01Sampling · 8 min · reviewed Jul 2026
Why an accurate laboratory cannot rescue an unrepresentative sample
The analytical result describes the submitted portion. The sampling system determines whether that portion describes the asset, tank or fluid population you intended to assess.
Read technical note →02Interpretation · 7 min · reviewed Jul 2026
Why a result inside a limit can still deserve attention
Absolute thresholds are one decision tool. Rate of change, correlated signals, sampling comparability and asset criticality can reveal a developing condition earlier.
Read technical note →03Wear debris · 9 min · reviewed Jul 2026
ICP iron, PQ and ferrography answer different questions
Elemental concentration, bulk ferromagnetic response and particle morphology are complementary views of a wear-debris population—not interchangeable measures.
Read technical note →04Fuel storage · 8 min · reviewed Jul 2026
Water, oxidation and microbial debris in stored diesel
Recurrent filter blockage is an observation with several possible mechanisms. Tank-layer sampling and examination of the retained material narrow the investigation.
Read technical note →05Coolant · 6 min · reviewed Jul 2026
Why colour cannot establish coolant identity or compatibility
Dye is not a controlled universal code for glycol type, inhibitor technology, concentration or equipment approval.
Read technical note →06Transformer oil · 9 min · reviewed Jul 2026
DGA is a pattern and trend, not a single-gas verdict
Diagnostic gases support hypotheses about electrical and thermal activity. Sampling integrity, generation rate, operating context and companion evidence determine confidence.
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