BIS ATF Specification Now Recognises FIJI for FAME & SAF Co-Processing Control
Stanhope-Seta is pleased to announce that the Bureau of Indian Standards (BIS) has updated the Aviation Turbine Fuel (ATF) specification IS 1571 – Aviation Turbine Fuels, Kerosene Type, Jet A-1 to reference FIJI technology as an accepted method for monitoring FAME in jet fuel.
IP 583/ASTM D7797 are now:
- Listed as alternate methods for FAME content in Aviation Turbine Fuel
- Mandated at the process control test for unconverted fatty acid esters and fatty acids in co-processed sustainable aviation fuel (SAF)
FAME in Aviation Turbine Fuel
IS 1571 specifies that Fatty Acid Methyl Ester (FAME) contamination in ATF Jet A-1 must be controlled at very low levels, with a limit of 50 mg/kg and dedicated screening methods listed in the standard.
FIJI technology is now referenced by BIS as an alternative test method for FAME content. This recognition gives fuel producers, terminals and independent laboratories in India the flexibility to use FIJI for rapid screening of FAME carryover from multi-product pipelines, tanks and logistics operations, while remaining fully aligned with the national ATF specification.
Mandatory method for unconverted fatty acids
The newly issued Amendment No. 5 to IS 1571 introduces detailed provisions for co-processing renewable feedstocks alongside conventional petroleum feedstocks to produce co-processed semi-synthetic kerosene (SAF components).
Within the new Table 3 – Additional Requirements of Aviation Turbine Fuels Containing Co-processed Synthesised Kerosene, BIS sets a limit of 15 mg/kg for unconverted fatty acid esters and fatty acids and specifies IP 583/ASTM D7797 as the required process-control method.
This makes FIJI the mandatory analytical tool for confirming that co-processing conditions are sufficient to convert renewable feedstocks (mono-, di- and triglycerides, free fatty acids and fatty acid esters) into acceptable synthetic kerosene within the 15 mg/kg limit for any unconverted material.
FIJI – rapid, simple compliance
The FIJI JF – FAME in Jet Instrument SA5000-2 is a patented, fully automatic analyser designed specifically to provide a rapid, easy to use solution for measuring FAME in aviation turbine fuels using IP 583 and ASTM D7797.
- Certified range 10–150 mg/kg (ppm) FAME in jet fuel
- Analysis time 15 minutes using 50 mL sample
- No hydrocarbon cleaning solvents required
- Fully automatic operation
- Suitable for both laboratory and field use
- No specialist operator training is required
FIJI JF is uniquely positioned as a compliance ready solution for Aviation Turbine Fuel producers and users. Compared with more complex laboratory techniques, FIJI offers fast turnaround, minimal sample preparation and straightforward operation, making it ideal for:
- Routine batch release testing of ATF
- Pipeline and terminal checks where FAME carryover is a risk
- On-site or central lab screening of co-processed fuels before final blending and dispatch
Supporting India’s sustainable aviation fuel quality goals
By explicitly referencing FIJI based methods for both FAME contamination and unconverted fatty acids, BIS has aligned the ATF specification with global best practice and provided a clear framework for the introduction of co-processed SAF into India.
Stanhope-Seta’s FIJI instrument helps refiners, fuel suppliers and testing laboratories to:
- Demonstrate full compliance with IS 1571 and its latest amendment
- Safeguard fuel quality and protect aircraft systems from trace contaminants
- Confidently adopt SAF co-processing, supported by fast and reliable process-control data
Find out more
To learn how FIJI can support your compliance with the latest BIS ATF requirements, or to discuss integration into your refinery, terminal or laboratory, please get in touch with Stanhope-Seta or visit the FIJI JF – FAME in Jet Instrument product page.