Methods of test for petroleum and its products.  Part 163.  Sulphated ash from lubricating oils and additives / 
 British standard methods of test for petroleum and its products  Sulphated ash from lubricating oils and additives 
British Standards Institution 
 - 4 leaves :  illustrations ;  30 cm. 
 - British standard ;  BS 2000 : Part 163 : 1982 .
 - British standard ;  BS 2000 : Part 163 : 1982 .
<br/><br/><label>ISBN: </label>0580125734 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Standards, Engineering--Great Britain