Phase2Plus

  • 21 Industrial Ave.
  • Upper Saddle River, NJ 07458
  • Phone: 201-962-7373
  • Toll Free: 800-526-9087
  • Fax: 201-962-8353

Roughness Reference Standards

Model No. SRG4600-500

Model No. SRG4600-505



High quality calibration standard for portable surface roughness gauges. Ra values of 119.5 and 16.1; individually serialized and available certified to NIST.


The Phase II Reference Standard provides a reliable calibration tool which permits the technician to calibrate surface analyzing equipment to its peak efficiency.The SRG4600-500 shows the actual patch mean values of low and high microinch surfaces


The surface of the Precision Reference Standard consists of a series of parallel, uniform, "V-shaped" grooves having an included angle of 150° between the sides. Since the surface character of the Precision Reference Standard is unlike normally machined surfaces, it is not recommended for use in visual and tactual comparison.


Model No. SRG4600-500 Roughness Reference Standard

Model No. SRG4600-505 NIST Certified Roughness Reference Standard




Supplied with protective carry case