Hardness, Magnesium - Hanna Instruments HI83300 Instruction Manual

8.26. HARDNESS, MAGNESIUM

SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
REQUIRED REAGENTS
Code
HI93719A‑0
HI93719B‑0
HI93719C‑0
HI93719D‑0
REAGENT SETS
HI93719‑01
HI93719‑03
For other accessories see page 200.
MEASUREMENT PROCEDURE
• Select the Hardness (Magnesium)
described in the Method Selection section (see page 18).
• Rinse a graduated beaker several times with unreacted sample
before filling it to the 50 mL mark with the sample.
• Add 0.5 mL of
swirl to mix.
• Add 0.5 mL of
swirl to mix. Use this solution to rinse 2 cuvettes.
94
0.00 to 2.00 mg/L (CaCO
0.01 mg/L
±0.11 mg/L ±5% of reading at 25 °C
LED with narrow band interference filter @ 525 nm
Adaptation of the Standard Methods for the Examination of Water and
Wastewater, 18th edition, EDTA Colorimetric method.
Description
Magnesium Hardness Reagent A
Magnesium Hardness Reagent B
Magnesium Hardness Reagent C
Magnesium Hardness Reagent D
Reagents for 100 tests
Reagents for 300 tests
method using the procedure
HI93719A‑0 Magnesium Hardness Reagent A, then
HI93719B‑0 Magnesium Hardness Reagent B and
)
3
Quantity
0.5 mL
0.5 mL
1 drop
1 drop