For determination of density of permeable sintered metal materials see ISO 2738. Specifies principle, apparatus, sampling, procedure, expression of results and test report. The two figures illustrate the weighing in water and the weighing in air.
ISO 3369:1975 history
2006ISO 3369:2006 Impermeable sintered metal materials and hardmetals - Determination of density
1975ISO 3369:1975 Impermeable sintered metal materials and hardmetals; Determination of density