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| Chemical Tests |
| IMPORTANT: Please review Sample Submission Information before sending a sample.
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| Test |
Method |
Min. Sample Qty |
| Acidity, Total titratable |
pH meter |
25 ml |
| Acidity, Volatile |
Cash still, corrected for SO2
Acetic acid, enzymatic |
50 ml
50 ml |
| Alcohol by volume |
Ebulliometer
NIR |
150 ml (full bottle)
150 ml (full bottle) |
| Brix |
Digital Density Meter (juice/must/wine)
Refractometer (grapes/juice)
Hydrometer (wine/must) |
100 ml
5 ml
250 ml |
| Carbon dioxide |
Carbodoseur |
300 ml
(full bottle) |
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Cold stability |
Traditional (freeze/thaw) |
150 ml |
Heat/protein stability
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Incubation only (no trials)
Bentonite fining trial set (includes incubation
tests and post-fining test on wine in cellar)
Send sample of your bentonite |
25 ml
750 ml |
ML Fermentation |
Malic acid, enzymatic |
50 ml |
Metals (copper or iron) |
Total metals/Acid dig. ICP-OES |
50 ml |
| Nitrogen |
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Ammonia
Alpha-amino acids
Both tests
Nutrient rec. |
Enzymatic
NOPA (Butzke) |
25 ml
25 ml
50 ml |
pH |
Metrohm 827 meter |
50 ml |
| Potassium |
Specific ion |
enquire |
Residual Sugar |
Sugar tablet test (clinitest)
Rebelein
Inverted (samples sweetened with sucrose)
Glucose/fructose, enzymatic |
5 ml
50 ml
50 ml
50 ml |
| Sulphur dioxide |
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Free
Total
Free & Total
SO2 Recommendation |
Aeration/oxidation
Aeration/oxidation
Aeration/oxidation
Calculation (we need to test pH, F&T SO2)
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50 ml (full bottle)
50 ml (full bottle)
100 ml (full bottle)
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