APPENDIX III 505 



Milo, White Durrn. Durra, Feterita, Darso, Freed Sorgo, Brown Kaoliang, 

 Schroek Kafir, Shallu, or ]\Iixed, as the case may be, according to the 

 respective requirements thereof as specified in these grades, except that 

 in the case of Mixed the requirements as to the maximum percentage 

 of other grain sorghums shall be disregarded. 



Grades for Mixed Grain Sorghums. Mixed grain sorghums shall be 

 graded according to each of the grade requirements common to the class 

 of the grain sorghums which predominates over each other class in the 

 mixture. The grade designation of " Mixed Grain Sorghums " shall include, 

 successively, the number of the grade or the words " Sample Grade," the 

 word " Mixed " and, in the order of its predominance, the name and 

 approximate percentage of each of at least two classes. 



Basis of Determinations. Each determination of general appearance, 

 temperature, odor, smut, moisture, test weight per bushel, "foreign mate- 

 rial and cracked kernels," " sand, dirt, and finely broken kernels," and 

 insects injurious to stored grain shall be upon the basis of the lot of grain 

 as a whole, and all other determinations shall be on the basis of the grain 

 when free from foreign material and cracked kernels. 



Percentages. Percentages, except in the case of moisture, shall be 

 percentages ascertained by weight. 



Percentage of Moisture. Percentage of moisture in grain sorghums 

 shall be that ascertained by the moisture tester and the method of use 

 therefore for kafir, as described in Circular No. 72, and supplement thereto, 

 issued by the U. S. Department of Agriculture, Bureau of Plant Industry, 

 or ascertained by any device and method giving equivalent results. 



Test Weight Per Bushel. The test weight per bushel shall be the 

 test weight per Winchester bushel, as determined by the testing apparatus 

 and the method of use thereof as described in Bulletin No. 472, dated 

 October 30, 1916, issued by the U. S. Department of Agriculture, or as 

 determined by any device and method giving equivalent results. 



Other Grains. Other grains shall include wheat, non-grain sorghums, 

 corn, oats, barley, rye, emmer, spelt, einkorn, rice, cultivated buckwheat, 

 and flaxseed, only. 



Non-Grain Sorghums. Non-grain sorghums, which include the grain 

 or sorgo (commonly called "cane seed"), broomcorn, Sudan grass, and 

 Johnson grass, and hybrids between any combination of the groups of the 

 non-grain sorghums. 



Foreign Material and Cracked Kernels. Foreign material and 

 cracked kernels shall be grains and pieces of grains of grain sorghums, and 

 all matter other than grain sorghums which will pass through a No. 8 

 sieve, and all foreign material, except other grains, remaining on such 

 sieve after screening. 



Sand, Dirt, and Finely Broken Kernels. Sand, dirt, and finely broken 

 kernels shall be finely broken kernels, sand, and all other material which 

 will pass through a No. 2y 2 sieve, and all inert matter remaining on either 

 the No. 2% or No. S sieve after screening. 



No. 2^ Sieve. A metal sieve perforated with round holes 2% sixty- 

 fourths inch in diameter. 



No. 8 Sieve. A metal sieve perforated with triangular perforations 

 8 sixty-fourths inch long on each side of perforation. 



Damaged Kernels. Damaged kernels shall be all grains and pieces 

 of grain sorghums which are heat damaged, sprouted, frosted, badly ground 

 damaged, mouldy, or otherwise distinctly damaged. 



Heat-Damaged Kernels. Heat-damaged kernels shall be grains and 

 pieces of grains of grain sorghums or other grains which have been dis- 



