Thunder Facilities

Thunder Scientific NVLAP Accredited Calibration Laboratory

Thunder's Calibration Laboratory


Thunder's Calibration Laboratory
Please visit our Calibration Services page for our detailed information regarding our accredited parameters and their related ranges.

Thunder Scientific achieved its NVLAP accreditation in June of 2003 through the National Voluntary Laboratory Accreditation Program (NVLAP) and has maintained NVLAP accreditation ever since. Thunder Scientific is currently the only NVLAP accredited source to offer humidity calibrations that are traceable to the International System of Units (SI) through a national metrology institute (NIST) recognized through a CIPM MRA with uncertainties at (0.17 % * Rdg) + 0.016 %RH*. Thunder Scientific provides SI traceable calibration service on virtually any type of humidity, frost/dew point, temperature and pressure measuring/generating equipment. Final calibration, test and certification are performed in an environmentally-controlled calibration laboratory and NVLAP accredited Certificates of Calibration with Statements of Conformance are delivered with each instrument stating SI traceability. In addition to routine calibrations, Thunder Scientific can provide special test design with automated test sequence for evaluation of sensor performance and stability analysis. We deliver on time service (Expedite service is available) with defect free documentation as per the guidelines of ISO/IEC 17025:2017 and ANSI/NCSL Z540-1-1994; Part 1.

Manufacturing Assembly

Thunder Facilities / Manufacturing and Calibration
Thunder Scientific has been designing and manufacturing humidity calibration standards and humidity calibration equipment for more than 55 years. Our current manufacturing facility is laid out with multiple flexible production lines that support building our full line of humidity calibration systems. Thunder fabricates the majority of the components and sub-assemblies in a modular fashion to speed the manufacturing process; sub-contractors are utilized for a variety of parts and supplies. The various models are tested and inspected throughout the production process; high quality standards are in place to produce identical reliable products with zero defects. Thunder Scientific has implemented multi check procedures to provide the highest quality and value to our customers.

Thunder's Production Area

* Represents an expanded uncertainty using a coverage factor, k=2, at an approximate level of confidence of 95%.

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