Surface Roughness Standards

Mahr  Certified Dual Roughness Master   2238983

Surface roughness standard with two areas: sinusoidal for calibration, and triangular for stylus check

Ra=3µm /118µin Ra=0.4µm/16µin.

Certified to the value of the standard included parameters Ra, Rz, Rmax, PC (RPC) which are tracable to N.I.S.T.

(to view copy of calibration certificate click here)

GAR Precision Reference Standard

is rectangular in shape, (2-1/2 x 3-3/4) mad of electroformed nickel and is rhodium plated for superior abrasion. The Precision Reference Standard is supplied in a leather case and includes certification traceable to N.I.S.T.

119.5 Ra value  16.1 stylus check

(to view copy of calibration certificate click here)

Mahr Precision Reference  Standard   529-RS6

Ra 0.1μm (4 μin) Sm = 10μm

Certification available at additional cost

Mahr Precision Reference  Standard   2242058

Ra 0.3μm (12μin) Sm = 100μm

Certification available at additional cost

Mahr Precision Reference  Standard   2243692

Ra 0.5μm (20μin) Rz = 1.6  Sm = 50μm

Certified W/5μm stylus

Mahr Precision Reference  Standard   530-RS7

Ra 1.0μm (40μin) Sm = 50μm

Certification available at additional cost

(to view copy of calibration certificate click here)

Mitutoyo Reference  Standard

Ra 2.94μm (116μin) Rmax (Ry) 9.3μm (366μin)

Certification available at additional cost

Starrett/Taylor Hobson Reference  Standard   112/1534

Ra 6μm (236)

Single Patch Roughness Standard, chrome. Not certified

Mahr PGN Geometric Standards

Surface roughness standard with a sinusoidal groove profile for dynamic monitong of the roughness measuring station.

RA,RZ,Rmax. Optical flat.

Mahr Pocket Surf Reference Specimen

Ra = 118

certified