LUBRICANT SPECIFICATIONS

Part One covering an Introduction to this Series, Standardising Bodies, SAE Classifications, etc., appeared in our June issue. Part Two covering Gear Oils and Turbine Oils appeared in July; Part Three, covering the Specifications issued by British Railways, in August; Part Four, covering Crankcase Oils for Internal Combustion Engines, in September; Part Five, covering Grease, in October, and Part Six, covering Cutting Oils and Refrigerator Oils, in January. This is the concluding article in this series, the first half of which, also dealing with temporary protectives, appeared in our February issue.