ASTM D5420-98a - 10.5.1998
 
1. Scope

1.1 This test method covers the determination of the relative ranking of materials according to the energy required to crack or break flat, rigid plastic specimens under various specified conditions of impact of a striker impacted by a falling weight.

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

1.3 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.

Note 1-There is no similar or equivalent ISO standard.
 
2. Referenced Documents

D883-26b

Standard Terminology Relating to Plastics (Includes all amendments and changes 8/24/2026).

D1600-18

Standard Terminology for Abbreviated Terms Relating to Plastics (Withdrawn 2024)

D2794-93(2024)

Standard Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact)

D3763-23

Standard Test Method for High Speed Puncture Properties of Plastics Using Load and Displacement Sensors

E691-23

Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

E171-94(1998)

Standard Specification for Standard Atmospheres for Conditioning and Testing Flexible Barrier Materials

D4226-25

Standard Test Methods for Impact Resistance of Rigid Poly(Vinyl Chloride) (PVC) Building Products

D618-21

Standard Practice for Conditioning Plastics for Testing

D5628-24

Standard Test Method for Impact Resistance of Flat, Rigid Plastic Specimens by Means of a Falling Dart (Tup or Falling Mass)

D4066-13(2025)

Standard Classification System for Nylon Injection and Extrusion Materials (PA)

D5947-24

Standard Test Methods for Physical Dimensions of Solid Plastics Specimens