ADR lookup / UN 3373
UN 3373 – BIOLOGICAL SUBSTANCE, CATEGORY B
ADR details for UN 3373 from ADR 2025, Table A: class 6.2, hazard identification number 606 in the upper half of the orange plate. There are 2 entries for this UN number, all listed below.
UN 3373
ADR (road)
Subject to ADR. An exemption applies only if all of the following conditions are met:
SP 319: Substances packed and packages which are marked in accordance with packing instruction P650 are not subject to any other requirements of ADR.
- 6.2
Entry 1
| Name and description | BIOLOGICAL SUBSTANCE, CATEGORY B |
|---|---|
| Class | 6.2 |
| Classification code | I4 |
| Packing group | – |
| Labels | 6.2 |
| Hazard identification number | 606 |
| Limited quantity (LQ) | 0 |
|---|---|
| Excepted quantity (EQ) | E0 |
| Packing instructions (8) | P650 |
|---|
| Portable tanks: instructions (10) | T1 |
|---|---|
| Portable tanks: special provisions (11) | TP1 |
| Tank code (12) | L4BH |
| Special provisions for tanks (13) | TU15; TU37; TE19 |
| Vehicle for tank carriage (14) | AT |
| Transport category | - |
|---|---|
| Tunnel restriction code | (-) |
| Operation (19) | S3 |
| Special provisions (6) | 319 |
|---|
SP 319
Substances packed and packages which are marked in accordance with packing instruction P650 are not subject to any other requirements of ADR.
- 6.2
Entry 2
| Name and description | BIOLOGICAL SUBSTANCE, CATEGORY B (animal material only) |
|---|---|
| Class | 6.2 |
| Classification code | I4 |
| Packing group | – |
| Labels | 6.2 |
| Hazard identification number | 606 |
| Limited quantity (LQ) | 0 |
|---|---|
| Excepted quantity (EQ) | E0 |
| Packing instructions (8) | P650 |
|---|
| Portable tanks: instructions (10) | T1; BK1; BK2 |
|---|---|
| Portable tanks: special provisions (11) | TP1 |
| Tank code (12) | L4BH |
| Special provisions for tanks (13) | TU15; TU37; TE19 |
| Vehicle for tank carriage (14) | AT |
| Transport category | - |
|---|---|
| Tunnel restriction code | (-) |
| Operation (19) | S3 |
| Special provisions (6) | 319 |
|---|
SP 319
Substances packed and packages which are marked in accordance with packing instruction P650 are not subject to any other requirements of ADR.
Source: BAM – Datenbank GEFAHRGUT, dl-de/by-2-0. ADR 2025 (valid from 1 Jan 2025), BAM status 4 Nov 2024 (modified)
RID (rail)
| Name and description | BIOLOGICAL SUBSTANCE, CATEGORY B |
|---|---|
| Class | 6.2 |
| Classification code | I4 |
| Labels | 6.2 |
| Hazard identification number | 606 |
| Special provisions (6) | 319 |
| Limited quantity (LQ) | 0 |
| Excepted quantity (EQ) | E0 |
| Packing instructions (8) | P650 |
| Portable tanks: instructions (10) | T1 |
| Portable tanks: special provisions (11) | TP1 |
| Tank code (12) | L4BH |
| Special provisions for tanks (13) | TU15; TU37 |
| Transport category | - |
| Express parcels | CE14 |
SP 319
Substances packed and packages marked in accordance with packing instruction P650 are not subject to any other requirements of RID.
| Name and description | BIOLOGICAL SUBSTANCE, CATEGORY B (animal material only) |
|---|---|
| Class | 6.2 |
| Classification code | I4 |
| Labels | 6.2 |
| Hazard identification number | 606 |
| Special provisions (6) | 319 |
| Limited quantity (LQ) | 0 |
| Excepted quantity (EQ) | E0 |
| Packing instructions (8) | P650 |
| Portable tanks: instructions (10) | T1; BK1; BK2 |
| Portable tanks: special provisions (11) | TP1 |
| Tank code (12) | L4BH |
| Special provisions for tanks (13) | TU15; TU37 |
| Transport category | - |
| Express parcels | CE14 |
SP 319
Substances packed and packages marked in accordance with packing instruction P650 are not subject to any other requirements of RID.
Source: BAM – Datenbank GEFAHRGUT, dl-de/by-2-0. RID 2025, status 4 Nov 2024 (modified)
ADN (inland waterways)
| Name and description | BIOLOGICAL SUBSTANCE, CATEGORY B / BIOLOGICAL SUBSTANCE, CATEGORY B (animal material only) |
|---|---|
| Class | 6.2 |
| Classification code | I4 |
| Labels | 6.2 |
| Special provisions (6) | 319 |
| Limited quantity (LQ) | 0 |
| Excepted quantity (EQ) | E0 |
| Equipment required | PP |
| Number of cones/blue lights | 0 |
SP 319
Substances packed and packages marked in accordance with packing instruction P650 of ADR are not subject to any other requirements of ADN.
Source: BAM – Datenbank GEFAHRGUT, dl-de/by-2-0. ADN 2025, status 4 Nov 2024 (modified)
IMDG (sea)
| Name and description | BIOLOGICAL SUBSTANCE, CATEGORY B |
|---|---|
| Class | 6.2 |
| Special provisions (6) | 319; 341 |
| Limited quantity (LQ) | 0 |
| Excepted quantity (EQ) | E0 |
| Packing instructions (8) | P650 |
| Portable tanks: instructions (10) | T1; BK2 |
| Portable tanks: special provisions (11) | TP1 |
| EmS | F-A; S-T |
| Stowage category | C |
| Stowage | SW2; SW18 |
SP 319
Substances packed and packages marked in accordance with packing instruction P650 are not subject to any other provisions of this Code.
SP 341
Bulk transport of infectious substances in BK2 bulk containers is only permitted for infectious substances contained in animal material as defined in 1.2.1 (see 4.3.2.4.1).
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)
| Name and description | Biological substance, Category B |
|---|---|
| Class | 6.2 |
| Labels | None |
| Excepted quantity (EQ) | E0 |
| Packing instruction passenger aircraft | See 650 |
| Packing instruction cargo aircraft | See 650 |
| ERG code | 11L |
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.
