Bldg 3 and 4 - Negative Pressure Rooms_Redacted.pdf

This document is an Air Balance Report prepared by National Air Filter Service Company of New Jersey for the Lyons V.A. Medical Center in Lyons, New Jersey, focusing on air balance measurements for Buildings 3 and 4's negative pressure rooms. The report includes detailed room-specific information for multiple rooms (G-113, F-114, H-114, H-112, and Room 56), providing room volume measurements, supply and exhaust airflow data, and air changes per hour. An executive summary notes that rooms E-116 and D-114 in Building 3 are no longer negative pressure rooms. The document also contains calibration certificates for AirData Multimeter equipment, including absolute pressure, differential pressure, low velocity, and temperature test standards, with calibration dates ranging from 2021 to 2022 and due dates extending into 2023-2024.

The calibration documents demonstrate meticulous measurement standards, with equipment calibrated by various organizations including Ashcroft, IET Labs, Shortridge Instruments, and Hart Scientific. The certifications cover a range of precision measurements for pressure (from 0-50 in wc), velocity (100-5000 fpm), and temperature (32°F to 176°F), with rated accuracies and uncertainties specified for each standard. The final page includes a NEBB (National Environmental Balancing Bureau) firm certification for testing, adjusting, and balancing environmental systems, valid through March 31, 2024.