Standard No.:	GB/T 33540.4-2017
English Name:	Lubricants for wind turbine—Part 4:Hydraulic oils
Chinese Name:	风力发电机组专用润滑剂 第4部分：液压油
Chinese Classification:	E40    Synthetic grease
Professional Classification:	GB    National Standard
Issued by:	AQSIQ,SAC
Issued on:	2017-03-09
Implemented on:	2017-10-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	5000 words
Price(USD):	80.0
Delivery:	via email in 1 business day

1 Scope This part of GB/T 33540 specifies the product variety and designation, requirements and test methods, inspection rules and marking, packaging, transportation and storage of hydraulic oils for wind turbine. This standard is applicable to the hydraulic oils for hydraulic system of wind turbine such as brake system, transmission system and variable pitch system. 2 Normative References The following documents for the application of this document are essential. Any dated reference, just dated edition applies to this document. For undated references, the latest edition (including any amendments) applies to this document. GB/T 260 Determination of Water Content in Petroleum Products GB/T 265 Petroleum Products - Determination of Kinematic Viscosity and Calculation of Dynamic Viscosity 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

Foreword I 1 Scope 2 Normative References 3 Product Variety and Designation 4 Requirements and Test Methods 5 Inspection Rules 6 Marking, Packaging, Transportation and Storage