الجليد الجاف عبر الهواء: 2025 امتثال, التحجيم & SOPS

إذا قمت بشحن البضائع المجمدة, dry ice via air remains the fastest, most reliable way to hold ≤ −18 °C in transit. في 2025 you’ll pass acceptance by venting the package, وضع العلامات UN1845 with net kilograms, applying a فصل 9 ملصق, and adding the correct على شعب الطريق (AWB) entries. يخطط 5-10 رطل/يوم of dry ice for small shippers and remember the 2.5 kg passenger و 5 lb USPS air limits. This guide blends regulation, field practice, and carrier nuance you can apply today.

What does dry ice via air require in 2025? (باي 954, UN1845, فصل 9, صافي - كجم, AWB order)
How much should you pack for 24–72 hours? (5–10 lb/day rule + physics‑based check)
كيف تحزم, ملصق, and document to pass acceptance? (10minute sop)
What are passenger and postal limits? (2.5 kg baggage, 5 lb USPS air)
When to choose dry ice vs. PCM/GEL? (decision tool for lanes and temperatures)

ماذا يفعل dry ice via air require in 2025?

إجابة أساسية: Use packaging that vents CO₂, mark the proper shipping name ("الجليد الجاف" أو "ثاني أكسيد الكربون, صلب") مع UN1845 و صافي جفاف الكتلة (كجم) on each package, and apply a فصل 9 ملصق. For cargo, 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. اتبع 2025 acceptance checklist to avoid refusals.

لماذا هذا يهم (expanded): “Vented” means never sealing dry ice in airtight liners; pressure from sublimating CO₂ can rupture packaging. Operators and integrators review UN number, اسم, صافي كجم, 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 باي 954 وتغيرات المشغل. Craft two micro‑SOPs if teams sometimes travel with samples and sometimes tender freight—one for cargo and one for أمتعة.

How to mark UN1845 and Class 9 ل dry ice via air

مكان UN1845 and the proper name on the same face as the فصل 9 label when space allows. Keep the 100 mm diamond unobstructed—don’t write inside it. مطبعة صافي كجم 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
رقم الأمم المتحدة	UN1845	Package & AWB	Identifies dry ice as Class 9 DG
الاسم الصحيح	الجليد الجاف / ثاني أكسيد الكربون, صلب	Package (same face as Class 9 when possible)	Standardizes hazard communication
صافي الكتلة	X kg لكل حزمة	Package (and overpack total if used)	Aircraft CO₂ load management
تسمية الخطر	فصل 9 (100 مم)	Package exterior	Acceptance checkpoint; keep unobscured

Practical tips you can use now

Never seal liners: Use vent‑friendly pouches or leave liners open.
Layer smartly: Bottom pouch → product → top pouch; add sides for 48–72 h lanes.
شرط مسبق: Hard‑freeze product; pre‑chill the shipper to cut early loss.
Book with numbers: Have net‑kg لكل حزمة ready during booking.

حالة العالم الحقيقي: A confectioner split 10 lb into two pouches, printed UN1845 with net kg on the same face as فصل 9, added the AWB entries in order, and cleared acceptance on the first attempt—even with a connection delay.

كم ثمن dry ice via air هل تحتاج إلى 24-72 ساعة?

Short rule: ابدأ مع 5-10 رطل (2.3-4.5 كجم) لكل 24 ساعة for a small (≈10–20 L) الشاحن المعزول. Use the higher end for hot lanes, فتحات الباب المتكرر, 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)

مدة	خفيف (≤ 22 °C)	دافيء (23-30 درجة مئوية)	حار (≥ 31 °C)	ماذا يعني لك
~ 24H	2–3 kg	3-5 كجم	5-6 كجم	Split into ≥2 pouches for surface coverage
~48 h	4-6 كجم	6-8 كجم	8-11 كجم	Add a thin −20 °C PCM at product face
~ 72H	6-8 كجم	9–12 kg	12–15 kg	Consider higher‑R insulation or a larger box

كيفية حزمة, ملصق, and document dry ice via air (باي 954)?

