Rev. Rul. 58-108

The use of ion exchange resin `Amberlite-IR-120' for the stabilization of wines in a continuous column process is considered as being consistent with good commercial practice and may be approved by Assistant Regional Commissioners, Alcohol and Tobacco Tax, for use by winemakers, pursuant to the provisions of section 240.530 of the Wine Regulations. The overall change in the pH of the wine before and after treatment shall not be greater than 0.2 pH units. This recognition of `Amberlite-IR-120' for the treatment of wine is in addition to that relating to `Amberlite-IR-120 H' covered by Revenue Ruling 57-417, C.B. 1957-2, 968.

Revenue Ruling 55-603, C.B. 1-955-2, 709, containing a list of materials which have been approved for the treatment of wine, is hereby modified to include the above material. Other Revenue Rulings approving additional materials are as follows:

Revenue Ruling 56-9, C.B. 1956-1, 750;

Revenue Ruling 56-64, C.B. 1956-1, 751;

Revenue Ruling 56-341, C.B. 1956-2, 1042;

Revenue Ruling 56-415, C.B. 1956-2, 1042;

Revenue Ruling 56-551, C.B. 1956-2, 1043;

Revenue Ruling 56-626, C.B. 1956-2, 1043;

Revenue Ruling 57-175, C.B. 1957-1, 608;

Revenue Ruling 57-306, C.B. 1957-2, 967;

Revenue Ruling 57-417, C.B. 1957-2, 968;

Revenue Ruling 57-430, C.B. 1957-2, 968; and

Revenue Ruling 58-39, page 598.