Calibration foils & zero test plates - Elcometer 990

The Elcometer 990 calibration foils & zero test plates provide a reliable, traceable, and industry-standard solution for verifying and adjusting coating thickness gauges. These calibration tools ensure accurate measurements in laboratory, production, and field environments, helping maintain compliance with ASTM, ISO, and industry regulations.

Elcometer 990 Calibration Foils

Ideal for lab, production or on-site use
Metric & Imperial values displayed on each foil
Available individually or in foil sets (with or without Zero Plate)
Precision accuracy ±1%
Each foil has a unique serial number for traceability
Wide range of thicknesses: 12.5µm to 20mm (0.5 to 790mils)

How to use calibration foils?

Each foil is independently measured at the center point for accuracy.

For best results, place the probe in the center of the foil.

Combine up to 4 foils to create custom thickness values.

Elcometer 990 Zero Test Plates

Why Use Zero Test Plates?

Essential for accurate gauge calibration
Perfect when an uncoated substrate is unavailable

Technical specifications – Individual calibration foils

Part Number	Colour	Size (mm/inch)	Thickness (µm/mils)	Certificate Available
T99022570-1A	Silver	50 x 25mm (1.97 x 0.98")	12.5µm (0.5mil)	○
T99022570-2A	Purple	50 x 25mm (1.97 x 0.98")	25µm (1.0mil)	○
T99022570-4A	Dark Blue	50 x 25mm (1.97 x 0.98")	50µm (2.0mils)	○
T99022570-6A	Green	50 x 25mm (1.97 x 0.98")	75µm (3.0mils)	○
T99022570-7A	Brown	50 x 25mm (1.97 x 0.98")	125µm (5.0mils)	○
T99022570-9A	Peacock Blue	50 x 25mm (1.97 x 0.98")	175µm (7.0mils)	○
T99022570-10A	White	50 x 25mm (1.97 x 0.98")	250µm (10mils)	○
T99022570-12A	Black	50 x 25mm (1.97 x 0.98")	500µm (20mils)	○

○ Optional Calibration Certificate available

Calibration foil sets – predefined scale options

Scale	Foil Thickness (µm/mils)	Un-Certified	Certified
Scale 1	25, 50, 125, 250, 500, 1000 µm (1.0, 2.0, 5.0, 10, 20, 40 mils)	T99022255-1	T99022255-1C
Scale 2	25, 50, 125, 250, 500, 1000, 2000, 3000 µm (1.0, 2.0, 5.0, 10, 20, 40, 80, 120 mils)	T99022255-2	T99022255-2C
Scale 3	250, 500, 1000, 2000, 4000, 8000 µm (10, 20, 40, 80, 160, 315 mils)	T99022255-3	T99022255-3C

Technical Specifications – Zero Test Plates

Description	Size (mm/inch)	Ferrous	Non-Ferrous	Certificate Available
Zero Test Plate ±1%	50.8 x 25.4mm (2.0 x 1.0")	T9994910-	T9994911-	○
Zero Test Plate ±2%	76.2 x 50.8mm (3.0 x 2.0")	T9999529-	T9999530-	○
Zero Test Plate – Large ±2%	76.2 x 101.6mm (3.0 x 4.0")	T9994054-	T9994055-	○
Steel (F) Checkpiece*	50.8 x 88.9mm (2.0 x 3.5")	T99916925-	-	○
Aluminium (NF) Checkpiece*	50.8 x 88.9mm (2.0 x 3.5")	-	T99916901	○