secondary reference fuel

secondary reference fuel

[′sek·ən‚der·ē ′ref·rəns ‚fyül]
(materials)
A commercially produced internal combustion engine fuel which is acceptable for knock testing or cetane rating, and which has been calibrated against primary reference fuels by engine tests.
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References in periodicals archive ?
Tenders are invited for Secondary reference fuel and high check fuel for cfr cetane engine
Secondary reference fuel (SRF) was procured from Chevron-Phillips.
Secondary reference fuels were also evaluated as part of the IQT developments.
Thus, the objective of this paper is to look at primary and secondary reference fuels at the limits of the cetane scale (very low and very high).