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MODUK - DEF STAN 91-101

Lubricating Oil, Gas Turbine Engine, Synthetic Grade 5 cSt NATO Code: 0-156 Joint Service Designation: OX-27 and OX-28

inactive
Organization: MODUK
Publication Date: 31 December 1997
Status: inactive
Page Count: 26
scope:

This Defence Standard specifies the requirements for one grade of synthetic lubricating oil intended primarily for use in aircraft gas turbine engines and relevant ancillary equipment.

Lubricating oil provided to this Standard shall possess satisfactory performance and properties when used in appropriate vehicles and/or turbines and ancillary equipment operated by the Crown

Document History

DEF STAN 91-101
August 31, 2001
Lubricating Oil, Gas Turbine Engine, Synthetic Grade 5 cSt NATO Code: O-156 Joint Service Designation: OX-27 and OX-28
This Defence Standard specifies the requirements for two grades of synthetic lubricating oils. Those oils which meet the requirements for OX-27 are intended primarily for use in aircraft gas turbine...
DEF STAN 91-101
August 31, 2001
Lubricating Oil, Gas Turbine Engine, Synthetic Grade 5 cSt NATO Code: O-156 Joint Service Designation: OX-27 and OX-28
This Defence Standard specifies the requirements for two grades of synthetic lubricating oils. Those oils which meet the requirements for OX-27 are intended primarily for use in aircraft gas turbine...
DEF STAN 91-101
December 31, 1997
Lubricating Oil, Gas Turbine Engine, Synthetic Grade 5 cSt NATO Code: 0-156 Joint Service Designation: OX-27 and OX-28
This Defence Standard specifies the requirements for one grade of synthetic lubricating oil intended primarily for use in aircraft gas turbine engines and relevant ancillary equipment. Lubricating...
DEF STAN 91-101
January 1, 1994
Lubricating Oil, Gas Turbine Engine, Synthetic Grade 5 cSt NATO Code: 0-156 Joint Service Designation: OX-27 and OX-28
A description is not available for this item.

References

This document references:
DEF STAN 05-50: PART 61 - Methods for Testing Fuels, Lubricants and Associated Products Part 61: Methods for Testing Gas Turbine Engine Synthetic Lubricants
Published by MODUK on April 25, 2003
This method describes a procedure for the determination of the confined heat stability of synthetic gas turbine lubricants in terms of volatilisation loss, viscosity, acidity and insolubles increase...
This document references:
ASTM D1298 - Standard Test Method for Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method
Published by ASTM on June 1, 2012
This test method covers the laboratory determination using a glass hydrometer in conjunction with a series of calculations, of the density, relative density, or API gravity of crude petroleum,...
This document references:
ASTM D2532 - Standard Test Method for Viscosity and Viscosity Change After Standing at Low Temperature of Aircraft Turbine Lubricants
Published by ASTM on May 1, 2017
This test method covers the determination of the kinematic viscosity of aircraft turbine lubricants at low temperature, and the percent change of viscosity after a 3 h and a 72 h standing period at...
This document references:
D445 - Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
November 1, 2023
This test method specifies a procedure for the determination of the kinematic viscosity, ν, of liquid petroleum products, both transparent and opaque, by measuring the time for a volume of liquid to...
This document references:
D892 - Standard Test Method for Foaming Characteristics of Lubricating Oils
October 1, 2023
This test method covers the determination of the foaming characteristics of lubricating oils at 24 °C and 93.5 °C. Means of empirically rating the foaming tendency and the stability of the foam are...
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