RULES GOVERNING GRADES 283 



GENERAL RULES. 



(1) The corn in grades No. 1 to No. .S, inclusive, must be sweet. 



(2) White corn, all grades, shall be at least 98 per cent white. 



(3) Yellow corn, all grades, shall be at least 95 per cent yellow. 



(4) Mixed corn, all grades, shall include corn of various colors 

 not coming within the limits for color as provided for under white 

 and yellow corn. 



(5) In addition to the various limits indicated. No. 6 corn may be 

 musty, sour, and may also include that of inferior quality, such as im- 

 mature and badly blistered corn. 



(6) All corn that does not meet the requirements of either of the 

 six numerical grades by reason of an excessive percentage of moisture, 

 damaged kernels, foreign matter, or "cracked" corn, or corn that is 

 hot, heat damaged, fire burnt, infested with live weevils, or otherwise 

 of distinctly low quality shall be classed as sample grade. 



(7) In No. 6 and sample grades, the reasons for so grading shall 

 be stated on the inspector's certificate. 



(8) Finely broken corn shall include all broken particles of corn 

 that will pass through a metal sieve perforated with round holes nine 

 sixty-fourths of an inch in diameter. 



(9) "Cracked" corn shall include all coarsely broken pieces of 

 kernels that will pass through a metal sieve perforated with round 

 holes one-quarter of an inch in diameter, except that the finely broken 

 corn, as provided for under rule No. 8, shall not be considered as 

 "cracked" corn. 



(10) It is understood that the damaged corn, the foreign material 

 (including dirt, pieces of cob, finely broken corn, other grains, etc.) 

 and the coarsely broken or "cracked" corn, as provided for under the 

 various grades, shall be such as occur naturally in corn when handled 

 under good commercial conditions. 



(11) Moisture percentages, as provided for in these grade speci- 

 fications, shall conform to results obtained by the standard method 

 and tester. 



