UN 3270 — ADR 2025 Table A: class 4.1, classification code F1, packing group II, labels 4.1, special provisions 237 286 403, limited quantity 1 kg, excepted quantity E2, packing instructions P411, transport category 2, tunnel restriction code (E), hazard identification number —.
UNECE ADR 2025, ECE/TRANS/352 · checked 2026-10-28
Table A — ADR 2025 (ECE/TRANS/352), UN 3270| (1) UN No. | 3270 |
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| (2) Name and description | NITROCELLULOSE MEMBRANE FILTERS, with not more than 12.6 % nitrogen, by dry mass |
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| (3a) Class | 4.1 |
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| (3b) Classification code | F1 |
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| (4) Packing group | II |
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| (5) Labels | 4.1 |
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| (6) Special provisions | 237 286 403 |
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| (7a) Limited quantities | 1 kg |
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| (7b) Excepted quantities | E2 |
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| (8) Packaging: packing instructions | P411 |
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| (9a) Packaging: special packing provisions | — |
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| (9b) Packaging: mixed packing provisions | MP11 |
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| (10) Portable tanks and bulk containers: instructions | — |
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| (11) Portable tanks and bulk containers: special provisions | — |
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| (12) ADR tank: tank code | — |
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| (13) ADR tank: special provisions | — |
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| (14) Vehicle for tank carriage | — |
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| (15) Transport category (Tunnel restriction code) | 2 (E) |
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| (16) Special provisions for carriage: packages | — |
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| (17) Special provisions for carriage: bulk | — |
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| (18) Special provisions for carriage: loading, unloading and handling | — |
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| (19) Special provisions for carriage: operation | — |
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| (20) Hazard identification No. | — |
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ADR 2027 (accepted) — no change for UN 3270
ADR 2027 was accepted: depositary notification C.N.395.2026 (9 October 2026) records no objection to the amendments proposed by C.N.252.2026. It applies from 1 January 2027, and ADR 2025 may still be applied until 30 June 2027 (1.6.1.1). (C.N.395.2026)
ADR 2027: no Table A change for this entry (checked against ECE/TRANS/WP.15/274, Add.1 and Corr.1). Other parts of ADR 2027 may still affect its carriage.
ADR 2025 remains the edition FreightUtils serves and the one that applies until ADR 2027 takes effect on 1 January 2027; after that, ADR 2025 may still be applied until 30 June 2027 (1.6.1.1).
All ADR 2027 Table A changes →Check a list of UN numbers →
In plain words
- Tunnels
- Tunnel code (E): in tanks, Prohibited in E; in other carriage, Prohibited in E. Every category except E. (ADR 8.6.4; from the ADR table itself)
- Small-load exemption
- Transport category 2: at most 333 per transport unit under 1.1.3.6, counted ×3 toward the 1,000-point limit (ADR 1.1.3.6.3; from the ADR table itself)
- Labels
- Labels: model 4.1 (Flammable solids, self-reactive and polymerizing substances, and solid desensitized explosives) (ADR 5.2.2.2.2, label model No. 4.1; paraphrase, not yet reviewed)
- Packing
- Packing instruction P411: UN 3270 nitrocellulose membrane filters: removable-head drums, boxes or jerricans, built so pressure cannot cause explosion; max 30 kg net. Mixed packing provision MP11: Up to 5 kg per inner may be mixed with other codes or classes that permit it, but not Class 5.1 PG I or II, or with non-ADR goods. (ADR 4.1.4.1, P411, 4.1.10.4, MP11; paraphrase, not yet reviewed)
Assembled from FreightUtils' meanings of the Table A codes, not the official text. A statement marked “not yet reviewed” has not yet been checked against ADR by a person.
Class 4.1 — Flammable SolidsPacking Group II
- Packing Group
- II
- Medium danger
- Classification Code
- F1
- Tunnel Code
- (E) meaning →
- Code governing tunnel passage
- Transport Category
- 2
- For the 1,000-point rule (0 = highest restriction)
- Hazard ID No.
- —
- Kemler code
- Limited Quantity
- 1 kg
- Max per inner package for LQ relief
- Excepted Quantity
- E2
- EQ code for excepted quantity relief
Thresholds — why, not just the verdict
Transport Category
Category 2
×3 points per kg/L — up to 333 kg/L of this substance alone stays under the 1,000-point threshold
Per-substance max
333 kg/L
Per-substance maximum for 1.1.3.6 relief (1.1.3.6.3)
Limited Quantity
1 kg
Max per inner packaging for LQ relief (Chapter 3.4)
Excepted Quantity
E2
Max 30 ml/g per inner, 500 ml/g per outer package (Chapter 3.5)
Tunnel Code
Governs which tunnel categories the load may pass
Special Provisions
SP 237, SP 286, SP 403
May alter scope or limits — full text in ADR 2025 Chapter 3.3
Hazard Labels Required
Label 4.1
These labels must be displayed on packages and vehicle placards in accordance with ADR 2025.
Special Provisions
SP 237SP 286SP 403
Refer to ADR 2025 Chapter 3.3 for full text of each provision.
Check if UN 3270 qualifies for 1.1.3.6 exemption
Calculate small load points and check exemption thresholds
📅Data: UNECE ADR 2025 (ECE/TRANS/352), via EU Directive 2008/68/EC. Last verified October 2026
ADR reference data only. Classification is the consignor's legal responsibility. Consult a DGSA for compliance decisions.
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