ADR lookup / UN 1791

UN 1791 – HYPOCHLORITE SOLUTION

ADR details for UN 1791 from ADR 2025, Table A: class 8, hazard identification number 80 in the upper half of the orange plate. There are 2 entries for this UN number, all listed below.

UN 1791

ADR (road)

  • 8

Entry 1

Classification
Name and descriptionHYPOCHLORITE SOLUTION
Class8
Classification codeC9
Packing groupII
Labels8
Hazard identification number80
Limited and excepted quantities
Limited quantity (LQ)1 L
Excepted quantity (EQ)E2
Packaging
Packing instructions (8)P001; IBC02
Special packing provisions (9a)PP10; B5
Mixed packing provisions (9b)MP15
Tanks
Portable tanks: instructions (10)T7
Portable tanks: special provisions (11)TP2; TP24
Tank code (12)L4BV(+)
Special provisions for tanks (13)TU42; TE11
Vehicle for tank carriage (14)AT
Carriage
Transport category2
Tunnel restriction code(E)
Environment
Environmentally hazardouspossibly, to be classified by the consignor
Special provisions
Special provisions (6)521
SP 521

Solid chlorites and hypochlorites are substances of Class 5.1.

  • 8

Entry 2

Classification
Name and descriptionHYPOCHLORITE SOLUTION
Class8
Classification codeC9
Packing groupIII
Labels8
Hazard identification number80
Limited and excepted quantities
Limited quantity (LQ)5 L
Excepted quantity (EQ)E1
Packaging
Packing instructions (8)P001; IBC02; LP01; R001
Special packing provisions (9a)B5
Mixed packing provisions (9b)MP19
Tanks
Portable tanks: instructions (10)T4
Portable tanks: special provisions (11)TP2; TP24
Tank code (12)L4BV(+)
Special provisions for tanks (13)TU42; TE11
Vehicle for tank carriage (14)AT
Carriage
Transport category3
Tunnel restriction code(E)
Environment
Environmentally hazardouspossibly, to be classified by the consignor
Special provisions
Special provisions (6)521
SP 521

Solid chlorites and hypochlorites are substances of Class 5.1.

Source: BAM – Datenbank GEFAHRGUT, dl-de/by-2-0. ADR 2025 (valid from 1 Jan 2025), BAM status 4 Nov 2024 (modified)

RID (rail)

Entry 1
Name and descriptionHYPOCHLORITE SOLUTION
Class8
Classification codeC9
Packing groupII
Labels8
Hazard identification number80
Special provisions (6)521
Limited quantity (LQ)1 L
Excepted quantity (EQ)E2
Packing instructions (8)P001; IBC02
Special packing provisions (9a)PP10; B5
Mixed packing provisions (9b)MP15
Portable tanks: instructions (10)T7
Portable tanks: special provisions (11)TP2; TP24
Tank code (12)L4BV(+)
Special provisions for tanks (13)TU42; TE11
Transport category2
Express parcelsCE6
SP 521

Solid chlorites and hypochlorites are substances of Class 5.1.

Entry 2
Name and descriptionHYPOCHLORITE SOLUTION
Class8
Classification codeC9
Packing groupIII
Labels8
Hazard identification number80
Special provisions (6)521
Limited quantity (LQ)5 L
Excepted quantity (EQ)E1
Packing instructions (8)P001; IBC02; LP01; R001
Special packing provisions (9a)B5
Mixed packing provisions (9b)MP19
Portable tanks: instructions (10)T4
Portable tanks: special provisions (11)TP2; TP24
Tank code (12)L4BV(+)
Special provisions for tanks (13)TU42; TE11
Transport category3
Express parcelsCE8
SP 521

Solid chlorites and hypochlorites are substances of Class 5.1.

Source: BAM – Datenbank GEFAHRGUT, dl-de/by-2-0. RID 2025, status 4 Nov 2024 (modified)

ADN (inland waterways)

Entry 1
Name and descriptionHYPOCHLORITE SOLUTION
Class8
Classification codeC9
Packing groupII
Labels8
Special provisions (6)521
Limited quantity (LQ)1 L
Excepted quantity (EQ)E2
Equipment requiredPP; EP
Number of cones/blue lights0
SP 521

Solid chlorites and hypochlorites are substances of Class 5.1.

Entry 2
Name and descriptionHYPOCHLORITE SOLUTION
Class8
Classification codeC9
Packing groupIII
Labels8
Special provisions (6)521
Limited quantity (LQ)5 L
Excepted quantity (EQ)E1
Equipment requiredPP; EP
Number of cones/blue lights0
SP 521

Solid chlorites and hypochlorites are substances of Class 5.1.

Source: BAM – Datenbank GEFAHRGUT, dl-de/by-2-0. ADN 2025, status 4 Nov 2024 (modified)

IMDG (sea)

Entry 1
Name and descriptionHYPOCHLORITE SOLUTION
Class8
Packing groupII
Marine pollutantP
Special provisions (6)274; 900
Limited quantity (LQ)1 L
Excepted quantity (EQ)E2
Packing instructions (8)P001
Special packing provisions (9a)PP10
IBC instructions and provisionsIBC02; B5
Portable tanks: instructions (10)T7
Portable tanks: special provisions (11)TP2; TP24
EmSF-A; S-B!
Stowage categoryB
SegregationSG20
Segregation groupSGG8
SP 274

For the purposes of documentation and package marking, the proper shipping name shall be supplemented with the technical name (see 3.1.2.8.1). For UN 3077 and UN 3082 only, the technical name may be a name shown in capital letters in column 2 of the Dangerous Goods List, provided that this name does not include "N.O.S." and that special provision 274 is not assigned. The name which most appropriately describes the substance or mixture shall be used, e.g.: UN 3082, ENVIRONMENTALLY HAZARDOUS SUBSTANCE, LIQUID, N.O.S. (PAINT) UN 3082, ENVIRONMENTALLY HAZARDOUS SUBSTANCE, LIQUID, N.O.S. (PERFUMERY PRODUCTS).

