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 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, uncleaned 

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

 sampled by thrusting the hand into the bulk and withdrawing repre- 

 sentative 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 making 

 purity and germination tests by the rules and regulations prescribed 

 under the Federal Seed Act. 



Tolerance 



Owing to the natural variation between tests, the following toler- 

 ances shall be allowed between the percentages found by analysis, test 

 or examination and the percentages stated on the tag accompanying the 

 seed: 



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