HUANKONG GHD-YB02 Portable Soil Sample Cold Transport Box

Overview

The HUANKONG GHD-YB02 Portable Soil Sample Cold Transport Box is an engineered passive thermal management solution designed specifically for the secure, temperature-controlled field transport of environmental soil samples. It operates on the principle of conductive heat transfer suppression using high-latent-phase-change ice packs embedded within a thermally insulated cavity. Unlike active refrigerated units, the GHD-YB02 requires no external power source—making it ideal for remote sampling campaigns, multi-site field surveys, and compliance-driven workflows where electrical infrastructure is unavailable or impractical. Its core function is to maintain soil matrix integrity during transit by limiting microbial activity, enzymatic degradation, and volatile organic compound (VOC) loss—critical requirements for subsequent laboratory analysis under EPA Method 5035A, ISO 11464:2023 (soil pre-treatment), and ASTM D5092–22 (sampling and preservation of soil for chemical analysis). The unit is validated to sustain internal temperatures at or below 4°C for a minimum of 20 consecutive hours when ambient conditions remain ≤30°C and ice packs are fully conditioned at –20°C prior to loading.

Key Features

• Passive cooling architecture with three independently removable, food-grade phase-change ice packs (220 g each), pre-conditioned at –20°C for optimal thermal mass and uniform heat absorption.
• High-density flexible polymer composite shell offering impact resistance (IEC 60068-2-75 compliant drop test performance from 1 m onto concrete), UV stability, and low-temperature flexibility down to –20°C.
• Modular internal layout featuring 48 vertically aligned, tapered sleeves—each sized to accommodate standard 250 mL polyethylene or glass soil sampling bottles (DIN 12497-compliant dimensions) with positive retention to prevent axial displacement or lateral tipping.
• Integrated external transparent label window (120 × 80 mm) compatible with laminated chain-of-custody tags, barcoded sample manifests, or GLP-compliant field log inserts.
• Stackable design with recessed base and reinforced lid interlock, enabling stable palletized transport in certified environmental logistics vehicles (UN 3373 compliant when used with appropriate biological hazard labeling).

Sample Compatibility & Compliance

The GHD-YB02 accommodates all widely adopted soil sampling containers—including EPA-compliant wide-mouth HDPE jars (e.g., Fisherbrand™ 02-521-10), glass amber bottles with PTFE-lined caps, and ISO-standardized stainless-steel sampling tins. Its interior geometry prevents cross-contamination through physical isolation and eliminates condensation pooling via micro-ventilated sleeve bases. The unit meets material safety requirements per REACH Annex XVII and RoHS Directive 2011/65/EU. While not a medical device, its construction and thermal performance align with WHO TRS 961 Annex 5 (transport of environmental specimens) and supports adherence to ISO/IEC 17025:2017 clause 5.8.2 (sample handling and preservation). For regulated programs, it facilitates documented cold-chain continuity when paired with NIST-traceable temperature data loggers (e.g., TempTale® Ultra).

Software & Data Management

As a passive hardware platform, the GHD-YB02 does not incorporate embedded electronics or firmware. However, it is fully interoperable with third-party cold-chain monitoring ecosystems. Field teams routinely integrate it with Bluetooth-enabled temperature loggers (e.g., LogTag® TRIX-8 or Onset HOBO U12) placed centrally within the chamber. Recorded time-series data—exportable as CSV or PDF reports—can be synchronized into LIMS platforms (e.g., LabWare LIMS, Thermo Fisher SampleManager) to satisfy audit requirements for 21 CFR Part 11 electronic records, ISO 17025 traceability, and EPA Region-specific QA/QC reporting (e.g., QAPP Appendix F). The external label window supports printed QR codes linking directly to digital chain-of-custody entries.

Applications

• Regulatory soil sampling for Phase I/II Environmental Site Assessments (ASTM E1527–21)
• Long-term ecological monitoring networks requiring multi-day sample consolidation (e.g., USDA-NRCS National Resources Inventory)
• Contaminated site remediation verification (e.g., petroleum hydrocarbons, heavy metals, PFAS precursors)
• Microbial community profiling (DNA/RNA extraction workflows sensitive to freeze-thaw cycling)
• Field deployment in conjunction with portable XRF analyzers or soil gas probes requiring concurrent sample stabilization

FAQ

What is the validated hold time at 4°C under typical field conditions?
When loaded with fully conditioned ice packs and ambient temperatures ≤30°C, the GHD-YB02 maintains ≤4°C for ≥20 hours—verified per ISO 22000 Annex C thermal mapping protocols.
Can the ice packs be reused, and what is their service life?
Yes—each ice pack is rated for ≥500 freeze-thaw cycles without latent capacity degradation, provided they are stored at –20°C ±2°C between uses and never exposed to direct sunlight or mechanical puncture.
Is the box suitable for air transport under IATA regulations?
Yes—when used with non-leaking, UN-certified sample containers and properly declared as “environmental specimens, non-infectious” (UN 3373), it complies with IATA Packing Instruction 650 for chilled cargo.
Does the unit meet GLP or GMP storage requirements for regulatory submissions?
While the box itself is not GLP-certified, its documented thermal performance, compatibility with audit-ready data loggers, and use in validated field SOPs support GLP-compliant sample integrity—provided full cold-chain documentation is maintained per OECD Principles of GLP Section 1.3.12.