10minute sop (printable):

تجميد & منصة: Product ≤ −18 °C; pre‑chill the shipper.
شنطة & split: Load dry ice into vent‑friendly pouches; split into two or more.
Layer: Bottom pouch → payload → top pouch; fill voids lightly.
تنفيس: Close securely but لا make airtight.
علامة & ملصق: UN1845, الاسم الصحيح, صافي كجم, فصل 9 on same face when size allows.
Overpack (إذا تم استخدامه): Show total net kg on the overpack.
إدخالات AWB: UN1845, الاسم الصحيح, package count, صافي كجم (in that order).
Book with net kg: Operators may check aircraft‑type limits before acceptance.

راكب & postal limits for dry ice via air—what changes on baggage and mail?

أمتعة الركاب: With airline approval you may carry ≤2.5 كجم (5.5 رطل) لكل راكب, in vented packaging marked “Dry ice/Carbon dioxide, solid” and showing net quantity. This rule does لا apply to cargo.
USPS air mail: ≤5 رطل لكل بريد under Packaging Instruction 9A; يجب أن تنفيس الحزمة.
Domestic ground (نحن.): Dry ice alone is generally not regulated, but you still must vent and protect handlers from CO₂ exposure. Keep your 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:

وقت العبور > 36 h
Ambient peaks ≥ 30 °C
Product must stay ≤ −18 °C (no partial thaw)
Operator accepts UN1845 on your service

If not, trial a −20 °C or +5 °C بي سي إم (طور - تغيير المواد) with higher‑R insulation to reduce DG handling and simplify acceptance.

فحص ذاتي تفاعلي (score yourself)

Packaging vents CO₂ (yes = 1)
فصل 9 label unobscured (yes = 1)
UN1845 + الاسم الصحيح + صافي كجم printed (yes = 1)
AWB entries in order (yes = 1)
Overpack shows total net kg (إذا تم استخدامه) (yes = 1)
Net kg provided at booking (yes = 1)

Score 5–6: flight‑ready. Score ≤ 4: fix gaps before tender.

2025 التطورات & الاتجاهات في dry ice via air

ما الجديد: ال 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; لا تكتب داخل الماس). 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.

الأحدث في لمحة

Booking data matters: Net kg collected up front to validate aircraft limits.
Operator checklists updated: Emphasis on UN1845, net‑kg marks, and clear Class 9 الموضع.
Hybrid packouts: Small PCM layer + dry ice → fewer spikes without sacrificing frozen integrity.

نظرة السوق (اللغة الإنجليزية البسيطة): Expect continued growth in frozen lanes and greater use of validated shippers, loggers, and printable SOPs so teams can train in minutes and pass acceptance reliably.

الأسئلة المتداولة

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, الاسم الصحيح, صافي كجم), apply Class 9, and add the AWB entries in order. Use the acceptance checklist to self‑audit.

How much dry ice via air for 48 ساعات?
يخطط 10-20 رطل 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?
نعم. للأطعمة المجمدة (على سبيل المثال, بوظة) use dry ice; 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 صافي كجم علامات. Keep dry ice unsealed and print net kg on each package (and overpack).

ملخص & التوصيات

خلاصة القول: To fly dry ice via air, تنفيس الحزمة, علامة UN1845 with the proper name and صافي كجم, يتقدم فصل 9, and complete the AWB in order. Size refrigerant at 5-10 رطل/يوم, التحقق من صحة على المسار الخاص بك, and provide net kg at booking. Keep baggage/postal rules separate.

الخطوات التالية:

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, PPE, and AWB entries.

Visual aids

حول Tempk

نحن نتصميم 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: شارك المسار الخاص بك, payload mass, and box size—get a tailored packout spec and a one‑page acceptance audit you can train in under 15 دقائق.