Lovibond Tintometer MD 100 Manual De Instrucciones página 29

Iron LR L (A) / M225
Iron LR L (A)
0.03 - 2 mg/l Fe
Ferrozine / Thioglycolate
Material
EN
Required material (partly optional):
Reagents
Iron LR 2 Reagent Set
KS135 Pa1/Alk1-Phenolphthalein Sub-Alk P
KS144-CH2-FC4-Calcium Hardness Buffer
KP962-Ammonium Persulphate Powder
KS63-FE6-Thioglycolate/Molybdate HR RGT
KS63-FE6-Thioglycolate/Molybdate HR RGT
KS61-FE5-Ferrozin/Thioglycolate
Preparation
1. If there are strong complexing agents in the sample, the response time must be
extended until no further colour development is seen. However, very strong iron
complexes are not included in the measurement. In this event, the complexing agent
must be destroyed by means of oxidation with acid/persulphate and the sample also
neutralised to pH 6–9.
2. For the measurement of total iron, both suspended and dissolved, the sample must
be boiled with acid/persulphate. It must be neutralised back to pH 6–9 and refilled to
the original volume with deionised water.
30
Packaging Unit
1 Set
65 ml
65 ml
Powder / 40 g
30 ml
65 ml
65 ml
EN Method Reference Book 1.0
M225
FE
Part Number
56R018990
56L013565
56L014465
56P096240
56L006330
56L006365
56L006165