Testing of mineral oils; determination of the phosphorus content in lubrication oils and additives, digestion procedure and photometric determination— 4 стр.
Testing of petroleum products; determination of the lead content (total lead) of gasolines with a mass concentration of lead from 4 up to 25 mg/l; wavelengthdispersive X-ray spectrometry (XRS)— 3 стр.
Testing of mineral oils; precision of test methods, general introduction, definitions and their application to mineral oil standards which contain requirements— 8 стр.