Turbine Oils, ASTM D 4378 Specification
In-Service Monitoring of Mineral Turbine Oils

Test Description

Method

Required Tests:

Acid Number, Color-Indicator Titration (TAN)

ASTM D 974.a

Oxidation Stability by Rotating Bomb Method, RBOT

ASTM D 2272.a

Particle Count, Automatic Optical Particle Count

ISO 4406

Rust-Preventing Characteristics

ASTM D 665.a

Corrosion from Petroleum Products, Copper Strip Tarnish Test

ASTM D 130

Emulsion Characteristics of Lubricating Oils (Water Separability)

ASTM D 1401

Water Content by Karl Fisher Method

ASTM D 203

Color, ASTM Color Scale

ASTM D 1500

Viscosity, Kinematic, at 40ºC, cSt

ASTM D 445.a

Flash Point, Cleveland Open Cup

ASTM D 92.a

Foaming Tendencies of Lubricating Oils

ASTM D 892

Additional Optional Tests:

Acid Number of Petroleum Products, Potentiometric Titration

ASTM D 664

Particulate Contamination Analysis Using Membrane Filters

ASTM F 311

Microscopical Sizing and Counting Particles from Aerospace Fluids on Membrane Filters

ASTM F 312

Additive Elements, Wear Metals, and Contaminants in Used Lubricating Oils and Determination of Selected Elements in Base Oils by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)

ASTM D 5185

Antioxidant Concentration in HL Turbine Oils

ASTM D 6810