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MODUK - DEF STAN 91-074

Lubricating Oil, Steam Turbine and Gear, Extreme Pressure Joint Service Designation: OEP-80

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Organization: MODUK
Publication Date: 28 October 2018
Status: active
Page Count: 18
scope:

This method describes an outline procedure for estimating the total area of Micro-Pitting (grey staining) on all the teeth of a pinion, after running the Test Oil in a standard FZG Gear Rig under prescribed conditions.

Document History

DEF STAN 91-074
October 28, 2018
Lubricating Oil, Steam Turbine and Gear, Extreme Pressure Joint Service Designation: OEP-80
This method describes an outline procedure for estimating the total area of Micro-Pitting (grey staining) on all the teeth of a pinion, after running the Test Oil in a standard FZG Gear Rig under...
DEF STAN 91-74
September 22, 2000
Lubricating Oil, Steam Turbine and Gear, Extreme Pressure Joint Service Designation: OEP-80
This standard specifies requirements for a lubricating oil, primarily for use in marine gearboxes with high gear tooth loading and steam turbines. It is also suitable for certain hydraulic equipment...
DEF STAN 91-74
September 22, 2000
Lubricating Oil, Steam Turbine and Gear, Extreme Pressure Joint Service Designation: OEP-80
This standard specifies requirements for a lubricating oil, primarily for use in marine gearboxes with high gear tooth loading and steam turbines. It is also suitable for certain hydraulic equipment...
DEF STAN 91-74
January 1, 1993
Lubricating Oil, Steam Turbine and Gear, Extreme Pressure Joint Service Designation: OEP-80
This Defence Standard specifies the requirements for one grade of lubricating oil intended for marine use in gearing with high tooth loading and in steam turbines. It is also suitable for certain...

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 D1401 - Standard Test Method for Water Separability of Petroleum Oils and Synthetic Fluids
Published by ASTM on November 1, 2019
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:
ASTM D4310 - Standard Test Method for Determination of Sludging and Corrosion Tendencies of Inhibited Mineral Oils
Published by ASTM on June 1, 2020
This test method covers and is used to evaluate the tendency of inhibited mineral oil based steam turbine lubricants and mineral oil based anti-wear hydraulic oils to corrode copper catalyst metal...
This document references:
ASTM D5950 - Standard Test Method for Pour Point of Petroleum Products (Automatic Tilt Method)
Published by ASTM on May 1, 2014
This test method covers the determination of pour point of petroleum products by an automatic instrument that tilts the test jar during cooling and detects movement of the surface of the test...
This document is referenced by:
DEF STAN 02-805 - Requirements for Vapour Barrier Coatings and Proprietary Flexible Mastic Sealers for use on Insulation Materials
Published by MODUK on March 28, 2019
This Defence Standard (Def Stan.) specifies requirements for vapour barrier coatings and for proprietary flexible mastic sealers for use with thermal insulation materials in H.M. Surface Ships and...
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 July 28, 2021
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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