38 BULLETIX 373^ V. S. DEPAETMEXT OF AGEICULTUEE. 



niissible uuder the specifications, tlie test shall be disqualified and another 

 made. 



Item 12. The scales. — The scales must have a capacity of not less than 300 

 pounds and must be sensitive to one-half of an ounce and must be tested by a 

 standard test Tveight at intervals of not less than every 10 tests. 



Item 13. The results. — The loss shall be calculated in percentage of the 

 initial weight of the brick composing the charge. In weighing the rattled brick 

 any piece weighing less than 1 pound shall be rejected. 



Item 14. Tlie records. — A complete and continuous record shall be kept of 

 the operation of all rattlers working under these specifications. This record 

 shall contain the following data concerning each test made : 



1. The name of the person, firm, or corporation furnishing each sample tested. 



2. The name of the maker of the brick represented in each sample tested. 



3. The name of the street or contract which the sample represented. 



4. The brands or marks upon the bricks by which they were identified. 



5. The number of bricks furnished. 



6. The date on which they were received for test. 



7. The date on which they were tested. 



8. The drying treatment given before testing, if any. 



9. The length, breadth, and thickness of the bricks. 



10. The collective weight of the 10 large spherical shot used in making the 

 test at the time of their last standardization. 



11. The number and collective weight of the small spherical shot used in 

 making the test at the time of their last standardization. 



12. The total weight of the shot charge after its last standardization. 



13. Certificate of the operator that he examined the condition of the machine 

 as to staves, liners, and any other parts affecting the barrel and found them 

 right at the beginning of the test. 



14. Certificate of the operator of the number of charges tested since the last 

 standardization of shot charge. 



15. The time of the beginning and ending of each test and the number of 

 revolutions made by the barrel during the test as shown by the indicator. 



16. Certificate of the operator as to number of stops and starts made in each 

 test. 



17. The initial collective weight of the 10 brick composing the charge and 

 their collective weight after rattling. 



18. The loss calculated in per cents of the initial weight : and the calculation 

 itself. 



19. The number of broken brick and remarks upon the portions ^^•hich were 

 included in the final weighing. 



20. General remarks upon the test and any irregularities occurring in its 

 execution. 



21. The date upon which the test was made. 



22. The location of the rattler and name of the owner. 



23. The certificate of the operator that the test was made under specifications 

 of the American Society for Testing Materials and that the record is a true 

 record. 



24. The signature of the operator or person responsible for the test. 



25. The serial number of the test. 



In event of more than one copy of the record of any test being required, they 

 may be furnished on separate sheets and marked duplicates, but the original 

 record shall always be preserved intact and complete. 



