The preservative used in the case of samples of any milk including toned, separated and skimmed milk), standardized milk, chhanna, skimmed milk
chhanna, cream, 9ice-candy, dahi, khoa or 8khoa based and paneer based sweets, such as Kalakund and Burfi, Chutney and prepared foods, gur in liquid or semi-liquid form, prepared coffee and prepared tea, shall be the liquid commonly known as "formalin" that is to say, a liquid containing about 40 percent of formaldehyde in aqueous solution in the proportion of 0.1 ml (two drops) for 25 ml or 25 grams.
Provided that in case of samples of ice cream and mixed ice cream, the preservative used shall be the liquid commonly known as formalin, that is to say a liquid containing about 40 per cent of formaldehyde in acqueous solution in the proportion of 0.6 ml for 100 ml or 100 gms.