BS 7591-1:1992

Отменен

Porosity and pore size distribution of materials, Method of evaluation by mercury porosimetry — 16 стр.

Ссылочные документы

Заменен

Determination of the specific surface area of powders, BET method of gas adsorption for solids (including porous materials) — 16 стр.

Действует

Methods for determination of particle size distribution, Guide to powder sampling — 34 стр.