Indian Turmeric/Finger Turmeric - Dofa Impex India's Largest Exporter. Specification of Turmeric Finger / Bulbs Flexibility Hard Curcumin Content Min 1.5% * Broken Pieces (fingers < 15mm) Max 5% Extraneous Matter Max 1% by weight Insect damage matter Max 1% by weight Defectives Rhizomes - max 5% by weight Moisture max 12% Total Ash max 9% Lead (ppm) max 2.5 ppm * Chromate test Negative Acid Insoluble Ash max 1.5% In case of Finger max 4% bulbs by weight Starch content max 60% Salmonella Absent in 25gm * E-coli - < 10cfu /g *