution Water Pillows, pk/25 (magnesium chloride and potassium dihydrogen phosphate, makes 25 L dilution water; 1 liter per pillow).
Product Number 2143166.