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Global knowledge index

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Search test names, abbreviations, alternative terminology, fluids, equipment, symptoms, standards, FAQs, glossary terms and pathways.

73Published knowledge records

Every entry carries review metadata, references and connected diagnostic context.

domain01

Oil Condition Monitoring

Machine wear, contamination and lubricant condition interpreted as a connected system. This pillar connects fluids, equipment, tests, abnormal findings and corrective actions.

  • domain
Open reference
domain02

Fuel Analysis

Quality, contamination, storage stability and specification-led assessment for fuels. This pillar connects fluids, equipment, tests, abnormal findings and corrective actions.

  • domain
Open reference
domain04

Coolant Analysis

Freeze protection, inhibitor health, contamination and corrosion evidence. This pillar connects fluids, equipment, tests, abnormal findings and corrective actions.

  • domain
Open reference
domain05

Grease Analysis

Base oil, thickener, consistency, contamination and wear-debris assessment. This pillar connects fluids, equipment, tests, abnormal findings and corrective actions.

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Open reference
domain06

Transformer Oil Analysis

Dielectric condition, dissolved gases, moisture and insulation ageing evidence. This pillar connects fluids, equipment, tests, abnormal findings and corrective actions.

  • domain
Open reference
domain07

Hydraulic Fluid Analysis

Cleanliness, water, viscosity and varnish risk for precision fluid-power systems. This pillar connects fluids, equipment, tests, abnormal findings and corrective actions.

  • domain
Open reference
domain08

Metalworking Fluid Analysis

Concentration, microbial control, tramp oil, corrosion risk and process-fluid stability. This pillar connects fluids, equipment, tests, abnormal findings and corrective actions.

  • domain
Open reference
domain09

Fluid Sampling Guide

Representative, repeatable and safe sampling from equipment, tanks and fluid systems. This pillar connects fluids, equipment, tests, abnormal findings and corrective actions.

  • domain
Open reference
test10

Kinematic Viscosity

Confirm grade and detect dilution, oxidation, shear or contamination. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • physical properties
Open reference
test11

Viscosity Index

Describe the temperature sensitivity of lubricant viscosity. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • physical properties
Open reference
test12

Elemental Analysis by ICP-OES

Screen wear metals, contaminants and additive elements. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • wear and elemental analysis
Open reference
test13

PQ Index

Detect the relative amount of ferromagnetic debris, including particles too large for ICP response. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • wear and elemental analysis
Open reference
test14

Analytical Ferrography

Examine wear-particle morphology when routine trends suggest abnormal distress. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • wear and elemental analysis
Open reference
test15

Particle Count

Quantify fluid cleanliness and support contamination-control decisions. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • contamination
Open reference
test16

Karl Fischer Water

Quantify dissolved, emulsified and finely dispersed water. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • contamination
Open reference
test17

Acid Number

Trend acidic constituents associated with oxidation, contamination or additive chemistry. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • chemical condition
Open reference
test18

Base Number

Assess remaining alkaline reserve in engine oils. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • chemical condition
Open reference
test19

FTIR Oil Condition Monitoring

Trend oxidation, nitration, soot, water, glycol and selected additive changes. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • chemical condition
Open reference
test20

Fuel Dilution in Oil

Quantify unburned fuel entering engine lubricant. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • contamination
Open reference
test21

Soot in Engine Oil

Track combustion-derived carbon loading and dispersancy stress. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • contamination
Open reference
test22

Glycol Contamination

Detect coolant-related glycol in lubricating oil. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • contamination
Open reference
test23

Flash Point

Assess volatile contamination, handling risk and product conformance. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • physical properties
Open reference
test24

Density

Support fuel identity, mass-volume conversion and specification testing. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • physical properties
Open reference
test25

Distillation Characteristics

Describe volatility distribution and detect composition changes or contamination. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • fuel analysis
Open reference
test26

Sulfur Content

Assess emissions-related quality, contamination and specification conformance. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • fuel analysis
Open reference
test27

Cetane Quality

Characterise diesel ignition quality. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • fuel analysis
Open reference
test28

Diesel Lubricity by HFRR

Evaluate boundary-lubrication performance relevant to fuel-injection equipment. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • fuel analysis
Open reference
test29

Cold Filter Plugging Point

Estimate low-temperature operability related to wax-crystal filter blockage. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • fuel analysis
Open reference
test30

Coolant pH

Assess acid-base condition and possible inhibitor or contamination changes. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • coolant analysis
Open reference
test31

Coolant Glycol Concentration

Estimate freeze/boil protection and detect dilution or incorrect mixing. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • coolant analysis
Open reference
test32

Coolant Conductivity

Screen ionic contamination, water quality and coolant degradation. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • coolant analysis
Open reference
test33

AdBlue Urea Concentration

Confirm the urea-water composition required for SCR dosing. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • adblue analysis
Open reference
test34

AdBlue Refractive Index

Rapidly assess AUS 32 concentration and potential dilution. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • adblue analysis
Open reference
test35

Transformer Oil Breakdown Voltage

Assess dielectric strength and sensitivity to moisture, particles and handling. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • electrical properties
Open reference
test36

Dissolved Gas Analysis

Identify gas patterns associated with electrical and thermal activity. Learn the method principle, sample controls, interpretation limits and related diagnostic evidence.

