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MODUK - DEF STAN 91-025

Lubricating Oil, Gear, Naval: Light Service NATO Code: O-240 Joint Service Designation: OM-100

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Organization: MODUK
Publication Date: 14 December 2019
Status: active
Page Count: 18
scope:

This Defence Standard (Def Stan) 91-025 specifies requirements for one grade of Lubricating Oil for use in lightly loaded applications. Primarily for use on Her Majesty (HM) Ships forced Lubrication Systems and their associated Gearing, certain other Marine Gearboxes, for general Mechanical Lubrication and in certain Hydraulic applications.

Document History

DEF STAN 91-025
December 14, 2019
Lubricating Oil, Gear, Naval: Light Service NATO Code: O-240 Joint Service Designation: OM-100
This Defence Standard (Def Stan) 91-025 specifies requirements for one grade of Lubricating Oil for use in lightly loaded applications. Primarily for use on Her Majesty (HM) Ships forced Lubrication...
DEF STAN 91-025
October 28, 2018
Lubricating Oil, Gear, Naval: Light Service NATO Code: O-240 Joint Service Designation: OM-100
This Defence Standard (Def Stan) 91-025 specifies requirements for one grade of Lubricating Oil for use in lightly loaded applications. Primarily for use on Her Majesty (HM) Ships forced Lubrication...
DEF STAN 91-25
December 27, 2002
Lubricating Oil, Gear, Naval: Light Service NATO Code: O-240 Joint Service Designation: OM-100
This standard specifies the requirements for one grade of lubricating oil for use in lightly loaded applications. Primarily for use on HM Ships, in forced lubrication systems and their associated...
DEF STAN 91-25
December 19, 1997
Lubricating Oil, Steam Turbine and Gear: Light Service NATO Code No: O-240 Joint Service Designation: OM-100
This Defence Standard specifies the requirements for one grade of lubricating oil for use in steam turbines and their associated gearing, certain other marine gearboxes, general mechanical...
DEF STAN 91-25
January 1, 1984
Lubricating Oil, Steam Turbine and Gear: Light Service NATO Code No: 0-240 Joint Service Designation: OM-100
This standard relates to one grade of lubricating oil for use in steam turbines and their associated gearing, general mechanical lubrication, and certain hydraulic systems in ships

References

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 D130 - Standard Test Method for Corrosiveness to Copper from Petroleum Products by Copper Strip Test
Published by ASTM on May 1, 2019
This test method covers the determination of the corrosiveness to copper of aviation gasoline, aviation turbine fuel, automotive gasoline, cleaners (Stoddard) solvent, kerosine, diesel fuel,...
This document references:
D1401 - Standard Test Method for Water Separability of Petroleum Oils and Synthetic Fluids
October 1, 2021
This test method covers measurement of the ability of petroleum oils or synthetic fluids to separate from water. Although developed specifically for steam-turbine oils having viscosities of 28.8...
This document references:
ASTM D2270 - Standard Practice for Calculating Viscosity Index from Kinematic Viscosity at 40°C and 100°C
Published by ASTM on October 1, 2010
This practice2 covers the procedures for calculating the viscosity index of petroleum products, such as lubricating oils, and related materials from their kinematic viscosities at 40 °C and 100 °C....
This document references:
D2272 - Standard Test Method for Oxidation Stability of Steam Turbine Oils by Rotating Pressure Vessel
April 1, 2022
This test method2 utilizes an oxygen-pressured vessel to evaluate the oxidation stability of new and in-service turbine oils having the same composition (base stock and additives) in the presence of...
This document is referenced by:
DEF STAN 01-005 - Fuels, Lubricants and Associated Products
Published by MODUK on February 14, 2020
This Def Stan provides guidance on the characteristics and uses of fuels, lubricants and associated products for the MOD.
This document is referenced by:
DEF STAN 47-032 - Rubber Hose and Hose Assemblies for Fluid Power Systems
Published by MODUK on February 14, 2019
This Defence Standard (Def Stan 47-032) specifies the requirements, for Material Performance Type Testing, Manufacture and Production Testing of wire braided rubber hose to operate over a temperature...
This document is referenced by:
DEF STAN 47-033 - Thermoplastic / PTFE Hose Assemblies
Published by MODUK on July 28, 2020
This Defence Standard (Def Stan 47-033) specifies the requirements, for Material Performance Type Testing, Manufacture and Production Testing of wire or synthetic reinforced hose to operate over a...
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