Hach DR2400 - Page 341

Iron, Total
Iron, Total
IronTot_AVPP_Other_FVR_Eng_Ody.fm Page 5 of 6
3. Touch On. Touch Adjust to accept the displayed concentration. If an alternate
concentration is used, touch the number in the box to enter the actual
concentration, then touch
OK. Touch Adjust.
See Section 3.2.4 Adjusting the Standard Curve on page 40 for more information.
Method Performance
Precision
Standard: 1.000 mg/L Fe
See Section 3.4.3 Precision on page 44 for more information, or if the standard
concentration did not fall within the specified range.
Sensitivity
See Section 3.4.5 Sensitivity on page 44 for more information.
Summary of Method
FerroVer Iron Reagent converts all soluble iron and most insoluble forms of iron
in the sample to soluble ferrous iron. The ferrous iron reacts with the
1,10 phenanthroline indicator in the reagent to form an orange color in
proportion to the iron concentration. Test results are measured at 510 nm.
Required Reagents
Quantity Required
Description per test Unit Cat. No.
FerroVer
®
Iron Reagent Powder Pillows (for 10-mL sample)............1 pillow........... 100/pkg.............21057-69
or
FerroVer
®
Iron Reagent AccuVac
®
Ampuls .........................................1 ampul........... 25/pkg...............25070-25
Required Apparatus
Sample Cells, 10-mL, w/cap...................................................................2 ....................... 6/pkg.................24276-06
Beaker, 50-mL............................................................................................1 ....................... each.................... 500-41H
Required Standards
Iron Standard Solution, 100-mg/L................................................................................... 100 mL...............14175-42
Iron Standard Solution, 10-mL Voluette
®
Ampule, 50-mg/L as Fe............................ 16/pkg...............14254-10
Water, deionized ................................................................................................................. 4 liters ....................272-56
Program 95% Confidence Limits of Distribution
265 0.989–1.011 mg/L Fe
267 0.977–1.023 mg/L Fe
Program Portion of Curve ∆Abs ∆Concentration
265 Entire range 0.010 0.022 mg/L Fe
267 Entire range 0.010 0.023 mg/L Fe