OIV-MA-B1-02 Certificates of analysis

Certificate No. 1

• Color
• Clarity
• Specific gravity at 20C
• Alcoholic content at 20C
• Total dry extract g/L
• Sugar g/L
• Total sulfur dioxide mg/L
• pH
• Total acidity meq/L
• Volatile acidity meq/L
• Test for malvidin diglucoside
• Over pressure measurement of carbon dioxide in sparkling wines
• Differentiation of very sweet wine and fortified must in the case of sweet wines

Certificate No. 2

Certificate No. 1 is completed and the following determinations are added:

• Ash and alkaline ash g/L
• Potassium g/L
• Iron mg/L
• Copper mg/L
• Free sulfur dioxide mg/L
• Sorbic acid mg/L
• Verification of malolactic fermentation
• Citric acid mg/L
• Tartaric acid g/L
• Folin-Ciocalteu Index
• Chromatic Indexes

The following determinations are optional:

• Excess sodium mg/L
• Calcium, magnesium mg/L
• Sulfates mg/L
• Test of fermentability
• Test for artificial colorants