80, 85 and 90 lb. rail 18 ft.
100 lb. rail 20 ft.
"The test pieces which do not break under the first drop shall be
nicked and tested to destruction.
"(_b_) (It is proposed to prescribe, under this paragraph, the
requirements in regard to deflection, fixing maximum and minimum
limits, as soon as proper deflection limits have been decided upon.)
[Sidenote: Tests.]
"13. (A) Two pieces shall be tested from each heat of steel. If
either of these test pieces breaks, a third piece shall be tested.
If two of the test pieces break without showing physical defect, all
rails of the heat will be rejected absolutely. If two of the test
pieces do not break, all rails of the heat will be accepted as No. 1
or No. 2 classification (according as the deflection is less or
more, respectively, than the prescribed limit[A]).
"(B) If, however, any test piece broken under test A shows physical
defect, the top rail from each ingot of that heat shall be rejected.
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