10-point measurement and documentation
Have greater confidence in measurements and decisions with certified Yellow Jacket Class 1 Replacement Manifold Gauges and Manifolds with Class 1 gauges.
YELLOW JACKET gauges have always been manufactured and calibrated to NIST standards. The standard Ritchie engineering procedure has been to measure for accuracy at five points: two times up the scale and then back down. Many manufacturers measure at only three points (A, B, C).
The Ritchie Engineering certification process documents the NIST calibration plus compliance to ANSI Z540.1 and ISO 10012 standards. The certification is good for one year; recalibration is recommended after one year.
The certificate packed with each certified gauge provides evidence of calibration standards traceable to NIST and includes a serial number that matches the serial number on the gauge. Ritchie Engineering maintains records of each certificate.