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GB/T 33540.4-2017 (GB/T33540.4-2017)

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GB/T 33540.4-2017: PDF in English (GBT 33540.4-2017)
GB/T 33540.4-2017
GB
NATIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 75.100
E 40
Lubricants for wind turbine - Part 4. Hydraulic oils
ISSUED ON. MARCH 09, 2017
IMPLEMENTED ON. OCTOBER 01, 2017
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Product variety and identification ... 6 
4 Requirements and test methods ... 6 
5 Inspection rules ... 8 
6 Marking, packaging, transportation and storage ... 9 
Lubricants for wind turbine - Part 4. Hydraulic oils
1 Scope
This part of GB/T 33540 specifies the product variety and identification,
requirements and test methods, inspection rules, marking, packaging,
transportation and storage of hydraulic oil for wind turbines.
This part applies to the hydraulic oils used in such hydraulic systems as
braking, transmission and pitching for wind turbines.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this Standard.
GB/T 260 Petroleum products - Determination of water
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 point and fire point -
Cleveland open cup method
GB/T 4756 Method for manual sampling of petroleum liquids
GB/T 4945 Standard test method for acid and base number of petroleum
products and lubricants by color indicator titration
GB/T 5096 Petroleum products - Test method for copper strip corrosion
GB/T 6540 Petroleum products - Determination of color
GB/T 7304 Standard test method for acid number of petroleum products by
potentiometric titration
GB/T 7305 Standard test method for water separability of petroleum oils and
synthetic fluids
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
GB/T 14832 Test methods for compatibility between hydraulic fluids and
standard elastomeric materials
DL/T 432 Determination of particulate contamination in oil
NB/SH/T 0306 Assessment for bearing capacity of lubricating oil - FZG
visual observation
NB/SH/T 0870 Determination of dynamic viscosity and density of petroleum
products as well as calculation of kinematic viscosity - Stabinger Viscometer
SH/T 0103 Standard test method for shear stability of polymer containing
fluids using a European diesel injector apparatus
SH 0164 Petroleum products - Rules for packaging, storage, transportation
and handover acceptance
SH/T 0209 Determination of thermal stability of hydraulic oil
SH/T 0210 Hydraulic oil filterability test method
SH/T 0301 Determination method for hydrolytic stability of hydraulic liquid
(Glass bottle method)
The type inspection is carried out in the following cases.
a) In case of new product putting into production or product finalization
authentication;
b) In case of major changes of raw materials, processes and so on that may
affect the product quality;
c) In case of major difference between the exit-factory inspection results and
the last type inspection results.
5.2 Batching
Under the conditions that the raw material and process are not changed, each
can or kettle of products is deemed as a group (batch).
5.3 Sampling
CONDUCT sampling in accordance with GB/T 4756, AND the sampling
volume shall comply with the volume requirements for the samples for
exit-factory inspection or type inspection and reservation.
5.4 Judgment rules
If the exit-factory inspection results and the type inspection results comply with
the technical requirements of Chapter 4, this batch of products shall be
deemed as qualified.
5.5 Re-inspection rules
If there is an item of exit-factory inspection and type inspection failing to
comply with the technical requirements of Chapter 4, FOLLOW the
requirements of GB/T 4756 to re-take double number of samples for the
purposes of re-inspection. If the re-inspection results still fail to comply with the
technical requirements in Chapter 4, this batch of products will be deemed as
disqualified.
6 Marking, packaging, transportation and storage
The marking, packaging, transportation and storage, and handover
acceptance of this product shall follow the requirements of SH 0164.
......
 
(Above excerpt was released on 2017-05-27, modified on 2021-06-07, translated/reviewed by: Wayne Zheng et al.)
Source: https://www.chinesestandard.net/PDF.aspx/GBT33540.4-2017