Fact Sheets

Fact Sheets

Irrigation Water Analysis

DO YOU KNOW THE QUALITY OF YOUR IRRIGATION WATER Water quality guidelines recommended for irrigation and general on-farm and domestic use have been developed by the Primary Industries and Natural Resource Management Ministerial Counicils. The guidelines cover several water parameters that should be analysed to ensure your water is suitable for its intended use. At […]

Grapevine Petiole Analysis

Petiole testing can provide a snapshot of the nutrient status of the vine. Obtaining quantitative information on nutrient levels can assist in determining the effectiveness of fertiliser applications and also help identify the cause of any specific vine problems. The following table outlines nutrient guidelines for the full list of parameters tested in our Petiole […]

Allergen Residue Analysis

From 1 July 2012, new allergen labelling requirements came into effect in the European Union (EU). If milk (casein) or egg products have been used and the wine has not tested negative for these residues using a technique with a detection limit of 0.25mg/L, then the presence of allergens must be indicated on the label. […]

Standardising Sodium Hydroxide Solutions

“Do you know the correct concentration of your sodium hydroxide solution?” Introduction Sodium hydroxide (NaOH) solutions are one of the main reagents used in a wine laboratory. The accuracy of your Sulfur Dioxide, Titratable Acidity (TA) and Volatile Acidity (VA) results are dependent on these solutions having accurately known concentration values. NaOH absorbs carbon dioxide […]