Time & Frequency Calibrations

RCS Method has been written with reference to NIST SP960-12(04) and portions of NIST Handbook 
We are frequently asked to verify new units that customers have purchased from suppliers who have ANSI/ISO/IEC 17025-05(E) Accreditation. 

Typical Types Serviced (Most common but not limited to)

  • Digital Stop Watch
    (NIST Class 2A (Type 1)

  • Mechanical Stop Watch
    NIST Class 2A (Type II)

  • Timers
    NSIT Class 2B (Type III)
  • Laboratory Timers
  • Count-down Timers

  • Commercial Devices
    NIST Class 2C (Type IV)
    (Example: Parking Meters)

  • Internal Equipment Timers
  • Stop Watches
  • Laboratory Timers

The unit is then certified to specifications outlined in the appropriate ASTM method, within full with ANSI/ISO/IEC 17025-05(E), and utilizing NIST traceable standards and equipment.  Each unit "Certificate of Verification" with "As Found" and "As Left" data and is ANSI/ISO/IEC 17025-2005(E) A laminated identification sticker is placed on each die to provide the customer with required calibration information. Serial number, Type, calibration date and the calibration due date ( if requested) 
Riverview is a small company that customizes its service to the customer.  I am proud to say that our love our certificates. We make them easy to read and understand, packing them with as much and ensuring they conform to ANSI/ISO/IEC 17025:2005(E), ANSI/NCSL Z540-1-1994 and A2LA 

  • Send In Order Form

Please use the Form provided when sending anything in for service. The more information you provide is helpful in Riverview providing you the most efficient and accurate service.

  • Service Notices

We also track your equipment, 30 days prior to due dates we send out "Service Notices" to our customers.

We Accept

Certificate No. 1331-01 Calibration