Fuel pellets produced from recycled feedstocks—such as paper, wood dust, and other recovered materials—can contain trace contaminants, including lubricating oils. These contaminants increase the likelihood of spontaneous self‑heating, a well‑documented hazard during bulk storage and transport. LCS Laboratory provides standardized testing to help manufacturers and EHS professionals evaluate this risk and implement appropriate controls.
Why Evaluate Self‑Heating Potential
Self‑heating in biomass pellets can progress from slow internal temperature rise to smouldering and, in some cases, full ignition. This behaviour is most likely to occur in large storage volumes where oxygen is available and heat cannot dissipate. Testing is essential for:
- Identifying batches with elevated self‑heating potential
- Supporting safe storage and transport practices
- Determining whether a product meets the criteria for classification as a self‑heating substance under dangerous‑goods regulations
- Reducing operational and liability risks associated with fires in warehouses, silos, or shipping containers
For manufacturers and consultants preparing safety documentation, defensible data on self‑heating behaviour is a critical component of hazard assessment.
Test Method and Classification Criteria
LCS Laboratory performs self‑heating testing following the United Nations classification procedure for self‑heating substances. The procedure includes:
Controlled Heating: A representative sample of fuel pellets is placed in a test vessel and held at 140 °C for 24 hours.
Core Temperature Monitoring: The internal temperature of the sample is continuously monitored throughout the exposure period.
Evaluation of Self‑Heating: A material is classified as self‑heating if:
- The core temperature exceeds 200 °C, or
- Smoke generation is observed during the test
Materials meeting these criteria must be shipped as dangerous goods under the applicable UN transport regulations.
This test provides actionable data for product classification, storage design, and quality‑control programs.
Working With LCS Laboratory
We support manufacturers, EHS specialists, and consultants who need reliable data for hazard assessments, SDS development, and transport‑classification decisions.
For project discussions, shipping instructions, or pricing, contact us through our website. ©
