This standard specifies the technical requirements, calibration conditions, calibration items, calibration methods, calibration result processing and recalibration time intervals of shale expansion testers (hereinafter referred to as shale expansion testers). This standard applies to the calibration of newly produced, in-use and repaired shale dilatometers.
SY/T 6866-2012 history
2012SY/T 6866-2012 Calibration method of shale swelling tester