Shop › Hach Iron Standard Solution, 1 mg/L as Fe (NIST), 500 mL P/N: 13949 Image 1 of 1 Hach Iron Standard Solution, 1 mg/L as Fe (NIST), 500 mL P/N: 13949 $52.00 Add To Cart Added! Product Number: 13949For accuracy checks in iron determinations Product Number: 13949For accuracy checks in iron determinations You Might Also Like Hach FerroVer Iron Reagent Powder Pillows, 10 mL, pk/1000 P/N: 2105728 $475.00 Hach 5500sc Standard 1 Silica, 2 L, for 5500sc Silica Analyzer P/N: 6775002 $109.00 Hach FerroZine Reagent Solution Iron Analysis .009-1.4 mg/L Fe P/N: 230149 $155.00 Hach Silica Reagents Low Range 0.01-1.60 mg/L P/N: 2459300 $145.00 Hach ULR Sulfite Fluorescence Test Kit, 6‐500 µg/L (ppb), 100 Tests P/N: 34250000 $217.00