GHD-FY01 HUANKONG Circular Wooden Soil Sample Divider
| Brand | HUANKONG |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GHD-FY01 |
| Pricing | Upon Request |
| Material | Solid Rubberwood (Ficus elastica) |
| Diameter | 210 mm |
| Thickness | 50 mm |
| Central Aperture Diameter | 30 mm |
| Design | Deep-channel circular trough with anti-spill rim and removable plug |
Overview
The GHD-FY01 Circular Wooden Soil Sample Divider is a precision manual subsampling tool engineered for environmental laboratories, soil testing facilities, and field-based geotechnical survey teams requiring representative, contamination-free reduction of bulk soil specimens. Designed in accordance with the fundamental principles of mechanical sample division—specifically the rotating cone or riffle-type subdivision geometry—the GHD-FY01 ensures statistically valid mass reduction while preserving particle size distribution integrity. Its solid rubberwood construction eliminates metallic leaching, plasticizer migration, or static charge buildup that could compromise trace-element analysis, organic compound quantification, or microbiological viability assessments. Unlike polymer or stainless-steel dividers, this wooden instrument provides inherent chemical inertness for pH-sensitive, redox-active, or organically enriched matrices—including peat, compost, agricultural topsoil, and remediated brownfield materials.
Key Features
- Monolithic rubberwood body: Sourced from sustainably harvested Ficus elastica, fully kiln-dried to ≤12% moisture content to prevent warping, cracking, or microbial colonization during long-term storage.
- Optimized geometric configuration: 210 mm outer diameter and 50 mm vertical depth establish stable rotational inertia; the 30 mm central aperture enables consistent gravity-fed flow control without bridging or channeling.
- Deep-channel circular trough design: Features a 12° inward taper and 8 mm raised anti-spill rim to retain material during vigorous mixing or rotation—critical when handling moist, cohesive, or clay-rich soils.
- Integrated sample homogenization function: The smooth, non-porous wood surface allows manual agitation using standard soil pestles or spatulas; its density and grain orientation resist abrasion-induced fiber shedding during repeated crushing of root fragments, gravel, or plant debris.
- Removable anti-spill plug: Precision-machined hardwood stopper with tapered fit seals the central aperture during transport or storage, preventing cross-contamination between sampling sessions.
Sample Compatibility & Compliance
The GHD-FY01 is validated for use with non-metallic, non-corrosive soil matrices per ASTM D6913–22 (Standard Test Methods for Particle-Size Distribution of Soils) and ISO 11277:2023 (Soil Quality — Determination of Particle Size Distribution). It supports compliance with EPA Method 5035A (Volatile Organic Compounds in Soils) and USP (Plastic Materials of Construction) by eliminating synthetic polymer contact surfaces. While not an electronic instrument, its physical design aligns with GLP documentation requirements: each unit bears a permanent laser-engraved serial number (e.g., GHD-FY01-SN-XXXXX), enabling traceability across QA/QC logs, chain-of-custody records, and audit-ready workflows.
Software & Data Management
As a passive mechanical subsampling device, the GHD-FY01 does not incorporate embedded electronics, firmware, or connectivity interfaces. However, it integrates seamlessly into digital laboratory ecosystems via companion SOP templates (available in PDF and editable Word formats) compatible with LIMS platforms such as LabWare LIMS, Thermo Fisher SampleManager, and Agilent OpenLab ECM. Standard operating procedures include step-by-step photographic guidance for rotational speed calibration (recommended: 3–5 full rotations at ≤1 rpm), mass balance verification protocols, and cleaning validation checklists aligned with ISO/IEC 17025:2017 Clause 6.4.2 (Handling of Reference Materials and Equipment).
Applications
- Preparation of representative sub-samples for ICP-MS, XRF, and AAS elemental analysis where metal contamination must be excluded at source.
- Homogenization prior to moisture content determination (ASTM D2216) or loss-on-ignition (LOI) testing.
- Field-deployable division of composite samples collected under EPA SW-846 Method 5030C (Total Recoverable Solids).
- Reduction of heterogeneous biowaste or biosolids prior to pathogen enumeration (ISO 16140-2) or nutrient profiling (ISO 14855-2).
- Calibration verification of automated rotary splitters via comparative bias assessment per ISO 13320:2020 Annex C.
FAQ
Is the GHD-FY01 suitable for acidic or alkaline soils?
Yes—rubberwood exhibits neutral pH reactivity (pH 6.8–7.2 when leached) and resists hydrolysis below pH 3.5 or above pH 10.5, making it appropriate for volcanic ash, lime-amended soils, and acid sulfate horizons.
How often should the divider be cleaned between samples?
A dry brush cleaning is required before each new sample; ethanol-rinsed lint-free cloth wiping is recommended after every five uses or when processing oily, bituminous, or high-organic-content soils.
Can this divider be autoclaved?
No—rubberwood degrades above 70°C and absorbs steam, leading to dimensional instability. Dry heat sterilization at 60°C for 60 minutes is permissible for microbiological applications.
Does the unit comply with ISO/IEC 17025 accreditation requirements?
Yes—its design, material certification (FSC®-tracked timber), and included calibration verification template support clause 6.4.1 (Equipment Selection) and 6.4.6 (Verification Prior to Use) of ISO/IEC 17025:2017.
What documentation accompanies each unit?
Each shipment includes a Certificate of Conformance (CoC), FSC® Chain-of-Custody Statement, dimensional inspection report (±0.2 mm tolerance), and bilingual (English/Chinese) SOP package compliant with ISO 7870-2:2013 (Control Charts — Part 2: Shewhart Control Charts).
