A2LA, NCSL and NAPT Accreditations
National Calibration Inc. (NCI) follows guidelines set forth in ISO/IEC 17025:2005 and ANSI Z540-1, and is accredited to those standards by the American Association for Laboratory Accreditation (A2LA). NCI is a member of the National Conference of Standards Laboratories (NCSL) and National Association for Proficiency Testing (NAPT). Our laboratories and regional field offices issue calibration reports that contain the "accreditation logo" within our accredited service scope.For more information, see our accreditation full scope listing. This accreditation listing is a .pdf file, and requires Adobe Acrobat Reader to view it.
Representative Clients The following is a representative sample of NCI Fortune 500 clients:
- Air Products and Chemicals
- Alcoa, Inc.
- Applied Materials
- Avnet, Inc.
- Baxter International
- CVS Caremark, Inc.
- Ford Motor Company
- GE Healthcare
- Goodrich Corporation
- Honeywell International
- Intel Corporation
- Johnson Controls
- Lockheed Martin
- Praxair, Inc.
- Rohm and Haas Company
- Southwest Airlines





