Aciers et fontes — Détermination des teneurs en silicium — Méthode gravimétrique
Le présent document spécifie une méthode de détermination gravimétrique des teneurs en silicium dans les aciers et les fontes.
La méthode s'applique aux teneurs en silicium comprises entre 0,10 % (en masse) et 5,0 % (en masse).
NOTE Pour les échantillons contenant du molybdène, du niobium, du tantale, du titane, du tungstène, du zirconium ou de fortes teneurs en chrome, les résultats…
Steel and cast iron — Determination of silicon content — Gravimetric method
This document specifies a gravimetric method for the determination of the silicon content in steel and cast iron.
The method is applicable to silicon contents between 0,10 % (mass fraction) and 5,0 % {mass fraction).
NOTE For samples containing molybdenum, niobium, tantalum, titanium, tungsten, zirconium or high levels of chromium, the results are less accurate than for unalloyed matrixes.
High-voltage direct current (HVDC) systems - Application of active filters
IEC TR 62544:2011+A1:2016+A2:2020 gives general guidance on the subject of active filters for use in high-voltage direct current (HVDC) power transmission. It describes systems where active devices are used primarily to achieve a reduction in harmonics in the d.c. or a.c. systems. This excludes the use of automatically retuned components. The various types of circuit that can be used for active…
Courroies transporteuses légères — Détermination des résistances électriques
Le présent document spécifie des méthodes d'essai pour la détermination des résistances électriques des courroies transporteuses légères selon l'ISO 21183-1. Les résistances sont la résistance surfacique, la résistance volumique perpendiculaire au plan de la courroie et la résistance volumique transversale et longitudinale parallèle au plan de la courroie. Le présent document spécifie…
This document describes the application layer protocol including the application measurement and control data management, message transfer and fault management.
The application and application layer contain the following descriptions:
— message structure;
— communication method;
— network management (optional);
— measurement and control data; and
— error handling.
This…
Road vehicles — Clock extension peripheral interface (CXPI) — Part 3: Transport and network layer
This document specifies the OSI transport layer and network layer by means of services and protocols. They can be used by different applications.
The transport layer:
— transforms a message into a single packet;
— adds protocol control information for diagnostic and node configuration into each packet;
— adds packet identifier for diagnostic and node configuration into each packet;…
Control charts — Part 7: Multivariate control charts
This document describes the construction and use of multivariate control charts in statistical process control (SPC) and establishes methods for using and understanding this generalized approach to control charts where the characteristics being measured are from variables data.
The use of principal component analysis (PCA) and partial least squares (PLS) in the field of multivariate statistical…
Light conveyor belts — Determination of electrical resistances
This document specifies test methods for determining the electrical resistances of light conveyor belts according to ISO 21183‑1. The resistances are surface resistance, volume resistance perpendicular to the belt plane, and longitudinal and transverse volume resistance parallel to the belt plane. This document also specifies two test methods for determining the surface resistivity and the volume…
