1、Designation: D1554 10 (Reapproved 2016)Standard Terminology Relating toWood-Base Fiber and Particle Panel Materials1This standard is issued under the fixed designation D1554; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year
2、 of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.INTRODUCTIONThe terms included in this terminology standard are intended to apply to a family of lignocellulosicpanel material
3、s specially manufactured for use industrially as components (core, facing, or panels) offurniture, cabinets, and the like, and in building construction as siding, sheathing, partitions, doorcores and paneling, acoustical treatments, and as structural components there and elsewhere where thecombinati
4、on of thickness, panel size, and properties satisfy a particular need.1. Scope1.1 This terminology standard covers a repository of termsand classifications essential for the business of Subcommit-tee D07.03.1.2 Terms and classifications for inclusion in this terminol-ogy standard when needed for gen
5、eral use in the conduct of thestandards over which Subcommittee D07.03 has jurisdiction.1.3 The terms in this standard pertain to cellulosic boards orpanel products derived from wood and the woody tissue ofsuch plants as bagasse, flax, and straw. They fall into twogeneral groups: (1) those manufactu
6、red from lignocellulosicfibers and fiber bundles where in manufacture the interfeltingof the fibers and a natural bond are characteristics, and (2)those boards manufactured from a wide range in size and shapeof particles ranging from fine elements approaching fibers insize to large flakes which are
7、blended with synthetic resinadhesive and consolidated into boards characterized by theresin bond and usually known as resin-bonded particleboardsor more commonly as particleboards.2. TerminologyGENERAL DEFINITIONSfibrous-felted boardsa felted wood-base panel materialmanufactured of refined or partly
8、 refined lignocellulosicfibers characterized by an integral bond produced by aninterfelting of fibers and in the case of certain densities andcontrol of conditions of manufacture by ligneous bond, andto which other materials may have been added duringmanufacture to improve certain properties.medium-
9、density fiberboard (MDF)a composite panelproduct composed primarily of cellulosic fibers in which theprimary source of physical integrity is provided throughaddition of a bonding system cured under heat and pressure.Additives may be introduced during the manufacturingprocess to improve certain prope
10、rties. MDF density at thetime of manufacturing, is typically between 500 kg m3(31 lb ft3) and 1000 kg m3(62 lb ft3), based on a reportedmoisture content at the time of weight and volume measure-ments.particleboardsa generic term for a composite panel primar-ily composed of cellulosic materials, gene
11、rally in the form ofdiscrete pieces or particles, as distinguished from fibers,bonded together with a bonding system, and that maycontain additives.wood-base fiber and particle panel materialsa genericterm applied to a group of board materials manufacturedfrom wood or other lignocellulosic fibers or
12、 particles towhich binding agents and other materials may be addedduring manufacture to obtain or improve certain properties.Composed of two broad types, fibrous-felted and particle-boards.wood-cement boarda panel material where wood usually inthe form of excelsior is bonded with inorganic cement.CL
13、ASSIFICATION OF FIBROUS-FELTED BOARDScellulosic fiberboarda generic term for a homogeneouspanel made from lignocellulosic fibers (usually wood orcane) characterized by an integral bond produced by inter-felting of the fibers, to which other materials may have beenadded during manufacture to improve
14、certain properties, butwhich has not been consolidated under heat and pressure asa separate stage in manufacture, said board having a densityof less than 31 lb ft3(specific gravity 0.50) but having adensity of more than 10 lb ft3(specific gravity 0.16).1This terminology is under the jurisdiction of
15、ASTM Committee D07 on Woodand is the responsibility of Subcommittee D07.03 on Panel Products.Current edition approved March 1, 2016. Published April 2016. Originallyapproved in 1958. Last previous edition approved in 2010 as D1554 10. DOI:10.1520/D1554-10R16.Copyright ASTM International, 100 Barr Ha
16、rbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1hardboarda generic term for a panel manufactured primar-ily from inter-felted lignocellulosic fibers (usually wood),consolidated under heat and pressure in a hot-press to adensity of 31 lb ft3(specific gravity 0.50) or greater,
17、 and towhich other materials may have been added during manu-facture to improve certain properties.medium-density hardboarda hardboard as previously de-fined with a density between 31 and 50 lb ft3(specific gravitybetween 0.50 and 0.80).high-density hardboarda hardboard as previously definedwith a d
18、ensity greater than 50 lb ft3(specific gravity 0.80).CLASSIFICATION OF PARTICLEBOARDSlow-density particleboarda particleboard as previously de-fined with a density of less than 640 kg m3(40 lb ft3) basedon a reported moisture content at the time of weight andvolume measurements.medium-density partic
19、leboarda particleboard as previ-ously defined with a density between 640 800 kg m3(4050lbft3) based on a reported moisture content at thetime of weight and volume measurements.high-density particleboarda particleboard as previouslydefined with a density greater than 800 kg m3(50 lb ft3)based on a re
20、ported moisture content at the time of weightand volume measurements.NOTE 1It is the industry practice to measure density of particleboardson the basis of moisture content and volume at time of test.TERMS RELATING TO WOOD-BASE FIBER ANDPARTICLE PANEL MATERIALSair-feltingforming of a fibrous-felted b
21、oard from an airsuspension of damp or dry fibers on a batch or continuousforming machine (sometimes referred to as the dry orsemi-dry process).binderan extraneous bonding agent, either organic orinorganic, used to bind particles together to produce aparticle board.chipssmall pieces of wood chopped o
22、ff a block by ax-likecuts as in a chipper of the paper industry, or produced bymechanical hogs, hammermills, etc.curlslong flat flakes manufactured by the cutting action of aknife in such a way that they tend to be in the form of a helix.factory-finished boardsboards with a factory-applied sur-face
23、as, for example, powder or liquid coatings or overlays.These finished boards require no further field finishing.factory-primed boardsboards with a factory-appliedprimer that requires subsequent finishing in the field.fibersthe slender threadlike elements or groups of woodfibers or similar cellulosic
24、 material resulting from chemicalor mechanical defiberization, or both, and sometimes re-ferred to as fiber bundles.flat-platen presseda method of consolidating and hot press-ing a panel product in which the applied pressure isperpendicular to the faces.flakea small wood particle of predetermined th
25、icknessspecifically produced as a primary function of specializedequipment of various types, with the cutting action acrossthe direction of the grain (either radially, tangentially, or atan angle between), the action being such as to produce aparticle of uniform thickness, essentially plane of the f
26、lakes,in over-all character resembling a small piece of veneer.heat-treatingthe process of subjecting a wood-base panelmaterial (usually hardboard) to a special heat treatment afterhot pressing to increase some strength properties and waterresistance.hot-pressingprocess for increasing the density of
27、 a wet-felted or air-felted mat of fibers or particles by pressing thedried, damp, or wet mat between platens of hot-press tocompact and set the structure by simultaneous application ofheat and pressure.particlethe aggregate component of a particle board manu-factured by mechanical means from wood o
28、r other lignocel-lulosic material (comparable to the aggregate in concrete)including all small subdivisions of wood such as chips, curls,flakes, sawdust, shavings, slivers, strands, wood flour, andwood wool. Particle size may be measured by the screenmesh that permits passage of the particles and an
29、other screenupon which they are retained, or by the measured dimen-sions as for flakes and strands.sawdustwood particles resulting from the cutting and break-ing action of saw teeth.shavinga small wood particle of indefinite dimensionsdeveloped incidental to certain woodworking operationsinvolving r
30、otary cutterheads usually turning in the directionof the grain; and because of this cutting action, producing athin chip of varying thickness, usually feathered along atleast one edge and thick at another and usually curled.sizing agentasphalt, rosin, wax, or other additive introducedto the stock fo
31、r a fibrous-felted board, prior to forming, oradded to the blend of particles and resin for a particle board,to increase water resistance.sliversparticles of nearly square or rectangular cross-sectionwith a length parallel to the grain of the wood of at least fourtimes the thickness.stranda wood fla
32、ke having a minimum predeterminedlength-to-width ratio of 2:1.temperingthe manufacturing process of adding to a fiber orparticle panel material a siccative material such as drying oilblends of oxidizing resin which are stabilized by baking orother heating after introduction.wafera wood flake having
33、a predetermined length of at least1316 in. (30 mm).wet-feltingforming of a fibrous-felted board mat from awater suspension of fibers and fiber bundles by means of adeckle box, fourdrinier, or cylinder board machine.wood flourvery fine wood particles generated from woodreduced by a ball or similar mi
