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# DSTR - Dry Strength (Square Bars) Test

Formula for derice pounds per square inch tensile strength:

(3 * F * S) / (2 * W * D * D)

Where F = Force in lbs necessary to break the bar
S = Span in inches
W = Width of bar at break in inches
D = Depth of bar at break in inches

### Fired strength tester

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Round or square fired bars are subject to a force that tests their tensile strength. The strength can be calculated from the force and the dimensions of the cross section where the break occurred.

## Variables

FOR - Force (V)

WID - Width (V)

DEP - Depth (V)

SPAN - Span (V)

TMP - Firing Temperature (V)

VAL - Value (V)