ISO 12821:2019 pdf free
ISO 12821:2019 pdf free.Glass packaging一26 H 180 crown finish一Dimensions
This document specifies the dimensions of the 26 mm tall crown finish for glass bottles containing beverages. The tall crown finish is designed to use a metal crown cap (see e.g. EN 17177).
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.
ISO 9058, Glass containers一Standard tolerances for bottles
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 https://www.iso.org/obp
一IEC Electropedia: available at htt://www.electropedia.org/
4 Dimensions
The design and dimensions of the finish shall be as shown in Figures 1, 2, 3, 4, and 5.
Details which are not specified shall be selected in accordance with the application.
The general tolerances shall be in accordance with ISO 9058.
The detail P figures the dimensions relating to the contact zone between the finish and the corrugated skirt of the cap when crimped, known as the “P point”.
The contact between the crown cap liner compound and the internal mould parting line of the finish should be avoided. The sealing surface should be smooth and free of any defects.
The contact between the crown cap liner compound and the internal mould parting line of the glass finish should be avoided. The glass sealing surface should be smooth and free of any defects.
a Mould parting line.
b Flat.
c Sealing surface.
d Fora non-returnable (“one way”) bottle, this diameter may be s18,5 mm, subject to written agreement一through the bottler一between the three involved parties (bottler, glass manufacturer, and crown cap manufacturer).ISO 12821 pdf free download.
