01
Use a workflow, not an isolated number
Each reference starts with the field decision, identifies the minimum observations, works a verified example and marks the boundary between calculation and professional judgment. The aim is a reproducible record, not a diagnosis generated from one humidity reading.
Use consistent pressure and units, preserve instrument uncertainty, and distinguish measured values from calculated properties. The connected tools perform the numeric work while these pages structure the reasoning.
02
Five distinct jobs
Commissioning checks whether airside states tell a coherent operational story. Four-state comparison organizes outdoor, return, mixed and supply air. Drying and storage focus on moisture and cold surfaces. Altitude correction fixes pressure-dependent properties. Process interpretation classifies heat and moisture direction.
These references support preliminary work only. Equipment performance, compliance, health and safety decisions require the applicable standards, calibrated measurements and qualified review.