GB/T 20082-2006 (English Version) PDF

Standard No.: GB/T 20082-2006
Language: Chinese, Available in English version
Release Date: 2006
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 20082-2006

Scope: WARNING: The application of this standard may involve hazardous materials, operations, and equipment. This standard does not address all safety issues related to use. It is the user's responsibility to ensure safe and healthy operation and to determine the limitations of the application before use. This standard specifies the method of counting the pollutant particles collected on the surface of the filter membrane using an optical microscope to determine the particle contamination degree of hydraulic system fluids, including the application of transmission or incident optical systems, manual particle counting and image analysis. . Particles with a size ≥ 2m can be counted by this method, but the resolution and accuracy of the results are related to the optical system used and the ability of the operator. The contamination level of all hydraulic system fluids can be analyzed according to this standard. In liquid samples with fine sediment or high particle concentration, if the filter volume is reduced to allow smaller size particles to be counted, it will increase. Uncertainty in counting large size particles.

GB/T 20082-2006 Referenced Document

GB 50073-2001 Code for design of clean room
GB/T 12804 Laboratory glassware.Graduated measuring cylinders *， 2011-12-30 Update
GB/T 14039-2002 Hydraulic fluid power--Fluids--Method for coding the level of contamination by solid particles
GB/T 17446 Fluid Transmission Systems and Components Glossary*， 2024-03-15 Update
GB/T 17484 Hydraulic fluid power--Fluid sample containers--Qualifying and controlling cleaning methods

2006 GB/T 20082-2006 Hydraulic fluid power-Fluid contamination-Determination of particulate contamination by the counting method using an optical microscope