Petroleum products. Determination of ash/  ISO 6245, 
UNIT 
 - 3ra.ed 
 - Ginebra:  ISO,  2001 
 - 10 p.:  tab 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PETRÓLEO<br/>NORMAS TÉCNICAS<br/>ISO 6245--2001
<br/><br/><label>Dewey Class. No.: </label>ISO 6245