Tag: ASTM E74 primary standard|ASTM E74 standards|deadweight primary standards|primary standards|secondary standards|what is a primary standard|What is Class A|what is Class AA
Primary Force Standards (As Defined per ASTM E74) Morehouse Deadweight Machine ASTM E74 Standard Practice of Calibration of Force-Measuring Instruments for Verifying the Force Indication of Testing Machines (section 3.1.2) defines a primary force standard as a deadweight force applied directly without intervening mechanisms such as levers, hydraulic multipliers, or the like, whose mass has […]
