RULES AND REGULATIONS 



Sampling. 



(a) In order to secure a representative sample, equal portions 

 shall be taken from evenly distributed parts of the quantity of seed to 

 be sampled. Access shall be had to all parts of that quantity. 



(b) For free-flowing seed in bags or bulk, a probe or trier 

 shall be used. For small free-flowing seed in bags, a probe or trier 

 long enough to sample all portions of the bag should be used. 



(c) Non-free-flowing seed, such as certain grass seed, unclean- 

 ed seed, or screenings, difficult to sample with a probe or trier, shall 

 be sampled by thrusting the hand into the bulk and withdrawing 

 representative portions. 



(d) The portions shall be combined into a composite sample or 

 samples. 



(e) As the seed is sampled, each portion shall be examined, and, 

 whenever there appears to be a lack of uniformity, additional samples 

 shall be taken to show such lack of uniformity as may exist. 



Bulk seeds shall be sampled by inserting a long probe or 

 thrusting the hand into the bulk as circumstances require in several 

 uniformly distributed parts of the quantity being sampled. 



Bags. (1) In quantities of five bags or less, each bag shall 

 be sampled. 



(2) In quantities of more than five bags, at least every fifth bag but 

 not less than five bags shall be sampled. Samples shall be drawn from 

 unopened bags except under circumstances where the identity of the 

 seed has been preserved. 



In sampling packet seeds, entire unopened packets shall 

 be taken. 



Size of sample. The following are minimum weights of 

 samples of seed to be submitted for analysis, test, or examination: 



(1) Two ounces of grass seed not otherwise mentioned, white or 

 alsike clover, or seeds not larger than these. 



(2) Five ounces of red or crimson clover, alfalfa, ryegrass, brome- 

 grasses, millet, flax, rape, or seeds of similar size. 



(3) Two pounds of cereals, vetches, or seeds of similar or larger size. 



(4) Two quarts of screenings. 



Analysis. 



The New Hampshire seed laboratory will be guided in mak- 

 ing purity and germination tests by the rules and regulations prescrib- 

 ed under the Federal Seed Act. 



Tolerance. 



Owing to the natural variation between tests, the following 

 tolerances shall be allowed between the percentages found by analysis, 

 test or examination and the percentages stated on the tag accompany- 

 ing the seed : 



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