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  • BSI
    BS ISO 15901-1:2016 Evaluation of pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption - Mercury porosimetry
    Edition: 2016
    $411.69
    / user per year

Description of BS ISO 15901-1:2016 2016

This International Standard describes a method for the evaluation of the pore size distribution and the specific surface area of pores in solids by mercury porosimetry according to the method of Ritter and Drake [1] [2] . It is a comparative test, usually destructive due to mercury contamination, in which the volume of mercury penetrating a pore or void is determined as a function of an applied hydrostatic pressure, which can be related to a pore diameter.

Practical considerations presently limit the maximum applied absolute pressure to about 400 MPa (60 000 psi) corresponding to a minimum equivalent pore diameter of approximately 4 nm. The maximum diameter is limited for samples having a significant depth due to the difference in hydrostatic head of mercury from the top to the bottom of the sample. For the most purposes, this limit can be regarded as 400 µm. The measurements cover inter-particle and intra-particle porosity. In general, without additional information from other methods it is difficult to distinguish between these porosities where they co-exist. The method is suitable for the study of most porous materials non-wettable by mercury. Samples that amalgamate with mercury, such as certain metals, e.g. gold, aluminium, copper, nickel and silver, can be unsuitable with this technique or can require a preliminary passivation. Under the applied pressure some materials are deformed, compacted or destroyed, whereby open pores may be collapsed and closed pores opened. In some cases it may be possible to apply sample compressibility corrections and useful comparative data may still be obtainable. For these reasons, the mercury porosimetry technique is considered to be comparative.



Standard NumberBS ISO 15901-1:2016
TitleEvaluation of pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption - Mercury porosimetry
StatusConfirmed
Publication Date2016-04-30
ReplacesBS ISO 15901-1:2005
Identical National Standard OfISO 15901-1:2016
DescriptorsTesting conditions, Calibration, Solids, Mercury, Porous materials, Porosity measurement, Pressure testing, Test specimens, Volume measurement
ICS19.120 Particle size analysis. Sieving
CommitteeLBI/37
ISBN978 0 580 81558 4
PublisherBSI
Pages30

The following editions for this book are also available...

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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