44 BULLETIN 555, U. S. DEPARTMENT OF AGRICULTURE. 
(Name and location of laboratory:) 
Report on Sample of Vitrified Paving Brick. 
(Date reported.) 
Laboratory No 
Trade name 
Identification marks 
Submitted by Title Address. 
Sampled , 191__ Received 
Sampled from 
Quantity represented 
Manufactured by 
Location used or to be used 
Examined for 
., 191. 
., 191__ 
TEST RESULTS. 
General data. 
Average dimensions, length Width. 
Drying treatment 
Depth. 
Standardization data. 
Weight 
of charge 
(after 
standard- 
ization. 
Number of fresh stave liners. 
Repairs affecting barrel. 
10 large spheres 
small spheres. 
Total 
Number of charges tested since last inspection, 
Running data. 
Time readings. 
Revolu- 
tion 
counter 
readings. 
R unning 
notes, 
stops, 
etc. 
Beginning of test. 
Final reading 
Hours. 
Minutes. 
Seconds. 
Initial weight of 10 bricks. . . 
Final weight of 10 bricks. . . . 
Loss of weight 
Loss of weight, per cent 
Number of bricks broken in 
test. 
Remarks ; 
Maximum variation in per cent loss. 
Respectfully submitted, 
""(Title) 
