POCKET BOOK_Final_Turned - Pall Corporation

Table 7. Cleanliness Requirement TotalCleanliness Requirement Total WeightingTotalSum of 'Actual' weighting from sections 1 through 6Using the chart below, determine where the 'Cleanliness Requirement Total Weighting' number from Table 7intersects the red line. Follow across to the left to find the recommended ISO 4406 Code.Table 8. Environmental WeightingEnvironment Examples Weighting ActualSingle MultipleFilter FiltersGood Clean areas, few ingression points, filtered fluid filling, airbreathers0 -1Fair General machine shops, some control over ingression points 1 0PoorMinimal control over operating environment and ingressionpoints e.g. on-highway mobile equipment)3 2Hostile Potentially high ingression (e.g. foundries, concrete mfg.,component test rigs, off-highway mobile equipment)5 4* Single filter or multiple filters with the same media grade on the system.Table 9. Required Filtration LevelFiltration Requirement Total WeightingAdd Environmental Weighting (Table 8) to Cleanliness Requirement Total (Table 7)Using the chart below, determine where the 'Required Filtration Level' total in Table 9 intersects the red line.Follow across to the right to find the corresponding recommended Pall filter grade.TotalISO 4406 Code †20/18/1519/17/1418/16/1317/15/1216/14/1115/13/1014/12/0913/11/0812/10/0711/09/0610/08/0509/07/0408/06/0307/05/0206/04/011011 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32ASANAPAZWeighting† Using on-line particle counting28