Steam boilers
Industrial heating where steady flame and repeatable operation matter.
Light diesel oil
LDO for controlled industrial heating.
Rerol's industrial LDO is supplied for heating applications that need stable combustion and documented batch quality. The team can compare the operating requirement with your current fuel.
Technical specifications · Rev 0.1 · 02 Nov 2026
Light Diesel Oil (LDO)
Indian standard reference, with tighter Rerol working targets for batch release.
A. Applicable product standard: IS 15770:2021
| CHARACTERISTIC | IS 15770 REQUIREMENT | REROL PROPOSED | REFERENCE TEST |
|---|---|---|---|
| Acid number, mg KOH/g, max | 0.5 | ≤0.5 | IS 1448 P:2 |
| Ash, % mass, max | 0.02 | ≤0.02 | IS 1448 P:4 |
| Carbon residue, whole sample, % mass | ≤1.5 | ≤1.0 (goal) | IS 1448 P:8 |
| Pour point, °C | ≤12 winter; ≤21 summer | ≤12 year-round (goal) | IS 1448 P:10 |
| Copper corrosion, 3h / 100 °C | Not worse than No. 2 | No. 2 or better | IS 1448 P:15 |
| Flash point (PMC), °C, min | 66 | ≥70 (goal) | IS 1448 P:21 |
| KV @ 40 °C, mm²/s | 2.5-15.0 | 2.5-15.0 | IS 1448 P:25 |
| Sediment, % mass, max | 0.10 | ≤0.05 (goal) | IS 1448 P:30 |
| Density @ 15 °C, kg/m3 | Report | Report on COA | IS 1448 P:16 |
| Water content, % vol, max | 0.25 | ≤0.10 (goal) | IS 1448 P:40 |
| Total sulphur, % mass | 0.005-1.50* | 0.005-1.00 (goal)* | ASTM D4294 |
SEASONAL RULE Winter for the standard means November through February; summer is the remainder of the year.
SULPHUR *Standard table shows 0.005-1.50% by mass. Lower sulphur levels or other emission-related limits may apply by purchaser, permit and location. Rerol ≤1.00% is a proposed tighter target, not a measured value.
USE / CLAIM For authorised industrial heating applications, not automotive diesel. An LDO label or claim of conformity should follow complete batch testing to IS 15770 and confirmation that production, storage and sale are authorised.
REFERENCE BASIS IndianOil-hosted IS 15770:2021 Table 1; BIS product manual PM/15770/01 (Dec 2024).
Applications
A versatile fuel for burners and heaters.
Product fit depends on the burner, required heat output, storage arrangement and duty cycle.
Industrial furnaces
Process heat for manufacturing and treatment applications.
Kilns
Sustained firing for continuous high-temperature duties.
Thermic fluid heaters
Controlled heat transfer for temperature-sensitive processes.
Process heating
Burners and heaters used for drying, curing and production support.
Diesel comparisons
Compare cost per unit of heat, not only the delivered price per litre.
Batch proof
Ask for the result that reaches your tank.
Exact batch values are documented on the COA. Applicable product standards must be confirmed against the supplied test report.
| Property | Control | Where to verify |
|---|---|---|
| Sulphur | Recorded for each batch | Shown on the supplied COA |
| Flash point | Recorded for each batch | Shown on the supplied COA |
| Kinematic viscosity | Recorded for each batch | Shown on the supplied COA |
| Water and sediment | Recorded for each batch | Shown on the supplied COA |
| Gross calorific value | Recorded for each batch | Shown on the supplied COA |
Compare properly
Delivered price is only one part of operating cost.
Include heat value, burner settings, storage, filtration, downtime risk and delivery reliability.
Heat value
Compare the cost per useful unit of heat using the batch COA.
Burner fit
Check nozzle, temperature and operating settings with the burner supplier.
Supply risk
A reliable schedule protects the plant from production stoppages.
Compare your current industrial fuel.
Send the monthly volume, current fuel and application for a same-day commercial comparison.