SP 900

The transport of the following substances is prohibited: AMMONIUM HYPOCHLORITE AMMONIUM NITRATE liable to self-heating sufficient to initiate decomposition AMMONIUM NITRITES and mixtures of an inorganic nitrite with an ammonium salt CHLORIC ACID, AQUEOUS SOLUTION with more than 10% chloroc acid ETHYL NITRITE pure HYDROCYANIC ACID, AQUEOUS SOLUTION (HYDRODEN CYANIDE, AQUEOUS SOLUTION) with more than 20% hydrogen cyanide HYDROGEN CHLORIDE, REFRIGERATED LIQUID HYDROGEN CYANIDE SOLUTION in ALCOHOL with more than 45% hydrogen cyanide MERCURY OXYCYANIDE pure METHYL NITRITE PERCHLORIC ACID with more than 72% acid, by mass SILVER PICRATE, dry or wetted with less than 30% water by mass ZINC AMMONIUM NITRITE See also special provisions 349, 350, 351, 352 and 353.

Entry 2
Name and descriptionHYPOCHLORITE SOLUTION
Class8
Packing groupIII
Marine pollutantP
Special provisions (6)223; 274; 900
Limited quantity (LQ)5 L
Excepted quantity (EQ)E1
Packing instructions (8)P001; LP01
IBC instructions and provisionsIBC03
Portable tanks: instructions (10)T4
Portable tanks: special provisions (11)TP2; TP24
EmSF-A; S-B!
Stowage categoryB
SegregationSG20
Segregation groupSGG8
SP 223

If the chemical or physical properties of a substance covered by this description are such that, when tested, it does not meet the established defining criteria for the class or division listed in column 3, or any other class or division, it is not subject to the provisions of this Code except in the case of marine pollutant where 2.10.3 applies.

SP 274

For the purposes of documentation and package marking, the proper shipping name shall be supplemented with the technical name (see 3.1.2.8.1). For UN 3077 and UN 3082 only, the technical name may be a name shown in capital letters in column 2 of the Dangerous Goods List, provided that this name does not include "N.O.S." and that special provision 274 is not assigned. The name which most appropriately describes the substance or mixture shall be used, e.g.: UN 3082, ENVIRONMENTALLY HAZARDOUS SUBSTANCE, LIQUID, N.O.S. (PAINT) UN 3082, ENVIRONMENTALLY HAZARDOUS SUBSTANCE, LIQUID, N.O.S. (PERFUMERY PRODUCTS).

SP 900

The transport of the following substances is prohibited: AMMONIUM HYPOCHLORITE AMMONIUM NITRATE liable to self-heating sufficient to initiate decomposition AMMONIUM NITRITES and mixtures of an inorganic nitrite with an ammonium salt CHLORIC ACID, AQUEOUS SOLUTION with more than 10% chloroc acid ETHYL NITRITE pure HYDROCYANIC ACID, AQUEOUS SOLUTION (HYDRODEN CYANIDE, AQUEOUS SOLUTION) with more than 20% hydrogen cyanide HYDROGEN CHLORIDE, REFRIGERATED LIQUID HYDROGEN CYANIDE SOLUTION in ALCOHOL with more than 45% hydrogen cyanide MERCURY OXYCYANIDE pure METHYL NITRITE PERCHLORIC ACID with more than 72% acid, by mass SILVER PICRATE, dry or wetted with less than 30% water by mass ZINC AMMONIUM NITRITE See also special provisions 349, 350, 351, 352 and 353.

Source: BAM – Datenbank GEFAHRGUT, dl-de/by-2-0. IMDG Code Amdt. 42-24, applicable from 1 Jan 2026, status 9 Dec 2025 (modified)

ICAO (air)

Entry 1
Name and descriptionHypochlorite solution
Class8
LabelsCorrosive
Packing groupII
Special provisions (6)A3
Excepted quantity (EQ)E2
Packing instruction passenger aircraft851
Max. net quantity passenger aircraft1 L
Packing instruction limited quantity (Y)Y840
Max. net quantity limited quantity (Y)0.5 L
Packing instruction cargo aircraft855
Max. net quantity cargo aircraft30 L
ERG code8L
SP A3

If the chemical or physical properties of a substance covered by this description are such that, when tested, it does not meet the established defining criteria for the class or division listed in column 3, or any other class or division, it is not subject to these Instructions.

Entry 2
Name and descriptionHypochlorite solution
Class8
LabelsCorrosive
Packing groupIII
Special provisions (6)A3
Excepted quantity (EQ)E1
Packing instruction passenger aircraft852
Max. net quantity passenger aircraft5 L
Packing instruction limited quantity (Y)Y841
Max. net quantity limited quantity (Y)1 L
Packing instruction cargo aircraft856
Max. net quantity cargo aircraft60 L
ERG code8L
SP A3

If the chemical or physical properties of a substance covered by this description are such that, when tested, it does not meet the established defining criteria for the class or division listed in column 3, or any other class or division, it is not subject to these Instructions.

Source: BAM – Datenbank GEFAHRGUT, dl-de/by-2-0. ICAO TI 2025–2026, status 5 Nov 2024 (modified)

We maintain this information to the best of our knowledge, but errors and outdated data are possible. It does not replace the official text of ADR, RID, ADN, the IMDG Code or the ICAO TI, nor a check by a dangerous goods safety adviser. No liability is accepted for the information.

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