ASTM D2898防火试验用经阻燃处理木材加速风化标准试验方法

ASTM D2898 Standard Practice for Accelerated Weathering of Fire-Retardant-Treated Wood for Fire Testing
ASTM D2898 防火试验用经阻燃处理木材加速风化标准试验方法

This practice describes different methods of exposing fire-retardant-treated wood products or assemblies to controlled accelerated weathering or conditioning.
The conditioning simulates effects of leaching, drying, temperature, and, in two methods, UV light.
Method A is the method normally specified for regulatory purposes when testing fire-retardant-treated wood that is intended for exterior applications.

1. Scope
1.1 This practice addresses the durability of a fire-retardant treatment of wood products by exposure to accelerated cycles of wetting, drying, or ultraviolet (UV) exposure, or combination thereof, prior to evaluation by a fire response test. Four conditioning methods are described.
1.2 This practice is applicable to wood products that have been treated with fire-retardant chemicals by pressure impregnation.
1.3 The test specimens are to be in the form of, or suitable for fabrication into, test specimens, such as those described in Test Methods E84, E108, and E1354 and other standard test methods for evaluating the fire performance of fire-retardant-treated wood products.
1.4 The text of these methods references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of these test methods.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that 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 and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents (purchase separately)
ASTM Standards
ASTM D9 Terminology Relating to Wood and Wood-Based Products
ASTM E84 Test Method for Surface Burning Characteristics of Building Materials
ASTM E108 Test Methods for Fire Tests of Roof Coverings
ASTM E176 Terminology of Fire Standards
ASTM E1354 Test Method for Heat and Visible Smoke Release Rates for Materials and Products Using an Oxygen Consumption Calorimeter
ICC Evaluation Service Acceptance Criteria
AC107 Classified Wood Roof Systems
UL Standards
UL790 Tests for Fire Resistance of Roof Covering Material
Index Terms
fire retardant; fire retardant-treated wood; fire testing; weathering; Accelerated weathering; Fire-retardant-treated wood/wood-base materials; Weathering (building materials/applications); Wood products (fire-retardant-treated) ;

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 来源：防火网　发布时间：12/18/2013 点击次数：1166