TN2138 Falling Sand Abrasion Tester
Abrasion Tester for Organic Coatings by Falling
The Falling Sand Abrasion Tester is a rugged apparatus based on a design described in ASTM D 968 and other
internationally recognized test standards. Abrasion results from abrasive particles falling through a guide tube and
impinging the test specimen until the substrate becomes visible. Normally used to evaluate paints and other organic
coatings, abrasion resistance is expressed in terms of the volume of abrasive required to wear through a unit
thickness of the coating.
The top of the Falling Sand Tester apparatus is a funnel which holds the abrasive particles and includes a 60° tapered end
that connects to the guide tube. The guide is a straight, smooth-bore tube which contains the abrasive particles as they fall.
Specimens are fixed under the guide tube at a 45° angle in a receptacle that includes an opening at the bottom allowing the
abrasive particles to be collected in acontainer.
A sturdy base and support system hold the apparatus in a vertical position.
1.Length of conduct pipe: 36 inch (914 mm)
2.Inner diameter:0.75 inch (19 mm)
3.Volume of hopper:3 L
4.Dimension:230 mmX200 mmX1500 mm
ASTM D968 Standard Test For Abrasion Resistance of Organic Coatings by Falling
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