A-A-20165C
well-mixed sample in the prepared Waring Blender or similar mill for one minute. Place the ground material in a small, dry, tightly-closed container for at least ½ hour. Pass the ground material over a U.S. Standard No. 20 sieve nested on a U.S. Standard No. 40 sieve. That portion which passes through the U.S. Standard No. 20 mesh screen but not the U.S. Standard No. 40 mesh screen is to be analyzed and shall be weighed immediately or placed in a small, dry container with a tightly closed lid until ready for analysis (a one-half pint Mason jar is satisfactory).
5.3 Analytical testing. When specified in the solicitation, contract, or purchase order, the analyses shall be in accordance with the following methods from the Official Methods of Analysis of the AOAC International:
Test Method
Moisture 1/ (loss on drying) 934.06
Fat 933.05 or 985.15
1/ Place the sample dishes with cocked lids in the vacuum-oven and dry for 6 hours at 70°C (158oF) under a pressure of not more than 100 mm of mercury.
5.4 Test results. The test results for moisture and fat shall be reported to the nearest 0.1 percent. Any result not conforming to the finished product requirements shall be cause for rejection of the lot.
5.5. Pellet size. The pellet size of the dehydrated potato-based mix shall be determined by sieve testing. The contents of one primary container, approximately 100 g ± 0.1 g at a time, shall be mechanically shaken (Rotap, W.S. Tyler, or equivalent) for 30 seconds without tap on a U.S. Standard No. 6 sieve nested over a U.S. Standard No. 8 sieve. The product will meet the requirements specified in Section 4.2.4. The pellet size shall be reported to the nearest 1.0 percent.
5.5.1 Screening procedure. Open a can of dehydrated potato-based mix and pour it through a splitter, or open a bag and remove approximately 454 grams (1 pound) of product. Weigh out a
100 g ± 0.1 g sample on a paper plate. Assemble sieves in the following order from top to bottom: U.S. Standard No. 6 sieve, U.S. Standard No. 8 sieve, three blank sieves larger than a U.S. Standard No. 6 sieve, and a pan. Pour the weighed sample onto the top sieve. Place the nested sieves in a Rotap, W.S. Tyler, or equivalent, and shake for only 30 seconds with the tapper raised. Remove the sieves from the Rotap, W.S. Tyler, or equivalent, separate and weigh the product on the U.S. Standard No. 6 and U.S. Standard No. 8 sieves and in the pan.
5.6 Testing in dispenser equipment with internal rehydrating device. Follow Series 500 dispenser machine operating, cleaning, and charging instructions. Open a can or bag of potato mix product, pour the contents into the dispenser machine hopper. Follow the dispenser machine
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