Coal and coke — Determination of gross calorific value
This document specifies a method for the determination of the gross calorific value of a solid mineral fuel at constant volume and at the reference temperature of 25 °C in a combustion vessel calorimeter calibrated by combustion of certified benzoic acid.
The result obtained is the gross calorific value of the analysis sample at constant volume with all the water of the combustion products as…
Optics and photonics — Optical materials and components — Test method for striae in infrared optical...
This document specifies the principle, apparatus, condition, sample, procedure and data processing of measuring striae in infrared optical materials.
It is applicable to the determination of striae in infrared optical materials, such as infrared optical glass, which is opaque to visible wavelengths and whose transmission optical spectra are beyond 0,78 µm.
Information technology — General-Purpose Datatypes (GPD)
ISO/IEC 11404:2007 specifies the nomenclature and shared semantics for a collection of datatypes commonly occurring in programming languages and software interfaces, referred to as the General-Purpose Datatypes (GPD). It specifies both primitive datatypes, in the sense of being defined ab initio without reference to other datatypes, and non-primitive datatypes, in the sense of being wholly or…
Qualité de l'eau — Estimation de l'incertitude de mesure basée sur des données de validati...
La présente Norme internationale spécifie des méthodes pour l'estimation de l'incertitude de mesure des
méthodes chimiques et physicochimiques dans des laboratoires individuels, basée sur des données de
validation et sur les résultats du contrôle qualité analytique obtenus dans le domaine de l'analyse de l'eau.
NOTE 1 Les principes de l'estimation de l'incertitude de…
