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preamble_5275

6.7.2.4.7. When in the applicable portable tank instruction in 4.2.4.2.6, a minimum thickness of 8 mm or 10 mm is specified, it shall be noted that these thicknesses are based on the properties of the reference steel and a shell diameter of 1,80 m. When a metal other than mild steel (see 6.7.2.1) is used or the shell has a diameter of more than 1,80 m, the thickness shall be determined using the following formula:

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Source: EUR-Lex (Cellar) · retrieved 2026-10-31 · Text as adopted (Official Journal); later amendments are not incorporated in this text.