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UN 1790 HYDROFLUORIC ACID: class, labels, packing group and ADR tunnel code

UN 1790 in the dangerous goods lists of ADR 2025 (road) and the IMDG Code (sea). The proper shipping name, class and packing group come from your safety data sheet, section 14: pick the entry that matches it.

Checked against the sources on 27 October 2026

The line on the transport document

ADR 5.4.1.1.1 asks for the UN number, the proper shipping name, the labels (or the class), the packing group and the tunnel code, in this order and with nothing in between. For each entry:

  • UN 1790 HYDROFLUORIC ACID, 8 (6.1), I, (C/D)
  • UN 1790 HYDROFLUORIC ACID, 8 (6.1), II, (E)
  • A special provision in Column (6) can change the labels; read the special provisions in the table below before you print.
  • The tunnel code is needed only when the route passes a tunnel with restrictions; "(─)" is written where Table A gives none.
  • Quantity, packages, consignor and consignee complete the document (5.4.1.1.1 (e) to (h)).

Road: ADR 2025, Table A

Proper shipping name and descriptionClassClassification codePacking groupLabelsSpecial provisionsLimited quantityExcepted quantityTransport categoryTunnel codeHazard number
HYDROFLUORIC ACID with more than 85 % hydrogen fluoride8CT1I8, 6.1640I0E01C/D886
HYDROFLUORIC ACID with more than 60 % but not more than 85 % hydrogen fluoride8CT1I8, 6.1640J0E01C/D886
HYDROFLUORIC ACID with not more than 60 % hydrogen fluoride8CT1II8, 6.1none1 LE22E86

Sea: IMDG Code, Amendment 42-24

Proper shipping name and descriptionClassSubsidiary hazardPacking groupMarine pollutantLimited quantityExcepted quantityEmSStowage category
HYDROFLUORIC ACID with more than 60% hydrogen fluoride86.1Inone0E0F-A, S-BD
HYDROFLUORIC ACID with not more than 60% hydrogen fluoride86.1IInone1 LE2F-A, S-BD

Labels, safety data sheet and the full list

This page does not classify a substance: the UN number and packing group come from the manufacturer's classification. Air transport (IATA) is not covered, nor are segregation, stowage rules beyond the category, or national exemptions. Data: ADR 2025 and IMDG Code, Amendment 42-24, downloaded from BAM on 2026-10-27. Changes: selected columns, headings and explanations added; the values are as BAM publishes them.