Prior to handling test materials, performing equipment setups, and/or conducting this method, testers are required to read “SAFETY AND HEALTH ” in Section F of this method. It is the responsibility of the user of this method to consult and use appropriate safety and health practices and determine the applicability of regulatory limitations before any testing is performed. A. SCOPE C. PRINCIPLE OF OPERATION This method describes the procedures for operating and calibrating the electronically controlled kneading compactor used for fabricating test specimens of treated and untreated soils, untreated aggregates, and bituminous mixtures. All compactors shall be calibrated immediately after repairs (this includes new or replacement parts, or mechanical or electrical adjustments) that may in any way affect the characteristics of the compacted specimen or the values displayed. Calibration is required immediately after a compactor is relocated, or whenever there is a reason to doubt the accuracy of the indicated load, regardless of the time interval since the last calibration. B. APPARATUS 1. A mechanical compactor and accessories. Se
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