Hach Sulfate Standard Solution, 100 mg/L as SO4 (NIST), 500 mL, 89149By Hach $38.95 | EA Quantity discounts available QuantityPrice Product #: 700689Mfr. Part #: 89149 This item is in stock Quantity -+ Add to Cart Free Ground Shipping On All Orders Over $1500!*Conditions Apply* Details Description For accuracy checks in sulfate determinations Product Specifications Concentrations 10... DetailsBackDescription For accuracy checks in sulfate determinations Product Specifications Concentrations 100 mg/L Description Sulfate as SO4 (NIST) Platform Solution