my account 
Product Description
Surface Roughness Reference Standards/Profilometer Standards/Surface Finish Standards
Model No. SRG4600-500
Features
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
Available with Lab Certification: Part No. SRG4600-505
