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preamble_948

2.1.4.1. When the class of a substance is uncertain and it is being carried for further testing, a provisional class, proper shipping name and UN number shall be assigned on the basis of the consignor's knowledge of the substance and application of:

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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.