Petroleum products - Determination and application of precision data in relation to methods of test (ISO 4259:1992 + Cor 1:1993); German version EN ISO 4259:1995— 40 стр.
Petroleum products - Determination of aromatic hydrocarbon types in middle distillates - High performance liquid chromatography method with refractive index detection; German version EN 12916:2000— 14 стр.
Petroleum products - Determination of aromatic hydrocarbon types in middle distillates - High performance liquid chromatography method with refractive index detection; German version EN 12916:2000