ASTM E2579-23b PDF

Overview

ASTM E2579-23b: Standard Practice for Specimen Preparation and Mounting of Wood Products to Assess Surface Burning Characteristics provides comprehensive guidelines for preparing and mounting wood products intended for fire testing. This ASTM standard supports accurate determination of flame spread and smoke development on wood products, in accordance with building code requirements for surface burning characteristics. Testing is typically performed using ASTM E84 or ASTM E2768, which are well-established methods for evaluating the fire-test response of building materials.

The practice is applicable to both solid and factory-laminated wood products with a wood substrate but excludes wood veneers or facings applied on-site, which are covered under ASTM E2404. It establishes uniform procedures for specimen conditioning, preparation, and mounting to ensure consistent and reproducible results, but does not assign regulatory pass/fail criteria.

Key Topics

• Specimen Preparation: Details on specimen sizes, preparation for pressure-treated and untreated wood, and special requirements for laminates, veneers, panel products, and wood shingles or shakes.
• Mounting Procedures: Specific mounting instructions for:
  • Panel products that support themselves
  • Wood veneers lacking structural integrity
  • Products applied over gypsum board or wood substrates
  • Shingles and shakes mounted on plywood or as specified by the manufacturer
• Fire Testing Methods: Testing is conducted using ASTM E84 or ASTM E2768 protocols.
• Moisture Content Determination: Outlines procedures for measuring specimen moisture using ASTM D4442, and the importance of using oven dry methods for accuracy.
• Safety Considerations: Emphasizes the inherent hazards of fire testing and the necessity for appropriate safety measures during all procedures.
• Reporting Requirements: Specifies mandatory details for test reports, including preparation and mounting methods, moisture content, specimen description, and observed fire performance results.
• International Standardization: Developed in accordance with internationally recognized protocols to facilitate global acceptance.

Applications

This standard practice is essential for laboratories, manufacturers, and regulatory agencies seeking to determine the surface burning characteristics of wood products used in construction. Practical applications include:

• Building Code Compliance: Supports compliance with requirements regarding flame spread and smoke development, helping manufacturers and designers select appropriate building materials.
• Product Certification: Used by third-party testing agencies and manufacturers as part of certification protocols for fire-resistant wood materials.
• Product Development: Assists manufacturers in refining wood and wood-based products to meet fire safety standards.
• Research and Development: Provides a foundation for comparative studies on different wood treatments and their impact on fire response.

Related Standards

This standard should be used in conjunction with other relevant ASTM and international standards, including:

• ASTM E84 - Test Method for Surface Burning Characteristics of Building Materials
• ASTM E2768 - Test Method for Extended Duration Surface Burning Characteristics of Building Materials
• ASTM D4442 - Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials
• ASTM E2404 - Practice for Specimen Preparation and Mounting of Textile, Paper, Polymeric, and Wood Wall or Ceiling Coverings to Assess Surface Burning Characteristics
• ASTM C1396/C1396M - Specification for Gypsum Board
• IEEE/ASTM SI-10 - International System of Units (SI)
• CSA O121 - Douglas Fir Plywood
• ANSI/HPVA HP-1 - American National Standard for Hardwood and Decorative Plywood
• NIST PS 1 - Voluntary Product Standard for Structural Plywood

By following ASTM E2579-23b, stakeholders in the wood products industry can achieve standardized, reproducible, and internationally recognized fire testing results for specimen preparation and mounting, helping ensure building safety and regulatory compliance.