Technical Data:
Series: 182
Product type: Standard Scale
Range: 250 mm
Accuracy at 20 deg C: (0.5+L/1000) um, L=measured length in mm
Glass material: Low-expansion glass
Thermal expansion coefficient: 8 x 10^-8/K
Graduation: 1 mm
Graduation thickness: 4 um
Mass: 0.75 kg
Certificate configuration: English JCSS certificate

Application:
High-accuracy standard for calibrating graduated scales.

Dimensions:
L=280 mm
W=20 mm
T=10 mm
Alignment mark thickness=20 um