  • tests
  • transformer diagnosis
Open reference
equipment37

Diesel Engine

Reliability guide for diesel engine fluids, sampling locations, common failure modes and evidence-led test selection.

  • equipment
Open reference
equipment39

Hydraulic System

Reliability guide for hydraulic system fluids, sampling locations, common failure modes and evidence-led test selection.

  • equipment
Open reference
equipment40

Gas Turbine

Reliability guide for gas turbine fluids, sampling locations, common failure modes and evidence-led test selection.

  • equipment
Open reference
equipment41

Steam Turbine

Reliability guide for steam turbine fluids, sampling locations, common failure modes and evidence-led test selection.

  • equipment
Open reference
equipment42

Air Compressor

Reliability guide for air compressor fluids, sampling locations, common failure modes and evidence-led test selection.

  • equipment
Open reference
equipment43

Generator Engine

Reliability guide for generator engine fluids, sampling locations, common failure modes and evidence-led test selection.

  • equipment
Open reference
equipment44

Power Transformer

Reliability guide for power transformer fluids, sampling locations, common failure modes and evidence-led test selection.

  • equipment
Open reference
problem47

High Iron in Used Oil

High Iron in Used Oil is a diagnostic observation, not a diagnosis. Compare causes, supporting indicators, confirming tests and proportionate actions.

  • problems
Open reference
problem48

High Copper in Used Oil

High Copper in Used Oil is a diagnostic observation, not a diagnosis. Compare causes, supporting indicators, confirming tests and proportionate actions.

  • problems
Open reference
problem49

High Silicon in Used Oil

High Silicon in Used Oil is a diagnostic observation, not a diagnosis. Compare causes, supporting indicators, confirming tests and proportionate actions.

  • problems
Open reference
problem50

Water Contamination

Water Contamination is a diagnostic observation, not a diagnosis. Compare causes, supporting indicators, confirming tests and proportionate actions.

  • problems
Open reference
problem51

Fuel Dilution

Fuel Dilution is a diagnostic observation, not a diagnosis. Compare causes, supporting indicators, confirming tests and proportionate actions.

  • problems
Open reference
problem52

Coolant Ingress into Oil

Coolant Ingress into Oil is a diagnostic observation, not a diagnosis. Compare causes, supporting indicators, confirming tests and proportionate actions.

  • problems
Open reference
problem53

High Oil Viscosity

High Oil Viscosity is a diagnostic observation, not a diagnosis. Compare causes, supporting indicators, confirming tests and proportionate actions.

  • problems
Open reference
problem54

Low Oil Viscosity

Low Oil Viscosity is a diagnostic observation, not a diagnosis. Compare causes, supporting indicators, confirming tests and proportionate actions.

  • problems
Open reference
problem55

High Acid Number

High Acid Number is a diagnostic observation, not a diagnosis. Compare causes, supporting indicators, confirming tests and proportionate actions.

  • problems
Open reference
problem56

Low Base Number

Low Base Number is a diagnostic observation, not a diagnosis. Compare causes, supporting indicators, confirming tests and proportionate actions.

  • problems
Open reference
problem57

High Particle Count

High Particle Count is a diagnostic observation, not a diagnosis. Compare causes, supporting indicators, confirming tests and proportionate actions.

  • problems
Open reference
problem58

Diesel Filter Blockage

Diesel Filter Blockage is a diagnostic observation, not a diagnosis. Compare causes, supporting indicators, confirming tests and proportionate actions.

  • problems
Open reference
problem59

AdBlue Crystallisation

AdBlue Crystallisation is a diagnostic observation, not a diagnosis. Compare causes, supporting indicators, confirming tests and proportionate actions.

  • problems
Open reference
problem60

Coolant Corrosion

Coolant Corrosion is a diagnostic observation, not a diagnosis. Compare causes, supporting indicators, confirming tests and proportionate actions.

  • problems
Open reference
problem61

Grease Contamination

Grease Contamination is a diagnostic observation, not a diagnosis. Compare causes, supporting indicators, confirming tests and proportionate actions.

  • problems
Open reference
pathway65

Low Viscosity

Interactive evidence pathway for viscosity below the comparable baseline, with cautious outcomes and related testing.

  • pathways
Open reference
pathway66

High Viscosity

Interactive evidence pathway for viscosity above the comparable baseline, with cautious outcomes and related testing.

  • pathways
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