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May 21, 2009
A2LA Accreditation expands to include Laser Primary Accelerometer Calibration Services

THE MODAL SHOP, INC., a PCB Group Company, announced the recent expansion of their scope of A2LA accreditation to ISO/IEC 17025:2005 and ANSI/NCSL Z540-1-1994, internationally recognized standards, which specify general requirements necessary to exhibit technical competence in carrying out various calibration methods, in accordance with ISO 9001.

As part of this accreditation, The Modal Shop has expanded their in-house calibration service offering to include primary calibration of accelerometers via laser interferometry as defined by ISO 16063-11.  The service is immediately available to provide improved calibration of any accelerometer, but particularly relevant for any secondary transfer or working standard, like the PCB® 394 series of piggyback reference accelerometers or the precision reference accelerometers internal to The Modal Shop’s K394A3x series of calibration air bearing shakers.  This service will also be the standard system reference calibration provided with any new 9155 accelerometer calibration workstation, substantially reducing system measurement uncertainties.

In addition to calibration services, The Modal Shop manufactures a number of standard and custom calibration workstations and turnkey systems, designed to offer quality calibrations of accelerometers, microphones, impact hammers, force transducers and pressure transducers.  Calibration products conform to recommended industry standards, and are typically available for purchase or rental.  All calibration services and equipment are backed by the PCB Group Total Customer Satisfaction Policy, which guarantees satisfaction or your money refunded.

For additional information on these or other services, contact THE MODAL SHOP, INC., 3149 E. Kemper Road Cincinnati, OH 45241-1516, Internet:, (800) 860-4867, Fax (513) 458-2172 or e-mail:

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