GB/T 30508-2014 (English Version) PDF

Standard No.: GB/T 30508-2014
Language: Chinese, Available in English version
Release Date: 2014
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 30508-2014

Scope: This standard specifies the cleanliness and cleanliness level requirements for pipelines in hydraulic oil systems. The cleaning of the pipeline and accessory parts of the hydraulic oil pipeline system is very important to ensure the normal operation of the hydraulic system. This standard also specifies the cleaning methods and required equipment for special parts in hydraulic systems with accessories. The purpose of the cleaning work is to remove the pollutants left during the installation process, check the pipeline and ensure that the hydraulic system has sufficient cleanliness. When the Reynolds number Re≤3000, the cleaning process of the system is throughwashing; when the Reynolds number Re≥3000, the cleaning process of the system is flushing. The Reynolds number is an indicator of whether a fluid is laminar or turbulent. This standard assumes that the cleaning of hydraulic system piping can be partly pickled and partly mechanical. In addition, it is assumed that both moving and stationary components provided by the system supplier are sufficiently clean (see Chapter 5). Each product manufacturer has product cleanliness requirements and cleanliness guidelines, and the requirements in this standard are supplementary to them and cannot replace them. Where feasible, the manufacturer's product cleanliness requirements and cleaning guidelines are preferred.

GB/T 30508-2014 Referenced Document

GB/T 14039-2002 Hydraulic fluid power--Fluids--Method for coding the level of contamination by solid particles
GB/T 17489-1998 Hydraulic fluid power--Particulate contamination analysis--Extraction of fluid samples from lines of an operating system
GB/T 20110-2006 Hydraulic fluid power - Cleanliness of parts and components - Inspection document and principles related to contaminant collection, analysis and data reporting
GB/T 30507-2014 Ships and marine technology.Lubricating and hydraulic oil systems.Guidance for sampling to determine cleanliness and particle contamination
GB/T 3141-1994 Industrial liquid lubricants-ISO viscosity classification
GB/T 8923.1-2011 Preparation of steel substrates before application of paints and related products.Visual assessment of surface cleanliness.Part 1:Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coa

2014 GB/T 30508-2014 Ships and marine technology.Hydraulic oil systems.Guidance for grades of cleanliness and flushing