BULLETIN 882, U. S. DEPARTMENT OF AGRICULTURE. 
6. There must be at least 80 threads and not more than 84 threads per inch in 
both warp and tilling. 
7. The weave shall be a plain weave. 
8. The fabric must be uniform in structure and free from manufacturing 
imperfections. 
9. The fabric under normal moisture conditions must weigh not more than 
4.5 ounces per square yard. 
10. The width must be 36 inches. 
Selection of Test Specimens : 
11. Samples for tests shall be taken from at least five (5) bolts in each warp 
woven. 
1 
1 
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V 
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5! 
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A 
a 
c 
DE 
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Fig. 1. — Sketch shewing the location of the 10 test specimens (lettered A to J) to be cut 
from the sample. 
12. The sample taken from a bolt shall be one (1) yard long and the full 
width of the bolt ; it shall be cut from the fabric at a point ten (10) yards from 
the end of the bolt. 
13. Test specimens for tensile tests, 12 inches long and 1^ inches wide, shall be 
cut from each sample taken as shown in figure 1. Threads shall be pulled out 
from the sides of the test specimens until a width of one (1) inch of woven 
fabric remains. 
Specification Xo. 16M.' f -A. 
Tests : 
14. Tensile test. The tensile test specimens, prepared in accordance with 
paragraphs 11, 12, and 13, shall be exposed for at least two (2) hours in an 
