Glace sèche via l'air: 2025 Conformité, Dimensionnement & Sops
Si vous expédiez des marchandises surgelées, dry ice via air remains the fastest, most reliable way to hold ≤ −18 °C in transit. Dans 2025 you’ll pass acceptance by venting the package, marquage UN1845 with net kilograms, applying a Classe 9 étiquette, and adding the correct Sur Waybill (AWB) entries. Plan 5–10 lb / jour of dry ice for small shippers and remember the 2.5 kg passenger et 5 lb USPS air limits. This guide blends regulation, field practice, and carrier nuance you can apply today.
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What does dry ice via air require in 2025? (PI 954, UN1845, Classe 9, Net - kg, AWB order)
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How much should you pack for 24–72 hours? (5–10 lb/day rule + physics‑based check)
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How do you pack, étiquette, and document to pass acceptance? (10‑minute SOP)
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What are passenger and postal limits? (2.5 kg baggage, 5 lb USPS air)
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When to choose dry ice vs. PCM / GEL? (decision tool for lanes and temperatures)
Qu'est-ce que dry ice via air exiger 2025?
Réponse de base: Use packaging that vents CO₂, mark the proper shipping name («Glace sèche» ou «dioxyde de carbone, solide") avec UN1845 et le net dry‑ice mass (kg) sur chaque paquet, et appliquer un Classe 9 étiquette. Pour le fret, the AWB must show UN1845 → proper name → package count → net kg in that order. Airlines increasingly collect net kg at booking to manage aircraft CO₂ limits. Suivez le 2025 acceptance checklist to avoid refusals.
Pourquoi cela compte (expanded): “Vented” means never sealing dry ice in airtight liners; pressure from sublimating CO₂ can rupture packaging. Operators and integrators review UN number, nom, Kg net, and hazard label during acceptance, and many ask for net kg during booking. Keep baggage rules separate: 2.5 kg per passenger is not a cargo limit; cargo follows PI 954 et variations de l'opérateur. Craft two micro‑SOPs if teams sometimes travel with samples and sometimes tender freight—one for cargaison and one for baggage.
How to mark UN1845 and Class 9 pour dry ice via air
Lieu UN1845 and the proper name on the same face as the Classe 9 label when space allows. Keep the 100 mm diamond unobstructed—don’t write inside it. Imprimer Kg net per package clearly; if you use an overpack, repeat or aggregate the total net kg on the overpack. Most carriers align on these details and may specify minimum font size or label placement, so train packers to apply marks consistently before tender.
| AWB & Package Requirement | What to Write | Where it Goes | Why it Matters |
|---|---|---|---|
| Numéro de l'ONU | UN1845 | Emballer & AWB | Identifies dry ice as Class 9 DG |
| Nom propre | Glace sèche / Dioxyde de carbone, solide | Emballer (same face as Class 9 when possible) | Standardizes hazard communication |
| Net mass | X kg par forfait | Emballer (and overpack total if used) | Aircraft CO₂ load management |
| Hazard label | Classe 9 (100 MM) | Package exterior | Acceptance checkpoint; keep unobscured |
Conseils pratiques que vous pouvez utiliser dès maintenant
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Never seal liners: Use vent‑friendly pouches or leave liners open.
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Coucher intelligemment: Bottom pouch → product → top pouch; add sides for 48–72 h lanes.
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Precondition: Hard‑freeze product; pre‑chill the shipper to cut early loss.
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Book with numbers: Have net‑kg par forfait ready during booking.
Cas réel: A confectioner split 10 lb into two pouches, printed UN1845 with net kg on the same face as Classe 9, added the AWB entries in order, and cleared acceptance on the first attempt—even with a connection delay.
Combien dry ice via air Avez-vous besoin de 24 à 72 heures?
Short rule: Commencer par 5–10 lb (2.3–4,5 kg) par 24h for a small (≈10–20 L) expéditeur isolé. Use the higher end for hot lanes, frequent door‑opens, or lower‑R insulation. Validate with a quick lane test and add a “delay day” if your route stalls.
Physics check (to right‑size): Dry ice’s cooling capacity comes from its sublimation energy (~571 kj / kg). If you estimate your shipper’s hourly heat leak, you can compute a minimum dry‑ice mass and then add 10–20% buffer.
Quick sizing table (10–20 L shipper)
| Durée | Bénin (≤22 ° C) | Chaud (23–30 ° C) | Chaud (≥31 ° C) | Ce que cela signifie pour vous |
|---|---|---|---|---|
| ~ 24h | 2–3 kg | 3–5 kg | 5–6 kg | Split into ≥2 pouches for surface coverage |
| ~ 48h | 4–6 kg | 6–8 kg | 8–11kg | Add a thin −20 °C PCM at product face |
| ~ 72h | 6–8 kg | 9–12 kg | 12–15 kg | Consider higher‑R insulation or a larger box |
Comment emballer, étiquette, and document dry ice via air (PI 954)?
10‑minute SOP (printable):
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Geler & scène: Product ≤ −18 °C; pre‑chill the shipper.
