Flyg- och rymdteknik

1.1 In scope This document defines a Recommended Practice for Product Structure validation. The objective is to validate the product structure of data ingested, extracted or re-used by the archive. This document defines a method to uniquely identify each node in the product structure and to uniquely define the structure of each assembly node. 1.2 Out of scope This document will not provide validation properties for documents; CAD or other.

This document specifies the characteristics of tab washers, in heat resisting steel, passivated, for maximum operating temperature 650 °C, for aerospace applications. Their use under hexagon head bolts is conditional upon the user accepting the possibility of some interference.

The following is in scope of this document: - business specification for long term archiving and retrieval of CAD 3D explicit geometry (see Clause 5); - essential information of CAD 3D explicit geometry (solids, curves, surfaces, and points) to be preserved (see Clause 6); - data structures detailing the main fundamentals and concepts of CAD 3D explicit geometry (see Clause 7); - verification rules to check CAD 3D explicit geometry for consistency and data quality (see Clause 8); - validation rules to be stored with the CAD 3D explicit geometry in the archive to check essential characteristics after retrieval (see Clause 9). NOTE 1 This document includes the geometrical external shape resulting from CAD 3D domain elements (e.g. 3D Structural components, 3D Tubing, 3D electrical harness, 3D composite, etc.). The following is outside the scope of this document: - the formal definition of validation and verification rules to check 3D explicit geometry for consistency and data quality using a machine-readable syntax; - implicit or parametric geometry; - Geometric Dimensioning and Tolerancing (GD&T), Product and Manufacturing Information (PMI); N0TE 2 For long term archiving of the GD&T and PMI see EN 9300 120, EN 9300 121 and EN 9300 125. - assembly structures and PDM product structures; NOTE 3 For long term archiving of assembly structure see EN 9300 115 and for product structure see EN 9300 2xx series. - model styling and organization of explicit geometry.

This document specifies a method for measuring the voltage drop under specified current in terminal lugs and in-line splices. It is used together with EN 2591-100.

This document specifies a method for ageing terminal lugs and in-line splices by temperature and current cycling. It is used together with EN 2591-100.

This document specifies the requirements for furnace, torch and induction brazing using silver alloys. This document is applicable to brazing of metallic components, in conjunction with the design/engineering authority’s requirements.

This document specifies the general characteristics, the conditions for qualification, acceptance and quality assurance, as well as the test programs and groups for threaded ring coupling circular connectors, fire resistant, intended for use in a temperature range from −65 °C to 175 °C continuous or 200 °C continuous according to the classes.

This document specifies the characteristics of screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in alloy steel, cadmium plated. Classification: 1 100 MPa1/235 °C2.