Search Results

Standard

Test Method for the Determination of Water Concentration in Polyol Ester and Diester Aerospace Lubricants by Coulometric Karl Fischer Titration

2022-11-02

CURRENT

ARP5991A

The test method describes the procedure for the direct determination of water concentration in polyol ester and diester based aerospace lubricants by commercially available automated coulometric Karl Fischer titration instruments. The method was validated to cover the water concentration range of 150 to 3500 µg/g. The method may also be suitable for the determination of water concentrations outside this range and for other classes of fluids; however, the precision statement shall not be applicable for such uses.

Standard

Test Method for the Determination of Water Concentration in Polyol Ester and Diester Aerospace Lubricants by Coulometric Karl Fischer Titration

2016-09-12

HISTORICAL

ARP5991

The test method describes the procedure for the direct determination of water concentration in polyol ester and diester based aerospace lubricants by the commercially available automated coulometric Karl Fischer titration instrument. The method was validated to cover the water concentration range of 150 to 3500 µg/g. The method may also be suitable for the determination of water concentrations outside this range and for other classes of fluids, however, the precision statement shall not be applicable for such uses.

Standard

Test Method for the Determination of Total Acidity in Polyol Ester and Diester Gas Turbine Lubricants by Automatic Potentiometric Titration

2014-07-08

HISTORICAL

ARP5088B

The test method describes the procedure for determination of the total acid number of new and degraded polyol ester and diester based gas turbine lubricants by potentiometric titration technique. The method was validated to cover an acidity range 0.05 to 6.0 mg KOH g-1. The method may also be suitable for the determination of acidities outside of this range and for other classes of lubricant.

Standard

Test Method for the Determination of Total Acidity in Polyol Ester and Diester Gas Turbine Lubricants by Automatic Potentiometric Titration

2006-11-01

HISTORICAL

ARP5088A

The test method describes the procedure for determination of the total acid number of new and degraded polyol ester and diester based gas turbine lubricants by potentiometric titration technique. The method was validated to cover an acidity range 0.05 to 6.0 mg KOH g-1. The method may also be suitable for the determination of acidities outside of this range and for other classes of lubricant.

Standard

Test Method for the Determination of Total Acidity in Polyol Ester and Diester Gas Turbine Lubricants by Automatic Potentiometric Titration

2024-03-18

CURRENT

ARP5088C

The test method describes the procedure for determination of the total acid number (TAN) of new and degraded polyol ester and diester-based gas turbine lubricants by the potentiometric titration technique. The method was validated to cover an acidity range of 0.05 to 6.0 mg KOH g-1. The method may also be suitable for the determination of acidities outside of this range and for other classes of lubricants.

Standard

Temporary Methods for Assessing the Load Carrying Capacity of Aircraft Propulsion System Lubricating Oils

2002-05-08

HISTORICAL

AIR4978B

To present methods which, according to the consensus of the aviation propulsion community represented by SAE Committee E-34, allow the continued assessment of load carrying capacity of current chemistry products during periods of limited or nonavailability of previously used standardized methods.

Standard

Temporary Methods for Assessing the Load Carrying Capacity of Aircraft Propulsion System Lubricating Oils

1997-12-01

HISTORICAL

AIR4978A

To present methods which, according to the consensus of the aviation propulsion community represented by SAE Committee E-34, allow the continued assessment of load carrying capacity of current chemistry products during periods of limited or nonavailability of previously used standardized methods.

Standard

TEST METHOD FOR THE DETERMINATION OF TOTAL ACIDITY IN POLYOL ESTER AND DIESTER GAS TURBINE LUBRICANTS BY AUTOMATIC POTENTIOMETRIC TITRATION

1998-01-01

HISTORICAL

ARP5088

The test method describes the procedure for determination of the total acid number of new and degraded polyol ester and diester based gas turbine lubricants by potentiometric titration technique. The method was validated to cover an acidity range 0.05 to 6.0 mg KOH g-1. The method may also be suitable for the determination of acidities outside of this range and for other classes of lubricant.

Standard

TEMPORARY METHODS FOR ASSESSING THE LOAD CARRYING CAPACITY OF AIRCRAFT PROPULSION SYSTEM LUBRICATING OILS

1996-04-01

HISTORICAL

AIR4978

To present methods which, according to the consensus of the aviation propulsion community represented by SAE Committee E-34, allow the continued assessment of load carrying capacity of current chemistry products during periods of limited or nonavailability of previously used standardized methods.

