Critical Orifice Assembly Glassware Doc ID: AERHQWW-k-152-en

Doc ID: AERHQWW-k-152-en

Aer Sampling's critical orifices shall only be calibrated in vacuum mode (i

Components (r2):

Choked flow rate

English (inch): ~77

Critical Orifice Assembly Glassware Doc ID: AERHQWW-k-152-enMeets or exceeds the following methods laws requirements: US EPA Method 5: Section 16. 2. 1. 1 (Selection of Critical Orifices) Section 16. 2. 2 (Critical Orifice Calibration) Product Description Critical Orifice is used to calibrate the dry gas meter (DGM) of various metering consoles. This calibration instrument is approved by the US EPA as calibration standard for calibrating a dry gas meter, in place of the wet test meter stated in Section 16. 1