EN 324-2-1993 pdf download

07-20-2021 comment

EN 324-2-1993 pdf download.Wood-based panels – Determination of dimensions of boards – Part 2:DetermInation of squareness and edge straightness.
This EN 324-2 specifies .ethOds for aeasuring the squarer4ss nd .d straightness of wGod-bad
panels.
It applies to wo1e flat boards.
The aethods for the detereination of thickness, width and length ar. specified in EN 324-1.
2 Nortive ref ei1ences
This European Standard incorporates by dated or undatd reference, provisions I roe other publications. These norat4v references are cited at the appropriat, places in the text and the publications are listed her after, For dated references, subsequent i.nte to or revisions of any of these p& ications apply to thu European Standard, only then Incorporated In it by ench.nt or revision. For undated references the. latest edition of the publication referred to applies.
EN 322 od-bssed panels – O.t.r.Ination of aolstur. Content
EN fl61 bod-bes.d panel. – SlIng, cutting and inspection
Pert It SlIng and cutting of test pI.ves and er*ss4on of test results ‘)
3 PrInciple
SqUareness and edg straightness of full size boards is deterelnd by .eesurnt of deviation froea ech.nical square or straight edge.
4 Sling
$aapling of panels shill be in accordance with EN 326-1.
5 ista. cont.t at ti of a’a.int
: I4or.11y bord ire wired in thi as-rcIved stat..
If n.c.swy th .o4stre contnt of the bo.rds shill be d.ter.ined in danc With (11 322.
• Conditioning
If i’eired the bOds Shell be CoflditlOfl.d tO COlteflt SeSS lfl fl atosPhe* With C tClItiva I1diW of (U t I) * enda t.r.tur. of (20 2 2) C. Ctant ss is considered to be ra.chid .dien the results of bie suecessive w.ih4ng operations, carriad out at an interval of 24 h do rt differ by eare than 0.1 of the aes of the board.
1) At present at the draft stage
7 Apparatus
7.euriflQ ifllWflt for 1.ngth an width ssaursent
.essurflg tap. gradusted to at mast I
7.2 M.ch.niCKl square
A sechanical squar. having two sr.t of 1000 — t I — for ,.esurin the deviitiO’ of the angles of djscent sides of a board rv. • right .ngle. It shall be eccurate to 0.2 in lOOt] (se figure 1).
r.i $tratt*4g
A atraightadge of length at 1.ast qusl to the length of the board, or wir. of constant crosz-section and flexible enough to he stretched to asw linearity.
1.4 Steel rule. wedg. or caliper for dwitioa .eearants A steel rule w.d or caliper graduated to at least 05 .
• Proc.we
11 Oetar.iiwtiee, of squareness of bacda
•.i.i Place one aid. of the square against one aid. of the board the squareness of which IS to b easured see figure 2.
1.1.3 Follow the Same procedure for each of the other eorner.
8.2 D.t.r.inetion of edge straightness of bords
6.2.1 piece the straight edge against a board edge, or locate the wire it th. corner, of the board and stretch It.
6.2.2 hsesr. the ar9.s% viatioe heti..sen the straight edge (or wire) and th edg. of the board t&ng on. of the .surlng devices speCified In 7.4 and reed the result to 0,5 me.
8.2.3 Follow the proc.duriefor eaCh of the other .dges.
S £qwessloc of results – – •
1.1 Squareness of boards
The result is the lrgese measured valu, of the deviation of thesfd.of the sra and the board dge. It
is expressed In — over I a board edge-length me/i) to 0.5 ‘/m
1.2 $traightMu of board .dges
The raslt. expressed separately for width aii length, i /*, Is th. larger value of the measured deviations divided by the length of th. appropriat, edge.
10 Test report
As described in EN 321-1.EN 324-2-1993 pdf download.

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