Data Centers

Contamination Monitoring in Data Centers: What to Measure and How Often

6 min readUpdated 2026-07-18By Blue Collar Cleaning Co.

Data centers that operate without contamination monitoring are flying blind. A modest quarterly program costs a fraction of a single hardware failure caused by particle intrusion and provides the documentation needed to prove SLA compliance to tenants.

What to Measure

Airborne Particle Counts

ISO 14644-1 methodology, using calibrated laser particle counters at defined sampling points. Report particles ≥0.5 µm and ≥5.0 µm per cubic meter.

Settling Plates

Petri-style plates left open for defined durations to capture gravitational fall-out. Useful for identifying fiber, dust, and zinc whisker contamination.

Corrosion Coupons

Copper and silver coupons placed in the hall for 30-90 days measure gaseous contamination (H2S, SO2) that drives creep corrosion on components.

Recommended Frequency

  • Airborne particle counts: quarterly baseline; monthly during construction or renovation.
  • Settling plates: semi-annually.
  • Corrosion coupons: annually or when tenant SLA requires.

Add Monitoring to Your Program

We include quarterly particle counts with all recurring data center cleaning contracts.

Frequently Asked Questions

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