MH/T 6084-2012Specification for aero and aero-derived gas turbine engine lubricants (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard was proposed by the Aircraft Airworthiness Certification Department of

the Civil Aviation Administration of China (CAAC).

This standard was approved for establishment by the Aircraft Airworthiness

Certification Department of the CAAC.

This standard shall be under the jurisdiction of the China Academy of Civil Aviation

Science and Technology.

Drafting organizations of this standard. Second Research Institute of the Civil Aviation

Administration of China, Chongqing Branch of Sinopec Lubricant Company.

Main drafters of this standard. Xia Zuxi, Liu Hua, Yang Zhiyuan, Su Zhenliang, Ma

Dechao, Zong Ming, Mei Li.

Specification for aero and aero-derived gas turbine engine

lubricants

1 Scope

This standard specifies the composition, technical requirements, and quality inspection

requirements for aero and aero-derived gas turbine engine lubricants (5 centistokes

grade) (hereinafter referred to as turbine engine lubricant).

This standard applies to the production of aero and aero-derived gas turbine engine

lubricants.

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) is

applicable to this standard.

ASTM D 92 Standard test method for flash and fire points by Cleveland open cup

tester

ASTM D 97 Standard test method for pour point of petroleum products

ASTM D 445 Standard test method for kinematic viscosity of transparent and

opaque liquids (and calculation of dynamic viscosity)

ASTM D 892 Standard test method for foaming characteristics of lubricating oils

ASTM D 972 Standard test method for evaporation loss of lubricating greases and

oils

ASTM D 2532 Standard test method for viscosity and viscosity change after

standing at low temperature of aircraft turbine lubricants

ASTM D 2603 Standard test method for sonic shear stability of polymer-containing

oils

Def Stan 05-50 Part 61.Method 9.Protection against oxidation stability

Def Stan 05-50 Part 61.Method 22.Method for evaluating the compatibility of gas

turbine engine lubricants with elastomers

Def Stan 05-50 Part 61.Method 24.Evaluation of the compatibility of mixtures of

base oils, additives, etc. in gas turbine engine lubricants

FED-STD-791 Method 3010 Solid particle contamination in aircraft turbine engine

lubricants (Gravimetric procedure)

FED-STD-791 Method 3410 High-temperature deposition and degradation

properties of aircraft turbine engine fuel

FED-STD-791 Method 3411 Thermal stability and corrosion resistance of aircraft

turbine engine lubricants

FED-STD-791 Method 3604 Swelling properties of synthetic rubber using aircraft

turbine engine lubricants

FED-STD-791 Method 5308 Corrosion resistance and oxidation stability of light

oils (Metal cube)

FED-STD-791 Method 6508 Load-carrying capacity of lubricants (Ryder gearbox)

SAE AIR 4978 Temporary methods for assessing the load carrying capacity of

aircraft propulsion system lubricating oils

SAE ARP 5088 Test method for the determination of total acidity in polyol ester and

diester gas turbine lubricants by automatic potentiometric titration

SAE ARP 5996 Evaluation of coking propensity of aviation lubricants using the

single phase flow technique

3 Terms and definitions

The following terms and definitions apply to this document.

3.1

Standard performance capability class

SPC

A type of lubricant that meets general usage requirements.

3.2

High performance capability class

HPC

A type of lubricant that meets engine operating conditions and/or service life

requirements, which is suitable for higher temperatures.

3.3

Batch

A group of base oils, additives, or finished lubricants that have undergone final

analysis and testing.

4 Composition

Turbine engine lubricants shall use polyol ester compounds as base oil and shall not

contain barium or titanium-based organic compounds. If tricresyl phosphate (TCP)

additives are used, the mass fraction of ortho-isomers shall not exceed 0.2%.

All chemical components of turbine engine lubricants shall comply with the laws,

regulations, environmental and toxicological requirements of the country of production

and sale; it shall have a Material Safety Data Sheet (MSDS) or other relevant

documentation to cover these requirements.

5 Technical requirements

The physical, chemical, stability, deposition, tribological properties of the turbine

engine lubricant shall meet the requirements of Tables 1 ~ 5, respectively. The items

listed in Appendix A can be included in the report.

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