Standard

Minisimulator Method

2022-02-11

WIP

ARP6166A

This test method is designed to simulate the synergistic combinations of oil flow, temperature cycling, hot spots, and tribology that would typically be found in a gas turbine engine. The method is intended to quantitatively characterize changes in four basic oil properties that are brought about by exposure to the afore mentioned simulated turbine engine environment: the tendency of aviation lubricants to form coke deposits, viscosity changes, total acid number changes (TAN), and oil consumption.

Standard

Minisimulator Method

2016-09-12

CURRENT

ARP6166

This test method is designed to simulate the synergistic combinations of oil flow, temperature cycling, hot spots, and tribology that would typically be found in a gas turbine engine. The method is intended to quantitatively characterize changes in four basic oil properties that are brought about by exposure to the afore mentioned simulated turbine engine environment: the tendency of aviation lubricants to form coke deposits, viscosity changes, total acid number changes (TAN), and oil consumption.

Standard

Management of Change Considerations for Aero Gas Turbine Engine Lubricants Under AS5780

2019-12-02

CURRENT

AIR6918

The intent is to provide a reference which explains the types of possible changes to AS5780 products and provide appropriate context to the QPG. All product change requests to the QPG will be evaluated on their merits recognizing the content of this AIR is guidance only.

Standard

Fluid, Reference for Testing AS5780 HPC Class (Polyol) Resistant Material (Also known as Eastman Reference Oil 300)

2016-05-04

HISTORICAL

AMS3085A

This specification covers a neopentyl polyol ester fluid (see 8.2) with AS5780 HPC or MIL-PRF-23699 HTS Class performance.

Standard

Fluid, Reference for Testing AS5780 HPC Class (Polyol) Resistant Material

2007-10-29

HISTORICAL

AMS3085

This specification covers a neopentyl polyol ester fluid (See 8.2) with AS5780 HPC or MIL-PRF-23699 HTS Class performance.

Standard

Evaluation of Coking Propensity of Aviation Lubricants Using the Single Phase Flow Technique

2020-09-02

WIP

ARP5996D

This method is designed to evaluate the coking propensity of synthetic ester-based aviation lubricants under single phase flow conditions found in certain parts of gas turbine engines, for instance in bearing feed tubes. This method is applicable to lubricants with a coking propensity, as determined by this method, falling in the range 0.01 to 5.00 mg.

Standard

Evaluation of Coking Propensity of Aviation Lubricants Using the Single Phase Flow Technique

2014-01-02

HISTORICAL

ARP5996B

This method is designed to evaluate the coking propensity of synthetic ester-based aviation lubricants under single phase flow conditions found in certain parts of gas turbine engines, for instance in bearing feed tubes. This method is applicable to lubricants with a coking propensity, as determined by this method, falling in the range 0.01 to 3.00 mg.

Standard

Evaluation of Coking Propensity of Aviation Lubricants Using the Single Phase Flow Technique

2015-12-17

CURRENT

ARP5996C

This method is designed to evaluate the coking propensity of synthetic ester-based aviation lubricants under single phase flow conditions found in certain parts of gas turbine engines, for instance in bearing feed tubes. This method is applicable to lubricants with a coking propensity, as determined by this method, falling in the range 0.01 to 5.00 mg.

Standard

Evaluation of Coking Propensity of Aviation Lubricants Using the Hot Liquid Process Simulator (HLPS) Single Phase Flow Technique

2003-01-11

HISTORICAL

ARP5996

This method is designed to evaluate the coking propensity of synthetic ester-based aviation lubricants under single phase flow conditions found in certain parts of gas turbine engines, for instance in bearing feed tubes. This method is applicable to lubricants with a coking propensity, as determined by this method, falling in the range 0.01 to 3.00 mg.

Standard

Evaluation of Coking Propensity of Aviation Lubricants Using the Hot Liquid Process Simulator (HLPS) Single Phase Flow Technique

2003-07-03

HISTORICAL

ARP5996A

This method is designed to evaluate the coking propensity of synthetic ester-based aviation lubricants under single phase flow conditions found in certain parts of gas turbine engines, for instance in bearing feed tubes. This method is applicable to lubricants with a coking propensity, as determined by this method, falling in the range 0.01 to 3.00 mg.

Standard

Compatibility of Turbine Lubricating Oils

2023-05-01

CURRENT

ARP7120

This method is used for determining the compatibility of a candidate lubricant with specific reference lubricants. The reference lubricants to be used will typically be mandated by the owner of the product specification against which the candidate lubricant is being compared. This method is split into two procedures (Procedure A and Procedure B) with a summary of each procedure contained in Section 4.