NB/SH/T 6042-2021 Lubricant oil for electric vehicle reducer
1 Scope
This document specifies the product varieties, requirements, test methods, inspection rules, identification, packaging, transportation, storage and delivery acceptance of lubricant oils for electric vehicle reducers prepared with refined mineral oil, synthetic oil, or the mixture of the above both as base oil supplemented with various additives.
The products specified in this document are applicable to the first-speed reducer system of electric passenger vehicles, and are also applicable to the first-speed reducer system of extended-range electric vehicles.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 260 Test method for water in petroleum products - Distillation method
GB/T 265 Petroleum products - Determination of kinematic viscosity and calculation of dynamic viscosity
GB/T 507 Insulating liquids - Determination of the breakdown voltage at power frequency
GB/T 1995 Petroleum products - Calculation of viscosity index
GB/T 3142 Standard test method for determination of load-carrying capacity of lubricants - Four-ball method
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 Method for manual sampling of petroleum liquids
GB/T 5096 Test method for corrosiveness to copper from petroleum products by copper strip test
GB/T 5654 Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tanδ) and d.c. resistivity
GB/T 11145 Standard test method for measurement of low-temperature viscosity of lubricants - Brookfield viscometer method
GB/T 12579 Determination of foaming characteristics of lubricating oils
GB/T 17040 Determination of sulfur in petroleum and petroleum products - Energy dispersive X-ray fluorescence spectrometry
GB/T 17476 Standard test method for determination of additive elements, wear metals, and contaminants in used lubricating oils and determination of selected elements in base oils by inductively coupled plasma atomic emission spectrometry (ICP-AES)
NB/SH/T 0059 Standard test method for evaporation loss of lubricating oils by Noack method
NB/SH/T 0164 Petroleum and related products packaging, storage, transportation and acceptance of delivery rules
NB/SH/T 0704 Standard test method for nitrogen in petroleum and petroleum products by boat-inlet chemiluminescence
SH/T 0722 Standard test method for high temperature foaming characteristics of lubricating oils
NB/SH/T 0845 Determination of viscosity shear stability of transmission lubricants using the tapered roller bearing rig
NB/SH/T 0877 The evaluation of oil - elastomer compatibility
NB/SH/T 0944.1 Standard test method for wear preventive characteristics of lubricating fluid - FIE8 rolling bearing method - Part 1: Lubricating oil
NB/SH/T 0967 Packaged lubricant identification general rule
ASTM D7896 Standard test method for thermal conductivity, thermal diffusivity, and volumetric heat capacity of engine coolants and related fluids by transient hot wire liquid thermal conductivity method
ASTM E1269 Standard test method for determining specific heat capacity by differential scanning calorimetry
CEC L-48-00 Oxidation stability of lubricating oils used in automotive transmissions by artificial ageing
CEC L-84-02 FZG scuffing load carrying capacity test for high EP oils
3 Terms and definitions
No terms and definitions are listed in this document.
4 Product varieties
According to the motor cooling method, the products are classified into: lubricant oil for electric vehicle reducer with water-cooled motor and lubricant oil for electric vehicle reducer with oil-cooled motor.
5 Requirements and test methods
The technical requirements and test methods for lubricant oil for electric vehicle reducer with water-cooled motor and lubricant oil for electric vehicle reducer with oil-cooled motor shall be as specified in Tables 1 and 2 respectively.
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6 Inspection rules
6.1 Inspection classification
6.1.1 End-of-manufacturing inspections
End-of-manufacturing inspections include end-of-manufacturing batch inspection and end-of-manufacturing periodic inspection.
Foreword II
1 Scope
2 Normative references
3 Terms and definitions
4 Product varieties
5 Requirements and test methods
6 Inspection rules
7 Identification, packaging, storage, transportation, and delivery acceptance
