Detail of GB 11118.1-2011

Introduction of GB 11118.1-2011

Hydraulic fluids of L-HL, L-HM, L-HV, L-HS and L-HG type WARNING: The production, handling and use of products as specified in this standard may be hazardous, if suitable precautions are not observed. This standard does not purport to address all of the safety problems associated with the product. It is the responsibility of the user of this standard to establish appropriate safety and protective practices and determine the applicability of regulatory limitations prior to use. 1 Scope This standard specifies the classification and labeling, requirements and test methods, inspection rules, and marking, packaging, transportation and storage of hydraulic fluids of L-HL, L-HM (high-pressure), L-HM (general), L-HV, L-HS and L-HG type. This standard is applicable to hydraulic fluids intended for hydrostatic hydraulic systems. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 260 Petroleum products - Determination of water GB/T 261 Determination of flash point - Pensky-Martens closed cup method GB/T 264 Petroleum products - Determination of acid number GB/T 265 Petroleum products - Determination of kinematic viscosity and calculation of dynamic viscosity GB/T 511 Petroleum products and additives - Determination of mechanical impurities - Gravimetric method GB/T 1884 Crude petroleum and liquid petroleum products - Laboratory determination of density - Hydrometer method GB/T 1885 Petroleum measurement tables GB/T 1995 Petroleum products - Calculation of viscosity index GB/T 2433 Petroleum products - Lubricating oils and additives - Determination of sulphated ash GB/T 2541 Petroleum products - Computation table for viscosity indices GB/T 3141 Industrial liquid lubricants - ISO viscosity classification GB/T 3535 Petroleum products - Determination of pour point GB/T 3536 Petroleum products - Determination of flash and fire points - Cleveland open cup method GB/T 4756 Petroleum liquids - Manual sampling GB/T 4945 Standard test method for acid and base number of petroleum products and lubricants by colour-indicator titration GB/T 5096 Petroleum products - Corrosiveness to copper - Copper strip test GB/T 6540 Petroleum products - Determination of colour GB/T 7304 Petroleum products and lubricants - Determination of acid number - Potentiometric titration method GB/T 7305 Standard test method for water separability of petroleum oils and synthetic fluids GB/T 7631.2 Lubricants, industrial oils and related products (class L) - Classification - Part 2: Family H (hydraulic systems) GB/T 8021 Petroleum products - Determination of saponification number GB/T 11133 Liquid petroleum products - Determination of water - Karl Fischer reagent method GB/T 11143 Standard test method for rust-preventing characteristics of inhibited mineral oil in the presence of water GB/T 12579 Determination of foaming characteristics of lubricating oils GB/T 12581 Standard test method for oxidation characteristics of inhibited mineral oils GB/T 14039 Hydraulic fluid power - Fluids - Method for coding the level of contamination by solid particles DL/T 432 Determination of particulate contamination in oil SH/T 0103 Standard test method for shear stability of polymer containing fluids using an European diesel injector apparatus SH 0164 Rules for packaging, storage, transportation and delivery of petroleum products SH/T 0189 Determination of anti-wear performance of lubricating oil (four-ball machine method) SH/T 0209 Determination of thermal stability of hydraulic oil SH/T 0210 Filterability test method of hydraulic oil SH/T 0301 Determination of hydrolysis stability of hydraulic fluid (glass bottle method) SH/T 0305 Method for determination of seal compatibility index of petroleum products SH/T 0306 Lubricant bearing capacity test method (CL-100 gear machine method) SH/T 0307 Determination of wear characteristics of petroleum-based hydraulic oil (vane pump method) SH/T 0308 Method for determination of air release value of lubricating oil SH/T 0361 Slide ways oil SH/T 0565 Standard test method for determination of the sludging tendencies of inhibited mineral oils SH/T 0604 Crude petroleum and petroleum products - Determination of density - Oscillating U-tube method SAE J 745 Hydraulic power pump test procedure NAS 1638 Cleanliness requirements of parts used in hydraulic systems   3 Classification and labeling 3.1 Product classification According to GB/T 7631.2, this standard classifies hydraulic fluids into five categories: L-HL anti-oxidation and anti-rust hydraulic fluids, L-HM anti-wear hydraulic fluids (high-pressure and general), L-HV low-temperature hydraulic fluids, L-HS ultra-low temperature hydraulic fluids, and L-HG hydraulic slide ways fluids. 3.2 Product labeling Hydraulic fluids are labeled as: Category code Viscosity grade Product name Standard No. Example: L-HL 46 Anti-oxidation and anti-rust hydraulic fluids GB 11118.1; L-HM 46 Anti-wear hydraulic fluids (high-pressure) GB 11118.1; L-HM 46 Anti-wear hydraulic fluids (general) GB 11118.1; L-HV 46 Low-temperature hydraulic fluids GB 11118.1; L-HS 46 Ultra-low temperature hydraulic fluids GB 11118.1; L-HG 46 Hydraulic slide ways fluids GB 11118.1. 4 Requirements and test methods The technical requirements and test methods for each category of hydraulic fluids are shown in Tables 1 to 5 respectively.

Contents of GB 11118.1-2011

Foreword II 1 Scope 2 Normative references 3 Classification and labeling 3.1 Product classification 3.2 Product labeling 4 Requirements and test methods 5 Inspection rules 5.1 Inspection classification and items 5.1.1 End-of-manufacturing inspection 5.1.2 Type inspection 5.2 Batching 5.3 Sampling 5.4 Judgment rules 5.5 Re-inspection rules 6 Marking, packaging, transportation and storage Annex A (Normative) Evaluation of hydraulic fluids performance - T6H20C double pump test method A.1 Scope A.2 Method summary A.3 Test apparatus A.4 Description of test stages A.4.1 Stage I A.4.2 Stage II A.4.3 Steps for adding water A.4.4 Fluid-water separation A.5 Test preparation A.6 Break-in procedure A.7 Test procedure A.8 Test measurement A.9 Test result analysis A.9.1 Vane pump A.9.2 Piston pump A.9.3 Measurement values and graphs A.10 Reference fluid test Annex B (Informative) Main differences between this standard and GB 11118.1-1994