For pH Test Kit (color cube) pk/50 Powder Pillows Hach products are intended for sale/shipment within the US only. International customers should contact their local Hach distributor to place orders for Hach products.

1g/L or 5g/L Hach products are intended for sale/shipment within the US only. International customers should contact their local Hach distributor to place orders for Hach products.

If you have ever questioned the result of an analytical test, you'll immediately appreciate the value of using standard solutions. These solutions contain a defined concentration of analyte, allowing you to quickly verify that instrument operation, reagent performance, and variations in operator…