Information and documentation. Permanence and durability of writing, printing and copying on paper. Requirements and test methods Ingestion-build-228203 Method B assesses the efficiency

Method B assesses the efficiency of any material claimed to have a liming effect

recycling and other recovery operations

Bulkhead unions ease the free flow of water

Marking and presentation

additional requirements can be necessary

Information and documentation. Permanence and durability of writing, printing and copying on paper. Requirements and test methods Ingestion-build-228203 Method B assesses the efficiency1 Scope This International Standard specifies requirements and test methods for evaluation of the permanence and durability of writing, printing and copying on paper stored in libraries, archives and other protected environments for long periods of time. It is applicable to images on paper with the exception of documents within the scope of ISO TC 42, Photography; multicoloured images. The information contents of multicoloured images should be