ASTM D968-05(2010)
Standard Test Methods for Abrasion Resistance of Organic Coatings by Falling Abrasive

Standard No.

ASTM D968-05(2010)

Release Date

2005

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D968-15

Latest

ASTM D968-22

Scope

Silica sand produces a slower rate of abrasion for organic coatings than that provided by silicon carbide. For some types of coatings, it also provides greater differentiation.

The abrasion resistance scales produced by the two methods differ, but the methods provide approximately the same rankings of coatings for abrasion resistance.

Each of the methods has been found useful for rating the abrasion resistance of specific types of coatings. For example Method A (falling sand) has been used for rating floor coatings while Method B (falling silicon carbide) has been used for rating coatings for ship decks.

1.1 These test methods cover the determination of the resistance of organic coatings to abrasion produced by abrasive falling onto coatings applied to a plane rigid surface, such as a metal or glass panel.

1.2 Two test methods based on different abrasives are covered as follows:

	Sections
Method AFalling Sand Abrasion Test	1-12
Method BFalling Silicon Carbide Abrasion Test	13-19

1.3 These methods should be restricted to testing in only one laboratory when numerical values are used because of the poor reproducibility of the methods (see 13.1.2 and 21.1.2). Interlaboratory agreement is improved significantly when ranking is used in place of numerical values.

1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.5 This standard does not purport to address the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ASTM D968-05(2010) Referenced Document

• ANSI B74.12 Specifications for the Size of Abrasive Grain-Grinding Wheels, Polishing and General Industrial Uses
• ASTM D1 
• ASTM D1005 Standard Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micrometers
• ASTM D1186 Standard Test Methods for Nondestructive Measurement of Dry Film Thickness of Nonmagnetic Coatings Applied to a Ferrous Base
• ASTM D1400 Standard Test Method for Nondestructive Measurement of Dry Film Thickness of Nonconductive Coatings Applied to a Nonferrous Metal Base
• ASTM D823 Standard Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels
• ASTM E11 Standard Specification for Wire Cloth and Sieves for Testing Purposes

ASTM D968-05(2010) history

• 2022 ASTM D968-22 Standard Test Methods for Abrasion Resistance of Organic Coatings by Falling Abrasive
• 2017 ASTM D968-17 Standard Test Methods for Abrasion Resistance of Organic Coatings by Falling Abrasive
• 2016 ASTM D968-16 Standard Test Methods for Abrasion Resistance of Organic Coatings by Falling Abrasive
• 2015 ASTM D968-15 Standard Test Methods for Abrasion Resistance of Organic Coatings by Falling Abrasive
• 2005 ASTM D968-05(2010) Standard Test Methods for Abrasion Resistance of Organic Coatings by Falling Abrasive
• 2005 ASTM D968-05e1 Standard Test Methods for Abrasion Resistance of Organic Coatings by Falling Abrasive
• 2005 ASTM D968-05 Standard Test Methods for Abrasion Resistance of Organic Coatings by Falling Abrasive
• 1993 ASTM D968-93(2001) Standard Test Methods for Abrasion Resistance of Organic Coatings by Falling Abrasive
• 2001 ASTM D968-93 Standard Test Methods for Abrasion Resistance of Organic Coatings by Falling Abrasive
• 1986 ASTM D968-81(1986)e1 Standard Test Methods for Abrasion Resistance of Organic Coatings by Falling Abrasive