Assertion: honeycomb's porosity | /r/HasProperty | 60 to 80%
Facets:
Source sentences:
text: A honeycomb catalyst structure according to any of  to , wherein a ratio (L/d) of equivalent diameter d and length L in central axis direction is 0.3 or more but less than 0.75, a cell density is 4 to 46.5 cells/cm2, a thickness of partition wall is 0.3 to 0.43 mm, an image maximum distance average is 250 to 500 μm, a porosity is 60 to 80%, and a standard deviation of the common logarithm of pore diameter distribution is 0.2 to 0.6.
text: μm, the porosity is 60 to 80% and the standard deviation of the common logarithm of pore diameter distribution is 0.2 to 0.6.