|
pH value
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ISO 10390
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Slurrying
|
Direct measurement
|
-
|
pH value for the determination of
the leaching behaviour of inorganic components from waste
|
DIN CEN/ TS 14997
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Continuous pH control to
determine the influence of
pH value on leaching behaviour
|
Direct measurement (with continuous eluate analysis)
|
-
|
|
Conductivity
|
ISO 1265
|
Slurrying
|
Direct measurement
|
-
|
Total organic carbon
(TOC), Walkley-Black method
|
-
|
K2Cr2O7/H2SO4
digestion
|
Visually with barium
diphenylamine sulfonate
|
1 mol/L FeSO4
(acidic)
|
|
Aluminium
|
-
|
Extraction
|
Visually, phenolphthalein
|
0.02 mol/L NaOH
|
Carbonate content, Piper method
(also known as rapid titration or acid neutralization method)
|
- |
Soil sample is shaken with
0.2 mol/L HCl and allowed to
settle; 10 mL of the supernatant solution is back-titrated with NaOH
|
a) Photometrically with phenolphthalein
b) Potentiometrically,
SET titration to pH 7.8
|
0.1 mol/L NaOH
|
Acidity
«Exchangeable acidity» (H + Al)
|
-
|
Ion exchange with
1 mol/L KCl
|
a) Photometrically with phenolphthalein
b) Potentiometrically,
SET titration to pH 7.6
|
0.025 mol/L NaOH
|
|
Total cyanide and easily released cyanide
|
ISO 1262
|
Distillation
|
a) Photometrically with phenolphthalein
b) Potentiometrically
|
0.005 mol/L AgNO3
|
|
Soluble anions carbonate/bicarbonate (alkalinity)
|
-
|
Extraction with CO2-free dist. water
|
SET titration to pH 8.4 and 4.4
|
0.1 mol/L HCl
|