scope:

This document provides guidance on the procedures to follow when measuring gas-phase concentrations of contaminants in commercial buildings. The subject measurements are those used to establish existing, baseline, or changed conditions as a function of the building systems or interior environments. The methods in this guideline emphasize obtaining meaningful data within a reasonable time period at a reasonable cost.

This guideline does not apply to industrial or residential buildings. It does not address

a. specific measurement equipment or devices or

b. calibration of instruments.