Emission standard | At latest | Sulfur content | Cetane number |
---|---|---|---|
Euro 1 | 1 January 1993 | max. 2000 ppm | min. 49 |
Euro 2 | 1 January 1996 | max. 500 ppm | min. 49 |
Euro 3 | 1 January 2001 | max. 350 ppm | min. 51 |
Euro 4 | 1. January 2006 | max. 50 ppm | min. 51 |
Euro 5 | 1 January 2009 | max. 10 ppm | min. 51 |
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Diesel fuel or kerosene satisfies the dyeing requirement of this paragraph (b) only if the diesel fuel or kerosene contains— (1) The dye Solvent Red 164 (and no other dye) at a concentration spectrally equivalent to at least 3.9 pounds of the solid dye standard Solvent Red 26 per thousand barrels of diesel fuel or kerosene; or (2) Any dye of a type and in a concentration that has been approved by the Commissioner.Cited as 26 CFR 48.4082-1. This regulation implements 26 U.S.C.§ 4082-1.