This document provides information relating to the sizes and materials of tubing for use in aerospace hydraulic pressure and return and suction lines. For pressure lines, the requirements apply to the pressure and temperature ranges covered by pressure class D, E and J and temperature type 13 and type 20 as specified in ISO 6771.
ISO 8575:2016 Referenced Document
ISO 2964:1985 Aerospace; Tubing; Outside diameters and thicknesses; Metric dimensions
ISO 6771:2007 Aerospace - Fluid systems and components - Pressure and temperature classifications
ISO 8574:2004 Aerospace - Hydraulic system tubing - Qualification tests for bent tubes