General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/Z 20423-2006
Scope
This guiding technical document specifies the procedures for measuring and inspecting the cleanliness level required for the assembled hydraulic system before leaving the factory.
GB/Z 20423-2006 Referenced Document
GB/T 17446 Fluid Transmission Systems and Components Glossary*, 2024-03-15 Update
GB/T 17489 Hydraulic fluid power—Particulate contamination analysis—Extraction of fluid samples from lines of an operating system*, 2022-10-12 Update
GB/T 20082 Hydraulic fluid power-Fluid contamination-Determination of particulate contamination by the counting method using an optical microscope
ISO 11500 Hydraulic fluid power — Determination of the particulate contamination level of a liquid sample by automatic particle counting using the light-extinction principle*, 2022-12-21 Update
GB/Z 20423-2006 history
2006GB/Z 20423-2006 Hydraulic fluid power. Assembled systems. Verification of cleanliness