Field glossary

Relative humidity (RH)

Air moisture in percent; lower RH raises resistance, so it is recorded with every reading

Used across 4 Anvilfield field guides, most in Datacenter.

Also defined as

HVAC: Water vapor present as a percentage of what the air could hold at its current temperature
Plumbing: Water vapor in the air as a percentage of what the air could hold at that temperature

Where this shows up