X-ray spectrometry - X-ray emission and X-ray fluorescence analysis (XRF) - Part 2: Definitions and basic principles for measurements, calibration and evaluation of results— 46 стр.
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.