A-A-20094A
December 4, 1987
SUPERSEDING
A-A-20094
February 9, 1983
COMMERCIAL ITEM DESCRIPTION
BAKING POWDER
The U.S. Department of Agriculture has authorized the use of this Commercial Item Description in preference to Type I of Federal Specification EE-B-25.
This Commercial Item Description (CID) covers baking powder in commercially acceptable containers, suitable for use by the Federal Government.
Salient characteristics.
Baking powder shall be manufactured from clean, white, free-flowing, highly purified, food grade materials and shall be comprised of acid-reacting materials, sodium bicarbonate, and cornstarch. Edible modifiers such as calcium lactate or calcium silicate may be used. Materials sbal.1meet the standards prescribed by the Food Chemicals Codex.
The acid-reacting components shall be mixtures of calcined sodium aluminum sulfate and calcium phosphate, monobasic. The available carbon dioxide shall be not less than 12 percent, by weight of the baking powder. The baking powder may contain Food Chemicals Codex purity calcium carbonate or calcium sulphate. If calcium sulfate is used, it shall not replace more than 35 percent, by weight, of the cornstarch filler.
Physical properties.
One hundred percent of the baking powder shall pass through a U.S. Standard No. 80 sieve when the following procedure is used. Place a 25 gram sample in a U.S. No. 80 sieve, attach cover and catch pan. With one hand hold the sieve at an approximate 30 degree angle from horizontal so that the upper edge of the tilted pan is towards the other hand. Shake by striking the side of the sieve with short sharp strokes. Strike at the rate of about 150 times per minute. After each 25 strokes, turn the sieve assembly 1/6 of a revolution in the same direction. Continue shaking for 2 minutes. Weigh and calculate the percentage of material which remains on the sieve. (Note: A fine brush may be used to break up any sieve openings that contain product.)
Analytical requirements.
Chemical analysis shall be made in accordance with the following method in the Official Methods of Analysis of the Association of the Official Analytical Chemists.
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
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