ASTM D3499-19 PDF

Full title and description

ASTM D3499-19 — Standard Test Method for Toughness of Wood Structural Panels. This test method defines a pendulum-impact procedure to determine the energy required to cause failure of wood structural panel specimens (plywood, oriented strand board, waferboard and similar wood-based panel products) under mid-span impact loading.

Abstract

This standard specifies the specimen geometry, test-fixture arrangement and pendulum-type toughness machine operation used to measure toughness (impact energy to failure) of wood structural panels. Results are reported in inch–pound units (with SI conversions for information) and the method references related ASTM procedures for moisture, density and clear-wood toughness measurements. The method is intended for comparative evaluation, quality control and research on panel performance under impact loading.

General information

• Status: Published / active.
• Publication date: Current edition approved March 1, 2019; published May 2019 (designation D3499-19).
• Publisher: ASTM International (American Society for Testing and Materials).
• ICS / categories: 79.060.10 — Plywood / Wood technology.
• Edition / version: D3499-19 (current revision published 2019).
• Number of pages: 3 pages (concise test method).

Scope

This test method covers determination of the energy necessary to cause failure of a simply supported beam specimen cut from wood structural panel material when subjected to a midspan impact delivered by a pendulum-type toughness machine. Applicable panel types include plywood, oriented strand board (OSB), waferboard and veneer/wood-based composites. Values in inch–pound units are the standard; SI conversions are informational only. The method is intended for evaluating comparative toughness, material condition effects (for example decay) and for use in quality control and research contexts.

Key topics and requirements

• Specimen geometry: width, thickness and length defined relative to panel thickness so specimens are square in cross section for thicker materials.
• Apparatus: pendulum/weight and drum arrangement, cable loading to apply impact near midspan, and adjustment for friction and swing angles.
• Test procedure: controlled pendulum release, measurement of energy absorbed to cause failure, and repeat testing for statistical comparison.
• Units and reporting: inch–pound values are standard; SI conversions may be reported for information.
• Referenced methods: cross-reference to ASTM standards such as D143 (small clear specimens), D2395 (density) and D4442 (moisture content) for conditioning and related measurements.
• Intended use: comparative toughness assessment, material condition evaluation (e.g., effects of decay), and manufacturing quality control for structural panels.

Typical use and users

Used by materials testing laboratories, lumber and panel manufacturers, product development teams, certification bodies and researchers studying impact resistance and durability of wood structural panels. Common applications include production quality control, acceptance testing, product development and comparative evaluations of panel formulations or treatments.

Related standards

Commonly referenced ASTM standards in conjunction with D3499 include: D143 (Test Methods for Small Clear Specimens of Timber), D2395 (Density and Relative Density of Wood and Wood-Based Materials), and D4442 (Direct Moisture Content Measurement of Wood and Wood-Based Materials). The test is maintained under ASTM Committee D07 on Wood (Subcommittee D07.03 on Panel Products).

Keywords

toughness, impact, pendulum, wood structural panels, plywood, OSB, waferboard, panel testing, ASTM D3499-19, pendulum toughness machine

FAQ

Q: What is this standard?

A: ASTM D3499-19 is a Standard Test Method for Toughness of Wood Structural Panels that defines a pendulum-impact procedure to measure the energy required to cause failure of panel specimens.

Q: What does it cover?

A: It covers specimen dimensions, apparatus requirements (pendulum toughness machine), test procedure, units of measurement and reporting for evaluating impact toughness of plywood, OSB, waferboard and similar wood-based structural panels.

Q: Who typically uses it?

A: Materials testing labs, panel manufacturers, R&D teams, certification bodies and anyone performing comparative toughness or quality-control testing on wood structural panels.

Q: Is it current or superseded?

A: The current edition is D3499-19 (approved March 1, 2019 and published in 2019). It supersedes the prior D3499-11 edition. Users should always confirm they are using the latest ASTM edition before testing.

Q: Is it part of a series?

A: It is one of the D07-series standards maintained by ASTM Committee D07 on Wood and Subcommittee D07.03 on Panel Products; it is commonly used alongside related test methods (e.g., D143, D2395, D4442).

Q: What are the key keywords?

A: Toughness, impact energy, pendulum test, wood structural panels, plywood, oriented strand board, ASTM D3499-19.