Methods of test for petroleum and its products. Part 48, oxidation test for lubracating oil / British Standards Institution. - 3 pages ; 33cm. - British standard ; BS 2000 : PART 48 : 1982 . - British standard ; BS 2000 : PART 48 : 1982 . Subjects--Topical Terms: Lubricating oils--Great Britain.Petroleum--Oxidation--Great Britain.