Значение и использование

These test methods cover small-specimen tests for wood-base fiber and particle panel materials that are made to provide:

Data for comparing the mechanical and physical properties of various materials,

Data for determining the influence on the basic properties of such factors as raw material and processing variables, post-treatments of panels, and environmental influences, and

Data for manufacturing control, product research and development, and specification acceptance.

Not all the tests outlined in these test methods may be necessary to evaluate any particular panel for any specified use. In each instance, therefore, it will be necessary to determine which tests shall be made.

Область применения

1.1 Part AGeneral Test Methods for Evaluating the Basic Properties of Wood-Base Fiber and Particle Panel Materials. These test methods cover the determination of the properties of wood-base fiber and particle panel materials that are produced as mat-formed panels such as particleboard, medium-density fiberboard, hardboard, and oriented strand board.

Section Significance and Use3 Apparatus4 Test Specimens5 Moisture Content and Conditioning Requirements6 Accelerated Aging7 Size, Physical Properties and Appearance of Panels8 Static Bending9 Tension Parallel to Surface10 Tension Perpendicular to Surface11 Compression Parallel to Surface12 Fastener Holding Tests: Lateral Nail Resistance13 Nail Withdrawal14 Nail-Head Pull-Through15 Direct Screw Withdrawal16 Hardness17 Hardness Modulus18 Shear in the Plane of the Panel19 Glue-Line Shear (Block Type)20 Falling Ball Impact21 Abrasion Resistance by the U.S. Navy Wear Tester22 Moisture Tests: Water Absorption and Thickness Swelling23 Linear Expansion with Change in Moisture Content24 Cupping and Twisting25 Interlaminar Shear26 Edgewise Shear27 Compression-Shear28

1.2 Part BAcceptance and Specification Test Methods for Hardboard. The methods for Part B provide test procedures for measuring the following properties of hardboard:

Section Thickness32 Modulus of Rupture33 Tension Strength Parallel to Surface34 Tension Strength Perpendicular to Surface35 Water Absorption and Thickness Swelling36 Moisture Content and Specific Gravity37

1.3 There are accepted basic test procedures for various fundamental properties of materials that may be used without modification for evaluating certain properties of wood-based fiber and particle panel materials. These test methods are included elsewhere in the Annual Book of ASTM Standards. The pertinent ones are listed in Table 1. A few of the test methods referenced are for construction where the wood-base materials often are used.

1.4 The values stated in inch-pound units are to be regarded as the standard. The SI equivalents are approximate in many cases. 1 in. = 25.4 mm, 1 lbf = 4.45 N.

1.5 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.

TABLE 1 Basic Test Procedures for Evaluating Properties of Wood Base-Fiber and Particle Panel Materials

ASTM
DesignationTest Methods for C177Steady-State Heat-Flux Measurements and Thermal Transmission Properties by Means of the Guarded-Hot-Plate Apparatus^A C209Cellulosic Fiber Insulating Board^A C236Steady-State Thermal Performance of Building Assemblies by Means of the Guarded Hot Box^A C384Impedance and Absorption of Acoustical Materials by the Imped-
ance Tube Method^A C423Sound Absorption and Sound Absorption Coefficients by the Re-
verberation Room Method^A D149Dielectric Breakdown Voltage and Dielectric Strength of Solid Elec-
trical Insulating Materials at Commercial Power Frequencies^B D150A-C Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulating Materials^B D257D-C Resistance or Conductance of Insulating Materials^B D495High-Voltage, Low-Current, Dry Arc Resistance of Solid Electrical Insulation^B D1666Conducting Machining Tests of Wood and Wood-Base Materials^C D1761Mechanical Fasteners in Wood^C E72Conducting Strength Tests of Panels for Building Construction^D E84Surface Burning Characteristics of Building Materials^D E90Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions^A E96Water Vapor Transmission of Materials^A E97Directional Reflectance Factor, 45-deg 0-deg, of Opaque Specimens by Broad-Band Filter Reflectometry^E E119Fire Tests of Building Construction and Materials^D E136Behavior of Materials in a Vertical Tube Furnace at 750°C^D E152Fire Tests of Door Assemblies^D E162Surface Flammability of Materials Using a Radiant Heat Energy Source^D E661Performance of Wood and Wood-Based Floor and Roof Sheathing Under Concentrated Static and Impact Loads^D E662Specific Optical Density of Smoke Generated by Solid Materials^D E906Heat and Visible Smoke Release Rates for Materials and Prod-
ucts^D

^A Annual Book of ASTM Standards, Vol 04.06.

^B Annual Book of ASTM Standards, Vol 10.01.

^C Annual Book of ASTM Standards, Vol 04.10.

^D Annual Book of ASTM Standards, Vol 04.07.

^E Annual Book of ASTM Standards, Vol 14.02.