34、ll until it resembles wheatD1554 10 (2016)2flour in appearance, and of such a size that the particlesusually will pass through a 40-mesh screen.wood wool (excelsior)long, curly, slender strands of woodused as an aggregate component for some particleboards.TERMS DESCRIBING WOOD-BASE FIBER ANDPARTICLE
35、 PANEL PRODUCTSacoustical boarda low-density, sound absorbing cellulosicfiberboard having a factory-applied finish and a fissured,felted-fiber, slotted or perforated surface pattern provided toreduce sound reflection. Usually supplied for use in the formof tiles.building boarda natural finished mult
36、i-purpose cellulosicfiberboard.extruded particleboarda particleboard manufactured byforcing a mass of particles coated with an extraneous bindingagent through a heated die with the applied pressure parallelto the faces and in the direction of extruding.hardboard underlaymenta service-grade hardboard
37、 madeor machined to close thickness tolerances for use as aleveling course and to provide a smooth surface under floorcovering materials.insulating formboarda specially fabricated cellulosic fiber-board designed for use as a permanent form for certainpoured-in-place roof constructions.insulating roo
38、f decka cellulosic fiberboard product de-signed for use in open-beam ceiling roof construction. Theproduct is composed of multiple layers of structural insulat-ing board laminated together with water-resistant adhesive.intermediate fiberboard sheathinga cellulosic fiberboardsheathing product, approx
39、imately 22 lb ft3, used in frameconstruction under masonry veneer, siding, shingles, andstucco.mat-formed particleboarda particleboard in which thecoated particles are formed first into a mat having substan-tially the same length and width as the finished board beforebeing flat-platen pressed.nail-b
40、ase fiberboard sheathinga specially manufacturedcellulosic fiberboard product, approximately 25 lb ft3, de-signed for use in frame construction to permit the directapplication of certain exterior siding materials such aswood-based or composite shingles.particleboard corestockcommon name given to par
41、ticleboard manufactured for use as a core for overlaying.particleboard panel stockcommon name given to particleboard manufactured primarily for use as panel material, andin which the surfaces may be treated to obtain decorativeeffects.particleboard underlaymentan underlayment grade par-ticleboard ma
42、de or machined to close thickness tolerancesfor use as a leveling course and to provide a smooth surfaceunder floor covering materials.perforated hardboardhardboard with closely spaced fac-tory punched or drilled holes.planed-to-caliper hardboardhardboard that is machined toa close thickness toleran
43、ce.roof insulation boardstructural insulating board fabricatedfor use as above-deck roof insulation.service hardboarda hardboard of about 55 lb ft3(specificgravity 0.88) density intended for use where standardstrength board is not required and better dimensional stabil-ity is desired.screen-back har
44、dboard (S1S)hardboard with a reverseimpression of a screen on the back produced when a damp orwet mat is hot-pressed into a board and dried in the press.sheathingcellulosic fiberboard for use in housing and otherbuilding construction, which may be integrally treated,impregnated or coated to give it
45、additional water resistance.shingle backera specially fabricated sheathing-grade cellu-losic fiberboard used as a backer strip in coursed shingleconstruction.sound-deadening boarda specially manufactured cellulosicfiberboard product for use in building construction in walland floor assemblies to red
46、uce sound transmission.smooth - two - side hardboard (S2S)hardboard producedfrom a dry mat pressed between two smooth hot platens.standard hardboardhardboard substantially as manufac-tured at the end of hot pressing, except for humidification toadjust moisture content, trimming to size, and other su
47、bse-quent machining, and having the properties associated withhardboard meeting specifications for that quality product.tempered hardboarda hardboard subjected to tempering aspreviously defined or specially manufactured with othervariation in usual process so that the resulting product hasspecial pr
48、operties of stiffness, strength, and water-resistanceassociated with boards meeting specifications for that qualityproduct.tempered service hardboardservice hardboard, as previ-ously defined, which has been given a tempering treatmentto improve such properties as stiffness, strength, and waterresist
49、ance.textured boardsboards that are factory produced with anonplaner surface by, for example, molding, embossing,machining, or post-forming or any combination of theseprocesses.3. Keywords3.1 fiber and particle panels; particle board; wood basedD1554 10 (2016)3ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent r
