Specifications include, but are not limited to: A. 2 each Calibration of BGI Incorporated deltaCal Flow Calibrators $ __________ Item Description: NIST Traceable Standard for volumetric air flow, barometric pressure, and ambient temperature. The deltaCal is a venturi based system with built-in compensation for changes in ambient temperature and pressure. Used primarily to calibrate Met One Air Monitoring Particulate Monitors. Item Specifications: Flow rate range: 2 - 20 liters per minute (±1%) Temperature reading range: -30 °C to 55 °C (±0.5 °C) Barometric pressure range: 400 to 800 mm of Hg (±5mm) B. 1 each Mesa Labs ML-500 Annual Maintenance and Calibration $ __________ Item Description: NIST Traceable Standard for volumetric air flow, barometric pressure, and ambient temperature. The ML-500 uses BIOS DryCal® Technology with built-in compensation for changes in ambient temperature and pressure. Used primarily to calibrate ambient air monitoring gas dilution calibrators. Kit contains base unit, 0-500 sccm flow cell, and 500-50,000 sccm flow cell. Description: Annual maintenance and calibration must be performed by Mesa Labs which is an intensive service and calibration package that provides pre- and post-dynamic flow comparisons against Mesa Labs Proven BIOS DryCal Technology lab standard. Factory calibration shall include: • disassembly and inspection of the instrument for wear, defect, contaminants and damage • complete product refurbishment-including cleaning of the piston and glass assembly • installation of any available upgrades and other routine and preventative maintenance items • repair and/or replacement of parts as needed • upgrade firmware and hardware as needed • temperature and pressure sensor calibration • multi-point flow calibration with adjustment • NIST traceable calibration certificate with As-Found (pre) and As-Left (post ) data • Recertification must include a 90-day service warranty should any related labor or parts replacements prove faulty