Lubrication Oil Filters’ Inspection Standard- HS/QF 4216-2018
1. General The standard of HS/QF 4216-2018 is issued according to national standard CB/T 4216-2013 and replaces its terms. The main material of the tested filter is the filter house, and the filter frame was made of cast aluminum used for industrial oil. The element, the filter mesh, is made of industrial wire-woven hole screen; [...]