Official Sample Submission Form (Chain of Custody)
All laboratory submissions must be accompanied by our official intake document specifying requested tests, field sampling locations, and client contact details.
Sampling & Preservation Requirements
Accurate analytical results depend directly on proper field sampling and storage prior to laboratory intake.
| Sample Category | Minimum Quantity | Container & Packaging | Preservation & Handling | Primary Target Tests |
|---|---|---|---|---|
|
🌱 Soil Samples
|
500 g – 1 kg (composite) | Clean, heavy-duty polyethylene bag, double-sealed and labeled | Air-dry at room temperature away from direct sunlight; avoid high moisture | pH, EC, Available NPK, Organic Matter, Moisture |
|
💧 Agricultural Water
|
1.0 L – 2.0 L | New, sterile polypropylene bottle; rinse 3 times with sample water before filling | Keep chilled (4°C) in an insulated ice box; transport within 24 hours | pH, EC, Total Dissolved Solids, Salinity, Cations (Na, K, Ca) |
|
🧫 Microbial Samples
|
250 g / 500 mL | Pre-sterilized containers, sterile sampling bags (e.g., Whirl-Pak) | Strict aseptic collection; refrigerate immediately at 2°C – 8°C; do not freeze | Total Viable Count (TVC), Yeast & Mold, Fungal Enumeration |
|
🌾 Feed & Plant Tissues
|
200 g – 500 g | Sealed moisture-barrier bag or airtight plastic tub | Homogenized representative batch; store in dry, cool conditions | Total Nitrogen, Crude Protein (Kjeldahl), Mineral Ash |
|
🍞 Processed Food
|
300 g (unopened unit) | Original retail packaging or sterile airtight specimen jar | Maintain indicated storage conditions (ambient or cold chain) | Proximate analysis, moisture percentage, microbial hygiene indicators |
Laboratory Reception & Processing Workflow
Collection & Labeling
Collect samples following standard sampling protocols and attach clear, waterproof labels with unique sample IDs.
Documentation
Complete the physical Sample Submission Form or fill out the pre-registration digital form below.
Intake Verification
Deliver in person or courier to the Makandura reception; technical officers inspect sample integrity and issue an intake voucher.
Testing & Release
Analysis is conducted in dedicated suites, and verified test certificates are dispatched within standard turnaround times.
Sample Delivery Information
Delivery Address
SABSTraC Analytical Reception Desk
Department of Biotechnology
Faculty of Agriculture & Plantation Management
Wayamba University of Sri Lanka
Makandura, Gonawila (NWP), 60170, Sri Lanka
Sample Receiving Hours
Monday to Friday: 9:00 AM – 3:30 PM
(Samples requiring cold chain must be delivered before 12:00 PM for same-day processing)
Direct Laboratory Assistance
Phone: +94 (0)31-3315373
Email: dept.biotec@wyb.ac.lk
Turnaround Times (TAT)
Standard processing windows under regular laboratory operating conditions:
- Basic Soil/Water Parameters: 3–5 Business Days
- Microbial Culture Enumeration: 5–7 Business Days
- Kjeldahl Nitrogen & Crude Protein: 4–6 Business Days
- Custom Advisory Projects: Timelines agreed upon consultation
Digital Sample Pre-Registration
Notify our technical officers ahead of sample dispatch to ensure expedited sample intake and priority logging.