Methods for the sampling of iron, steel, permanent magnet alloys and ferro-alloys / 
British Standards Institution. 
 - 19 pages :  illustrations ;  23cm. 
 - British standard ;  BS 1837 : 1970 .
 - British standard ;  BS 1837 : 1970 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Metal products--Specifications.<br/>Alloys--Analysis.