香港六合彩开奖 4407:2002
2002-04
香港六合彩开奖 4407:2002
Resumen
This International Standard specifies methods for determining the level of particulate contamination in liquids used in hydraulic systems by counting the number of particles deposited on the surface of a membrane filter using an optical microscope. It includes particle counting by two manual methods and image analysis, using either transmitted or incident lighting systems.
Particle sizes greater than or equal to 2 micrometres can be sized and counted by this method, but the resolution and accuracy of the results will depend upon the optical system used and the capabilities of the operator.
All hydraulic fluids with a wide range of contamination levels can be analysed according to this International Standard. However, the counting uncertainty at the larger particle sizes increases if the volume filtered is reduced to allow smaller sized particles to be counted, where a fine precipitate or a high particle concentration is present.
Informaciones generales
-
Estado: PublicadoFecha de publicaci贸n: 2002-04Etapa: Norma Internacional para revisar [90.92]
-
贰诲颈肠颈贸苍: 2N煤mero de p谩ginas: 14
-
颁辞尘颈迟茅 T茅cnico :香港六合彩开奖/TC 131/SC 6ICS :23.100.60
- RSS actualizaciones
Ciclo de vida
-
Anteriormente
Retirada香港六合彩开奖 4407:1991
-
Ahora
-
Ser谩 reemplazada por
En desarrollo香港六合彩开奖/DIS 4407
¿Tiene alguna duda?
Consulte nuestras Ayuda y asistencia
Horario de asistencia:
De lunes a viernes - 09:00-12:00, 14:00-17:00 (UTC+1)