ENVIRONMENTAL FINAL GOVERNING STANDARDS ITALY

ITALY - 3 Drinking Water
Parameter Methodology
IRSA/CNR 1
Analytical Method
Code
membrane)
Method
Detection
Limit
Conductivity Electrometry 2030
Copper Polarography, or
Atomic absorption spectrometry,
or
Molecular absorption
spectrophotometry
3250 0.01 mg/l
Cyanide Molecular absorption
spectrophotometry, or
Method with specific electrodes
4070 0.001 mg/l
1,2 dichloroethane Gas chromatography 5150 0.1 µg/l
Epichlorohydrin Quantitative determination 5150 0.1 µg/l
Dry residues Sample evaporation and weighing
upon drying at 180°C
2090
Fluoride Molecular absorption
spectrophotometry upon
distillation if necessary, or
Method with specific electrodes
4100 0.05 mg/l
Hydrogen ion Electrometry The measure should
concentration
preferably be
conducted in place,
when sampling.
The value must
refer to the water
temperature when
drawing is made.
Iron Atomic absorption spectrometry,
or
Molecular absorption
spectrophotometry
3160 0.02 mg/l
Lead Atomic absorption spectrometry,
or
Polarography
3230 0.05 mg/l
Manganese Atomic absorption spectrometry,
or
Molecular absorption
spectrophotometry
3190 0.01 mg/l
Mercury Atomic absorption spectrometry
without flame (on cold steam)
3200 0.1 µg/l
NH4
Molecular absorption
4030 0.05 – 2.00
spectrophotometry, or
Volumetric test upon distillation
mg/l
Nickel Atomic absorption spectrometry 3220 0.02 mg/l
NO3 Molecular absorption 4040 0.5 – 5.0 mg/l
September 2012 Italy FGS 3-48
Revision 0