Upper management at Graftel LLC. We are a full service in-house flow calibration facility in the Chicagoland area. Providing metrology services in a multitude of industry sectors across the United States. Graftel also specializes in heat exchanger thermal performance, and reactor containment leak rate testing in nuclear facilities domestic, and international. Graftel is an OEM in leak rate monitoring systems that have now become the industry standard in the nuclear industry. Graftel maintains a complete ISO/IEC 17025:2005 ANSI/NCSL Z540-1-1994 (R2002) and ANSI/NCSL Z540.3:2006 sub clause 5.3 accredited calibration lab for gas flow, water flow, pressure. RH/dew point, air velocity, and temperature. Laboratory equipment is maintained in accordance with MIL-STD-45662A. Nuclear Power applications meet 10 CFR 50 Appendix B, and 10 CFR 50 Part 21 requirements. All calibrations are NIST Traceable.