Norm

NEN-EN-ISO 9241-210:2010 en

Ergonomie van de mens-systeeminteractie - Deel 210: Op de mens gericht ontwerp voor interactieve systemen

124,99

Over deze norm

Status Definitief
Aantal pagina's 32
Gepubliceerd op 01-10-2010
Taal Engels
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. The BET method is applicable only to adsorption isotherms of type II (disperse, nonporous or macroporous solids) and type IV (mesoporous solids, pore diameter between 2 nm and 50 nm). Inaccessible pores are not detected. The BET method cannot reliably be applied to solids which absorb the measuring gas. A strategy for specific surface area determination of microporous materials (type I isotherms) is described in Annex C.

Details

ICS-code 13.180
35.180
Nederlandse titel Ergonomie van de mens-systeeminteractie - Deel 210: Op de mens gericht ontwerp voor interactieve systemen
Engelse titel Ergonomics of human-system interaction - Part 210: Human-centred design for interactive systems
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