Overview
ISO 22982-2:2021 - "Transport Packaging - Temperature controlled transport packages for parcel shipping - Part 2: General specifications of testing" defines standardized test methods for evaluating temperature-controlled parcel packaging. It specifies sampling, preconditioning, physical and thermal performance tests, sensor placement, data logging and reporting requirements to assess insulation performance, thermal conductivity, and overall thermal behavior of parcel shipping packages.
Key topics and technical requirements
- Scope: Tests for transport packages that use insulation to block thermal conduction between inside and outside of a product package.
- Sampling & preconditioning:
- Use new, unused packages; testing not earlier than 72 h after production.
- Precondition samples at 23 °C ± 1 °C for 24 h (ISO 2233).
- Physical performance: Follow test methods in ISO 4180 for physical integrity and packaging performance.
- Thermal test environment:
- Environmental chamber control: ±1 °C stability; air velocity recommended 0.1–2 m/s.
- Test durations typically aligned to parcel transit (e.g., 24 h, 48 h, 72 h).
- Outside atmosphere can be set by stakeholder-defined temperature profiles or pre-determined values (examples include −30 °C, 23 °C, 40 °C ±1 °C).
- Inside atmosphere & cooling media:
- Supports testing with phase change materials (PCM), ice/cold water, dry ice (solid CO2), or liquid nitrogen when applicable.
- Instrumentation:
- Use calibrated data loggers; sensitivity ≤ 0.1 °C, accuracy ≤ ±1 °C.
- Measure temperatures every 10 minutes; at least three sensors placed (upper middle, center, lower middle).
- Thermal calculations:
- Overall heat transfer: q = U · (TH − TL), where U is the overall heat transfer coefficient.
- Material thermal conductivity measured per ISO 22007-1.
- Reporting: Test reports must reference ISO 22982-2 and include lab/client info, sample details, test conditions, deviations and results.
Applications and users
This standard is practical for:
- Packaging designers and material suppliers validating insulation and refrigerant strategies (PCM, ice packs, dry ice).
- Third‑party test laboratories establishing repeatable test methods for parcel-sized refrigerated shipments.
- E‑commerce shippers, pharmaceutical and food logistics teams specifying performance requirements for cold‑chain parcel shipping.
- Procurement and compliance teams using standardized test evidence for supplier qualification and risk assessment.
Related standards
- ISO 22982 series (other parts)
- ISO 2233 (conditioning for testing)
- ISO 4180 (performance test schedules)
- ISO 22007-1 (thermal conductivity)
- ISTA Procedure 7E, ASTM D3103 (methodological references)
Keywords: ISO 22982-2:2021, transport packaging, temperature-controlled transport packages for parcel shipping, insulation performance, thermal conductivity testing, PCM, dry ice, overall heat transfer coefficient.