这些指南规定了疲劳试验机的校准，包括可能影响校准的特殊附件，例如夹具。ISO 4965专门涉及轴向载荷试验机，其中对称试样承受波动和反向力。适用于制造商对新试验机的校准和在用机器的验证。

These guidelines lay down calibration of fatigue testing machine including special attachments, for example grips, which may affect the calibration. ISO 4965 deals exclusively with axial load machines in which symmetrical test pieces are subjected to fluctuating and reversed forces. Applies both to the calibration of new testing machines by the manufacturer and to the verification of machines in service.