Method of test for adhesion of aperture-card protection sheets / 
British Standards Institution. 
 - 4 pages :  illustrations ;  32cm. 
 - British standard ;  BS 6247 : 1982 .
 - British standard ;  BS 6247 : 1982 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microfilm aperture card systems.<br/>Pressure-sensitive adhesives.