ISO 5351
Limiting viscosity of pulp is a key product parameter both for final product QC testing and for product specification for the purpose of international commodity trading. ISO 5351:2010 is currently the most widespread test procedure for pulp viscosity. Before embarking on introducing this test in the laboratory, we recommend purchasing the test method document from the ISO webstore. Based on this document, it will be possible to device a robust and fit for purpose Standard Operating Procedure for the pulp testing. ISO 5351:2010 may be purchased here: https://www.iso.org/obp/ui/#iso:std:iso:5351:ed-2:v1:en