Covers static calibration of force-measuring systems. It includes grading requirements and procedures for calibration of machines using calibrating devices. Methods of force calibration using weights, calibrating levers and elastic proving devices are described. Details are specified for the assessment of readability, repeatability, and accuracy of indicated force, the assignment of a grade or grades, and the issue of a report. Notes on the calibration of multirange machines and on the response of the force-measuring system of testing machines, and values of acceleration due to gravity at selected localities in Australia are given in appendices.