This SAE Aerospace Standard (AS) covers open box end flare nut wrenches. These wrenches are designed for nondistorting usage by transmitting torque to tube fittings without bearing on the apex of the fitting wrenching surfaces.
Amendment 1 - Specification for radio disturbance and immunity measuring apparatus and methods - Part 4-1: Uncertainties, statistics and limit modelling - Uncertainties in standardized EMC tests