11. Thus a relative density less than one means that the substance floats in water. 12. Methods used to calculate relative density are defined in ASTM D4254-00 ( 2006 ). 13. Relative density is normally determined by the loss of a sample's weight in water.14. Relative density with respect to air can be obtained by15. Its wood is finely textured, homogeneous, and moderately heavy ( relative density = 0.65 ). 16. The diffusive force is a function of the relative density inside the vessel and outside. 17. By definition, the relative density , ? rel, in open-porosity phase is lower than 90 %. 18. The relative density result is the dry sample weight divided by that of the displaced water. 19. The lithosphere is mantle; its weight is supported by the relative density of the surrounding rock. 20. The relative density ? against cosmic time " t " ( neither axis to scale ).
