Boulotte de glace sèche: 2025 Achat, Stockage & Guide d'expédition
At a glance—what you’ll learn
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What “dry ice packs bulk” moyens (and what it doesn’t).
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Comment choose pellets vs. blocs and the right récipient isolé.
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UN estimateur rapide for how much dry ice to load.
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The exact 2025 étiquettes & paperasserie that pass acceptance checks.
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Safety limits for CO₂ and the right way to store/vent.
1‑sentence definition (featured snippet‑ready):
Dry ice packs bulk refers to pallet/bin or case quantities of solid CO₂ (pellets/blocs) supplied in vented liners and used with insulated, venting shippers; boxes must be marked « Glace carbonique »/« Dioxyde de carbone », solide,»Et1845, and net dry‑ice mass (kg) per air/ground rules.
What exactly are you buying?
Common formats
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Boulettes (≈3–16 mm): fast pulldown, even coverage.
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Rice/mini pellets (≈⅛–¼″): dense packing around irregular shapes.
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Blocks/loaves: sublimation plus lente, longer holds with fewer openings.
(Choose by lane length and opening frequency.)
Conteneurs isolés
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PSE (budget, 24–48h)
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PPE (tough/reusable, 36–72h)
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VIP hybrids (tenue la plus longue, 48–96 h+)—often lets you shrink dry‑ice mass and DIM weight due to much lower heat leak. (VIPs deliver ultra‑low conductivity; model cost vs. refrigerant savings.)
De quelle quantité de neige carbonique avez-vous besoin?
Deux ground‑truth rates from FAA testing are widely used for planning:
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Small packages (~5 lb): ~2% of mass per hour
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Large/tightly packed (~100 lb): ~1% per hour
Aussi, 1 lb dry ice → ~8.8 ft³ CO₂ gas (plan ventilation).
Estimateur rapide (planner’s shortcut)
Prefer metric? 1 lb ≈ 0.454 kg.
Physics cross‑check: La glace sèche absorbe ~25–27 kJ/mol sur la sublimation (≈571–615 kJ/kg); your lane math should make sense against that energy budget.
(The estimator and planning ranges consolidate the calculators you drafted, tightened by FAA/NIST data.)
Starter table (avec 25% tampon de retard)
| Boîte (inner L) | Récipient | Transit (h) | Est. glace carbonique (kg) | Notes |
|---|---|---|---|---|
| 22 L | EPS 30 mm | 24–36 | 3.5–5,0 | Réduire l’espace libre |
| 30 L | EPP 40 mm | 36–48 | 5.0–7.0 | Ajouter 25% en été |
| 45 L | Hybride VIP | 48–72 | 6.5–10.0 | Less ice, higher box cost |
Péllets vs. blocs: qui dure plus longtemps?
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Boulettes spread evenly and pull down temperature quickly → best for mixed SKUs & portes ouvertes fréquemment.
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Blocks/loaves have lower surface‑area‑to‑volume → sublimation plus lente and longer holds; ideal for long lanes with minimal opening.
(Blend both: blocks for base load + pellet “rim” near hot spots.)
Compliance that passes in 2025 (air & sol)
Sur le paquet (air):
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Nom d'expédition approprié «Glace sèche» ou «Dioxyde de carbone, solide"
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Et1845
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Masse nette de glace sèche en kilogrammes
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Classe 9 étiquette (no writing inside the diamond)
Utiliser le 2025 Liste de contrôle d'acceptation de la glace sèche de l'IATA; it standardizes what ground crews verify.
Sur la lettre de transport: include dry‑ice entry with packages × net kg; some operators request net weight à la réservation pour vérifier les limites des avions (66th Ed. addendum).
NOUS. sol (POINT): packaging must permit CO₂ release; modes have specific marks (Par exemple, vessel warnings). Voir 49 CFR§173.217.
USPS (domestic air mail): ≤5lb (≈27 kg) par courrier, no international dry‑ice mail; suivre les instructions d'emballage 9UN.
Pour la pointe: Print labels with UN 1845 and net kg on the same face as the hazard label when space allows—carriers echo this in 2025 aides au travail.
Safe storage & manutention (people and rooms)
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Jamais hermétique. Use vented coolers/liners; faire pas tape inner foam lids shut.
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Ventilate staging areas—CO₂ sinks low; consider floor‑level monitors at bulk volumes.
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Gants + protection des yeux to avoid cold burns.
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Respect occupational exposure limits for CO₂: TWA 5 000 ppm et Stel 30 000 ppm (NIOSH/OSHA).
Container picking (buy the box before the ice)
| Récipient | Best lane | Impact de la glace | When to pick |
|---|---|---|---|
| PSE (25–40 mm) | 24–48h | Higher charge | Budget starter |
| PPE (30–50 mm) | 36–72h | Moderate charge | Reuse/durability |
| Hybride VIP | 48–96 h+ | Lowest charge | Voies longues/chaudes; cut DIM |
VIPs often reduce refrigerant mass for 72–144 h routes thanks to ultra‑low thermal conductivity. (Validate with data loggers.)
Buying in bulk (without surprises)
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Delivery form: totes/bins (~200–1,400 lb) or palletized cases; set recurring drops and reorder triggers.
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Vendor scorecard: grade/spec (FDS, pellet diameter/block size), supply resilience, conditionnement (ventable liners), et assistance à la conformité (sample labels).
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Contrôle des coûts: shrink headspace → place ice on top → improve insulation before adding more ice; VIP may lower total landed cost when lanes go long.
Questions fréquemment posées
Q1: Are “dry ice packs” the same as gel/PCM packs?
Non. La glace carbonique est du CO₂ solide (~ −78,5 ° C) pour congelé voies; gels/PCMs target glacé temps and aren’t a substitute for UN 1845 dry ice.
Q2: Combien de glace sèche par jour dois-je planifier?
Utiliser ~1–2%/h mass‑loss as a starting point (FAA), puis ajouter 25–50% buffer for delays and openings. Cross‑check against the sublimation energy budget.
Q3: Ce qui doit être sur la boîte pour les airs?
« Glace carbonique »/« Dioxyde de carbone », solide", Et1845, Kg net, et Classe 9—plus AWB text. Utilisez l'IATA 2025 liste de contrôle.
Q4: USPS limits for dry ice?
Domestic air mail is capped at ≤5lb par courrier; Le courrier international avec de la glace sec est interdit.
Q5: Is it okay to seal the inner liner to hold cold longer?
Non. L'emballage doit vent CO₂ pour éviter l'accumulation de pression.
How‑to: pack a frozen box with bulk dry ice (20SOP d'une minute)
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Assemble shipper (EPS / EPP / VIP) and confirm chemins de ventilation.
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Bag payload, ajouter un diviseur rigide/tray to separate from ice.
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Glace carbonique à chargement par le haut Produit ci-dessus; minimize headspace with fitments.
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Appliquer Et1845, Classe 9, Kg net; vérifier AWB texte.