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Bag & split: Load dry ice into vent‑friendly pouches; split into two or more.
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Couche: Bottom pouch → payload → top pouch; fill voids lightly.
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Ventilation: Close securely but ne pas make airtight.
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Marque & étiquette: UN1845, nom propre, Kg net, Classe 9 on same face when size allows.
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Trop déborder (Si utilisé): Show total net kg on the overpack.
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Entrées AWB: UN1845, nom propre, comptage des forfaits, Kg net (in that order).
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Book with net kg: Operators may check aircraft‑type limits before acceptance.
Passenger & postal limits for dry ice via air—what changes on baggage and mail?
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Bagages de passagers: With airline approval you may carry ≤ 2,5 kg (5.5 kg) par passager, in vented packaging marked “Dry ice/Carbon dioxide, solid” and showing net quantity. This rule does pas apply to cargo.
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Mail aérien USPS: ≤5 lb par pièce under Packaging Instruction 9A; le colis doit être ventilé.
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Domestic ground (NOUS.): Dry ice alone is generally not regulated, but you still must vent and protect handlers from CO₂ exposure. Gardez votre dry ice via air SOP separate from ground rules.
Dry ice via air or PCM/gel—how should you choose?
Use dry ice via air when any two are true:
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Temps de transit > 36 h
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Ambient peaks ≥ 30 °C
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Product must stay ≤ −18 °C (no partial thaw)
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Operator accepts UN1845 on your service
If not, trial a −20 °C or +5 °C PCM (matériau de phase) with higher‑R insulation to reduce DG handling and simplify acceptance.
Interactive self‑check (score yourself)
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Packaging vents CO₂ (yes = 1)
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Classe 9 label unobscured (yes = 1)
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UN1845 + nom propre + Kg net printed (yes = 1)
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AWB entries in order (yes = 1)
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Overpack shows total net kg (Si utilisé) (yes = 1)
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Net kg provided at booking (yes = 1)
Score 5–6: flight‑ready. Score ≤ 4: fix gaps before tender.
2025 developments & tendances dry ice via air
Quoi de neuf: Le 2025 cycle tightened the practical expectation to provide net dry‑ice kg during booking so operators can check aircraft CO₂ limits. Carriers refreshed acceptance job aids (label size/placement; N'écrivez pas à l'intérieur du diamant). Many brands now pair a thin −20 °C PCM at the product face with perimeter dry ice to reduce DG mass while damping door‑open spikes.
Dernier en un coup d'œil
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Booking data matters: Net kg collected up front to validate aircraft limits.
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Operator checklists updated: Emphasis on UN1845, net‑kg marks, and clear Class 9 placement.
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Emballages hybrides: Small PCM layer + dry ice → fewer spikes without sacrificing frozen integrity.
Perspicacité du marché (anglais ordinaire): Expect continued growth in frozen lanes and greater use of validated shippers, bûcherons, and printable SOPs so teams can train in minutes and pass acceptance reliably.
Questions fréquemment posées
Do I need a Shipper’s Declaration for dry ice via air?
Not when dry ice only refrigerates non‑dangerous goods. You must still mark the package (UN1845, nom propre, Kg net), Appliquer la classe 9, and add the AWB entries in order. Use the acceptance checklist to self‑audit.
How much dry ice via air for 48 heures?
Plan 10–20 lb for a small insulated shipper, increasing toward 20 lb for hot lanes or frequent door‑opens, then tune via a lane test.
What’s the per‑package limit for cargo?
Carrier job aids commonly reference ≤ 200 kg net dry ice per package under PI 954; aircraft‑level limits can also apply. Confirm operator variations if you approach high masses.
Can I use dry ice via air for food shipments?
Oui. Pour les aliments surgelés (Par exemple, glace) Utiliser la glace sèche; for 2–8 °C groceries, switch to PCM/gel to avoid DG handling. Keep packaging vented either way.
What causes most acceptance failures?
Airtight inner liners and missing Kg net marques. Keep dry ice unsealed and print net kg on each package (and overpack).
Résumé & recommandations
Fin de compte: To fly dry ice via air, évacuer le colis, marque UN1845 with the proper name and Kg net, appliquer Classe 9, and complete the AWB in order. Size refrigerant at 5–10 lb / jour, validez sur votre voie, and provide net kg at booking. Keep baggage/postal rules separate.
Étapes suivantes:
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Print labels and a one‑page acceptance checklist. 2) Run one lane test and tune dry‑ice kg by ±10–20%. 3) Add a thin −20 °C PCM at the product face for hot lanes. 4) Train packers on venting, EPP, and AWB entries.
Liens internes suggérés (anchor text)
Visual aids
À propos du tempk
Nous concevons dry ice via air packouts that pass acceptance and protect payloads. Our planners combine validated shippers, PI 954‑ready labels, and lane‑based sizing to reduce claims and speed onboarding with carriers. Clients choose us for fast SOPs, practical training, and support that scales from pilot to nationwide distribution.
CTA: Partagez votre voie, masse de charge utile, and box size—get a tailored packout spec and a one‑page acceptance audit you can train in under 15 minutes.
