BS EN 17220:2019 pdf download

BS EN 17220:2019 pdf download.Packaging – Flexible aluminium tubes – Tube nozzles
1 Scope
This document is applicable to flexible aluminium tubes.
This document defines the dimensions of the tube nozzle including orifice and thread.
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 12374:2009, Packaging一Flexible tubes一Terminology
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12374:2009 and the following apply.
NOTE See also Figure 1.
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3.3 tube nozzle shape C
tube nozzle shape with applied plastics nozzle, threaded
3.4 tube nozzle shape D
tube nozzle with applied plastics nozzle, threaded cannula
3.5 tube nozzle shape E
tube nozzle with membrane
4 Dimensions
The tube nozzle may not be equivalent to the figure; only the indicated dimensions given in the following clauses shall be considered.
5 Tube nozzle shapes
5.1 General
This clause defines the sizes for the different shapes of nozzles and the relevant threads of flexible aluminium tubes.
5.2 Shape A
The metrical outer threads for the dimensions of the tube nozzles shape A with smooth shoulders as shown in Figure 2 as an example, are specified in Table 1.