How easily will your material catch fire and keep burning? For plastics, cables, textiles, and composites, the answer can decide safety approval and market access. The LOI test measures exactly that — the minimum oxygen level needed to keep a material burning. Searching for a dependable limiting oxygen index (loi) testing lab in chennai, tamilnadu? Kiyo R&D Lab measures the LOI of your material so you can prove flame resistance with confidence.
From plastics and polymers to cables, foams, textiles, and flame-retardant compounds, our expert team delivers accurate, standards-based results with fast turnaround and clear, audit-ready reports you can rely on.
The Limiting Oxygen Index (LOI) is the minimum percentage of oxygen in an oxygen–nitrogen mixture that will just keep a material burning. A specimen is held in a controlled gas flow and ignited, and the oxygen level is adjusted until combustion is barely sustained. Since normal air is about 21% oxygen, a material with an LOI above 21 will tend to self-extinguish in air — the higher the LOI, the more flame-resistant. A reliable limiting oxygen index (loi) testing lab in chennai, tamilnadu turns this into a clear, comparable flammability number.
For manufacturers, it proves a compound meets a flame-retardance target. For exporters, it satisfies safety and buyer requirements. For R&D teams, it compares flame-retardant additives and formulations — all backed by repeatable, defensible data.
Our limiting oxygen index (loi) testing lab in chennai, tamilnadu covers plastics, cables, foams, textiles, and flame-retardant compounds using a calibrated LOI apparatus and proper specimen conditioning.
The oxygen % that just sustains combustion.
Whether a material self-extinguishes in air.
Compare flame-retardant additive levels.
Bars, sheets, film, and cable specimens.
Lot-by-lot flame-resistance verification.
UL 94, glow wire, and flammability on request.
Our limiting oxygen index (loi) testing lab in chennai, tamilnadu follows globally recognised methods so your reports are accepted by auditors, buyers, and regulators alike.
ASTM ISO
| Standard | What It Covers | Typical Use |
|---|---|---|
| ASTM D2863 | Oxygen index of plastics (LOI) | Plastics & polymers |
| ISO 4589-2 | Oxygen index at ambient temperature | International LOI method |
| ISO 4589-3 | Oxygen index at elevated temperature | High-temperature LOI |
| UL 94 | Flammability of plastic materials | Complementary flame rating |
| IEC 60695-11-10 | Horizontal & vertical flame tests | Electrical flammability |
Not sure which standard or LOI target your buyer requires? Our analysts recommend the right method and document it clearly in every report.
Based in Chennai with branches in Chrompet and Oragadam, Kiyo R&D Lab makes professional flammability testing easy to access for the Chennai–Oragadam industrial corridor, with convenient drop-off and courier-friendly collection.
Looking for a limiting oxygen index (loi) testing lab in chennai, tamilnadu? Our facilities are equipped for LOI, UL 94, and related flammability testing with quick turnaround.
📞 Call 90420 86986 💬 Request a QuoteExplore all our capabilities at www.kiyorndlab.com.
When fire safety, quality, and compliance are on the line, trust a lab that delivers clear answers. As a leading limiting oxygen index (loi) testing lab in chennai, tamilnadu, we combine calibrated equipment, recognised methods, and expert interpretation to give you data you can stand behind.
From a single flame-retardance check to ongoing production QC, the team at Kiyo R&D Lab is ready to help. Reach out today and turn your sample into a reliable, audit-ready report.
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