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ETA-21_0054_mit_aBG_incl._Cover.pdf
supplied by Macalloy Ltd. The load measuring system employed, shall have an appropriate calibration certificate, not older than 6 months. Macalloy jacks are calibrated against calibrated and certified load cells prior to being despatched from Macalloy premises. The load cells are calibrated against a [...] bearing material, as applicable, have gained the required strength. It is recommended that the appropriate test certificates are attached to the stressing records. (2) The test certificates for the bars to be stressed are available. (3) The space for the jack must be sufficient. (4) The element or structure [...] rectified by the use of suitable tapered plates or by re-bedding the plates. (8) A valid and signed jack calibration certificate must be supplied before the jack is used. The certificate must relate the actual force the jack exerts to the indicated hydraulic pressure or force. This calibration requirement[...]