British Standards Document
BS 2000-346
Methods of test for petroleum and its products. Determination of polycyclic aromatics in unused lubricating base oils and asphaltene free petroleum fractions. Dimethyl sulphoxide extraction refractive index method
https://doi.org/10.3403/00833342U
BS 2000-346 is maintained by PTI/13. The current release of this standard is:
BS 2000-346:1996 Methods of test for petroleum and its products. Determination of polycyclic aromatics in unused lubricating base oils and asphaltene free petroleum fractions. Dimethyl sulphoxide extraction refractive index method
https://doi.org/10.3403/00833342 (published 15/07/1996)
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Other historical versions of this standard document also exist: