| http://www.w3.org/ns/prov#value | - er - Chemical tests - Determination of the free formaldehyde in process auxiliaries ISO 20369:2009 Material used for producing wrappings for cigarette filters, cigarettes and other tobacco products - Determination of citrate content ISO 20370:2009 Material used for producing wrappings for cigarette filters, cigarettes and other tobacco products - Determination of acetate content ISO 3308/Amd1:2009
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