GAR PRS | Precision Reference Standard Comparator With Case, NIST Approved

Gar Electroforming is the largest and longest established electroforming service center in the U.S. Through their years of experience in manufacturing, design, and development of electroforming processes and products they have created a unique lineup that have become the standard in their respective categories. They are cheifly known for their microfinish comparators that help to verify surface roughness in the manufacturing process. Their microfinish comparators are second to none in the industry. You can view their lineup here.

The GAR Precision Reference Standard shows actual patch mean values certified by the National Institute of Standards and Technology.

An economical calibration standard for surface analyzing equipment. Ra values 119.5 and 16.1

CERTIFICATION AVAILABLE AT ADDITIONAL CHARGE. Certification traceable to N.I.S.T., individually serialized, calibrated and certified Reference Standards is available but not included.

The GAR Precision Reference Standard provides an economical calibration tool which permits the technician to calibrate surface analyzing equipment to its peak efficiency. It is the only calibration block on the market to show the actual patch mean values of low and high microinch surfaces and certified by the National Institute of Standards and Technology. (N.I.S.T.).

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.

The property of surface roughness in the 125 microinch range and below is maintained by N.I.S.T. by means of master roughness specimens conforming to ANSI B46.1. The master specimens were calibrated by measuring their surface profile with a stylus instrument which in turn was calibrated by a interferometrically measured step. The areas under the profile curves were then measured and the roughness average computed. The accuracy of this measurement is 2% for the 119.5 and 1 microinch for the 16.1.

Features

• Manufacturer Part # PRS
• Rectangular in shape (2-1/2" x 3-3/4"
• Made of electroformed nickel and is rhodium plated for superior abrasion resistance.
• The Precision Reference Standard is supplied in a leather case
• Includes certification traceable to N.I.S.T. at an extra charge
• Calibration and individual serialization are available- contact us for details
• Made in USA.

Warning:

This product can expose you to materials and/or chemicals including arsenic, lead, and other materials and/or chemicals which are known to the state of California to cause cancer and/or reproductive harm.

For more information, visit www.P65Warnings.ca.gov

Warning:

This product can expose you to materials and/or chemicals including arsenic, lead, and other materials and/or chemicals which are known to the state of California to cause cancer and/or reproductive harm.

For more information, visit www.P65Warnings.ca.gov