BS EN 3572:2021 pdf download.Aerospace series — PTFE flexible hose assembly with convoluted inner tube of a nominal pressure up to 6 800 kPa and 8°30′ fitting in titanium — Product standard.
1 Scope This document specifies the dimensions of a hose assembly which is in accordance with ISO 7313. The hose assembly couples to the fittings specified in EN 3274, which are made out of titanium. The hose is protected either by means of an anti-abrasive, anti-shock and anti-projection sleeve or by means of a fire resistant or fire proof sleeve in accordance with ISO 2685. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2424, Aerospace series — Marking of aerospace products ISO 7313, Aircraft — High temperature convoluted hose assemblies in polytetrafluoroethylene (PTFE) 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:   ISO Online browsing platform: available at https://www.iso.org/obp/ui   IEC Electropedia: available at http://www.electropedia.org/ 4 Length of hose assembly The length of the hose assembly is measured starting from the theoretical sealing point of the fitting specified in the relevant standard (see Figure 1). Example for a length of 680 mm use code “FJ”.
10 Marking According to EN 2424, style G. 11 Technical specification According to ISO 7313. 12 Qualification The manufacturer’s operations shall be an approved production organization for aerospace products and shall demonstrate that it has implemented and is able to maintain a quality management system (e.g. according to EN 9100 or another in aerospace accepted and established quality management system). The qualification procedure for aerospace standard products (e.g. according to EN 9133 or another in aerospace accepted and established qualification procedure) shall be used and documented according to the specified tests if not otherwise agreed between customer and supplier.BS EN 3572 pdf download.