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Journal of Applied Chemistry, 1957 AbstractMeasurements of specific surface areas of nineteen powders of various chemical and physical types have been made (a) by adsorption of nitrogen on to the powders at 77° K and (b) by the air‐permeability method described by Rigden.The results obtained by the two methods were appreciably different, the areas obtained by the adsorption method being
D H Mathews
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An improved method of preparing materials for measurement of specific surface by air‐permeability
Journal of Applied Chemistry, 1959 T. Hughes
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Specific-Surface Determination of Nitroguanidine by Microscopic and Air-Permeability Methods
Analytical Chemistry, 1955 A. S. Bass, H. M. Sternberg
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, 2008 The effectiveness of aerobic biodegradation of organic matter during composting and the stability or maturity of the end product particularly depend on the initial physical characteristics of the waste. On one hand, the accessibility of the micro-organisms to the biodegradable organic matter present within the waste is influenced by physical parameters.
Druilhe, C. +4 more
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Determination of the specific surface area of powders. Recommended air permeability methods
, 2014 openaire +2 more sources