Determination of the specific surface area of solids by gas adsorption. BET method1 Scope This International Standard specifies the determination of the overall (see Note) specific external and internal surface area of disperse (e. g. nano powders) or porous solids by measuring the amount of physically adsorbed gas according to the Brunauer, Emmett and Teller (BET) method (see Reference [1]). It takes account of the International Union for Pure and Applied Chemistry (IUPAC) recommendations of 1984 and 1994 (see References [7][8]).

ISO 23500-1 is useful for-

and couplers for

The guidance is applicable to any organization regardless of location

5 V to earth) or a single-phase system at declared voltage up to 110 V (55 V to earth)

BS EN 13414-1:2003 specifies the construction requirements

What is ISO 125 about

This procedure measures the angular misalignment θ by measuring the tip image deviation of a pin gauge fitted into the ferrule bore as the ferrule is rotated around its axis

long-term clinical experience of the use of the material referred to in ISO 13779 has shown that an acceptable level of biological response can be expected

or the method specified ISO 16276-2 can be used

are given in an informative annex

In the “accessories” category covered by IEC technical committees 46 and 86

ISO 37156 on data exchange and sharing for smart community infrastructures is useful for: