BS EN 3086:2019 pdf free.Aerospace series – Hose assemblies -Designation limited to 15 digits.
BS EN 3086 1 Scope .This European standard specifies the designation method for hose assemblies within 15 digits. 2 Normative references There are no normative references in this document. 3 Terms and definitions No terms and definitions are listed in this document. ISO and IEC maintain terminological databases for use in standardization at the following addresses:
一ISO Online browsing platform: available at http:/ /www.iso.org/ obp 一IEC Electropedia: available at http:/ /www.electropedia.org/  Size codes  The size codes shall be used in the hose assembly part number as follows in the Table 1.Hose assembly lengths shall be coded in whole millimetres. For hose assemblies, the length code shall always be three digits long, using zeros when necessary. For hose assemblies’ length≥1 m, the length code shall be defined with a prefix letter, as shown in Table 2. Double elbow hose assemblies or other hose assemblies requiring end coupling orientation shall have a three digit orientation code, given in whole degrees, using zeros when necessary. The angle is determined with anti-clockwise orientation from the datum position given by the end coupling nearest to the observer as defined in Figure 1. EXAMPLE an angle of 45°: Code = 045.BS EN 3086 pdf download.