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Standard [CURRENT]
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This standard specifies the relevant requirements for sealing caps with the dimensions 10 mm up to and including 100 mm in diameter. The standard describes a shape for sizes of up to and including 50 mm in diameter and a shape for sizes of more than 50 mm in diameter. This standard is a dimensional and product standard. It specifies dimensions and technical delivery conditions for sealing expanding caps. The Committee responsible for this standard is NA 067-00-09-02 AK "Scheiben und Ringe" ("Washers and rings") at DIN.
This document replaces DIN 442:1970-11 .