1.1 These test methods cover the use of pendulum damping testers in the determination of hardness of organic coatings that have been applied to acceptably plane rigid surfaces, such as a metal or glass panel.
1.2 Two test methods based on different pendulum types are covered as follows:
1.2.1 Test Method A—König Pendulum Hardness Test.
1.2.2 Test Method B—Persoz Pendulum Hardness Test.
1.3 This standard is similar in content (but not technically equivalent) to ISO 1522.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 This standard does not purport to address all of 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 D4366-16 Referenced Document
ASTM D1005 Standard Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micrometers*, 2020-06-01 Update
ASTM D3891 Standard Practice for Preparation of Glass Panels for Testing Paint, Varnish, Lacquer, and Related Products
ASTM D7091 Standard Practice for Nondestructive Measurement of Dry Film Thickness of Nonmagnetic Coatings Applied to Ferrous Metals and Nonmagnetic, Nonconductive Coatings Applied to Non-Ferrous Metals*, 2022-06-01 Update
ASTM D823 Standard Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels
ISO 1522 Paints and varnishes — Pendulum damping test*, 2022-11-07 Update
ASTM D4366-16 history
2021ASTM D4366-16(2021) Standard Test Methods for Hardness of Organic Coatings by Pendulum Damping Tests
2016ASTM D4366-16 Standard Test Methods for Hardness of Organic Coatings by Pendulum Damping Tests
2014ASTM D4366-14 Standard Test Methods for Hardness of Organic Coatings by Pendulum Damping Tests
1995ASTM D4366-95 Standard Test Methods for Hardness of Organic Coatings by Pendulum Damping Tests