NOTE 8—Because of the difficulty of securing the same tension in all
the filaments and because of slippage in the clamps, erratic results are
Configuration B, Knot-Breaking Force—Handle specimens
in a manner to avoid any change in twist or any stretching
of the specimen, or both (Note 8). Place one end of the
specimen in one clamp of the machine, tie a single overhand
knot near the middle of the specimen, place the other end in the
second clamp, and tighten the clamp. Take care that the knot is
always tied in the direction specified (see Annex A1), as the
breaking force may be different depending on whether the knot
is made with or against the direction of twist