Buffer for hardness and chelant determination by titration, pH 10.1 ± 0.1 at 20°C. Hach methods 8213 and 8226.Also used in Hach Phenols method 8047.500ml bottle42449, Hardness 1 Buffer SolnSKU: 42449 C$86.00 Regular PriceC$77.50Sale PriceQuantity*Add to CartBuy Now