ASTM D4442-20
Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials

Standard No.

ASTM D4442-20

Release Date

2020

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D4442-20

Scope

1.1 These test methods cover the determination of the moisture content (MC) of wood, veneer, and other wood-based materials, including those that contain adhesives and chemical additives. The test procedures appear in the following order: Sections Method A—Primary Oven-Drying Method 5 Method B—Secondary Oven-Drying Method 6 1.2 The primary oven-drying method (Method A) is intended as the sole primary method. It is structured for purposes where the highest accuracy or degree of precision is needed (for example, research or calibration). 1.3 The secondary oven-drying method (Method B) is intended for the purposes where the primary procedure (Method A) is not desired or justified. Test results in this method are generally less precise than in Method A. 1.4 For materials that have been chemically treated or impregnated with creosote, petroleum, and their solutions such that the oven-drying procedures introduce greater bias than desired in the results, other methods, such as AWPA A6, are recommended. 1.5 Units—The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D4442-20 Referenced Document

• ASTM D4933 Standard Guide for Moisture Conditioning of Wood and Wood-Base Materials
• ASTM D9 Standard Terminology Relating to Wood

ASTM D4442-20 history

• 2020 ASTM D4442-20 Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials
• 2016 ASTM D4442-16 Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials
• 2015 ASTM D4442-15 Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials
• 2007 ASTM D4442-07 Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Base Materials
• 1992 ASTM D4442-92(2003) Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Base Materials
• 1992 ASTM D4442-92(1997)e1 Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Base Materials
• 1984 ASTM D4442-84 Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Base Materials