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Metrology writing for the people who own the program. Intervals you can defend, standards in plain language, technique that actually moves the number, and what an auditor is really looking for.

Laboratory glassware and test tubes arranged on a benchLatest
Best PracticeAugust 18, 2026 · 7 min read

Setting a Pipette Calibration Interval You Can Defend

ISO 8655 does not hand you a number. It expects you to justify one. Here is how to build an interval from your own data instead of copying a competitor's SOP.

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A vernier caliper, a traceable dimensional measurement standard
Standards8 min read

What ISO 8655 Actually Requires of a Pipette Calibration

Measurement counts, volume points, environmental control, and the water you use. A plain reading of the standard behind every gravimetric pipette calibration.

July 9, 2026

Gloved hands pipetting a measured volume at the laboratory bench
Metrology6 min read

Five Habits That Quietly Ruin Pipette Accuracy

A perfectly calibrated pipette in the wrong hands delivers the wrong volume. The technique and handling errors we find most often on-site.

April 21, 2026

A precision measuring rule and scriber, close up
Standards6 min read

Preparing Your Pipette Program for an Audit

The documents an inspector will ask for, the gaps they find most often, and how to close them before anyone is standing at your bench.

February 27, 2026

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