1、EUROPEAN STANDARD NORME EUROPENNE EN 382-1 :1993 EUROPISCHE NORM February 7993 UOC 674.M:674.815:620.179.111.5 Descriptors: Fibreboard. surface absorption. test method. dry Process English version Fibreboards - Determination of surface absorption - Part 1 :Test method for dry process fibreboards Pme
2、wX de fibm de boi8 - DteniMth de Faserplatten - Bestimmung der labsorption de surface - Partie I : IIcthode Otrfih-Absorption - Teil 1 : Prfverfahren dessai paw pmneu de fibres obtenus par fr fucrplatten nich dem Trockenvertahren pcpcidci= -, . This European Standard was approved by CEN on 1992-12-1
3、5. EN mbcrs are bound to coqly uith the CEN/CMLEC Internal Regulations which stipulate the conditions for giving this Europcan Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards my be obtained an appli
4、cation to the Central Secretariat or to any CEN member. The European Standards exist in three official versions (English, french, Gem). A version in any other language made by translation der the responsibility of a CEN mbcr into its om language and notified to the Central Secretariat has the ran st
5、atus as the official versions. CEN ambers are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingda. CEN European Committee for Standardization . C
6、oaitC Europen de Normalisation Europisches Komitee fur Normung central Secretaria: rue de -,36 8-1050 Brussels 0 1993 Copyright reserved to CEN members Ref. No. EN 362-1:1993 E Page 2 EN 382-1:1993 1 scope . 2 Normative references 3 Prinziple . 4 Apparatus . 5 Test pieces . 6 Procedure . 7 Expressio
7、n of results . 8 Test report . Annex A (intonatlvt) Bibliography Foreword This Euopssn Standard was prepared by Working Group 3 Fikeboards“ (Secretariat: Italy) of Technical Commiaas CEN/TC 112, Wood-bared panels Ssaetariat: Germany). This standard is one of a Series specifying methods of test for d
8、etermining the propertits of fibre-. No exicting Euopsan Standsr is supersadad. This European Standard shall be given the status of a nathal standard. either y publication of an idenhcal text ar by endorsement, at the latest y August 1993. and conflicting national standards shall be withdrawn at the
9、 latest by Dscembv 1994. In accordance with the CENICENELEC Internal Regulations, the fdowing counttiss are bound to implement this European Sta- Austria, Belgium. Denmark. Finland. France, Germany, Greece, Iceland, Ireland. Italy. Luxembourg. Nethdans. Norway. Porhigal. Spain. Sweden. Switzerland.
10、United Kingdom. Page 3 EN 382-1:1993 1 scope This European Standard specifies a method of datamining the turfm aboorption of dry process fibreboards. 2 Nomative rcfennm This European Standard incorporates by dated or undated reference. provisions fror other publicatlons. T&se normative references ar
11、e cited at the appropri8te plues in the text and the publications are listed hereafter. For dated references, subsequent ucndii.nts to oc revisions of any of these publiC8tiOnS apply to this European Standard only when incarporated in it by nenment or revision. For undated references the last editio
12、n of the publication referred to applies. EN 321-1 Wood-based panels Detamination of dimensions of boards Part 1: Deteraination of thickness, width and length Saapling, Cutting and Inspection part 1: Sampling and cutting of test pieces and expression of test results 9) Graduated pipettes Part 2: Pip
13、cttts for uhich IW waiting tim is specified EN 326-1 Wood-based panels 1% 83s-2 LdKK8tOfY gl8Ssri.rt 3 Prinriple lhe surface absorption of dry process fibrehrds is determined by letting 8 drop of toluene run down the surface of a test piece and waturing the length of the rt8in. 4 Apparatus 4.1 suppo
14、rt Support against which the test piees can be leaned at an angle of (60 : SI (figure 1). 4.2 Grauated pipette Class A typa 2 grduitad pipette .ccOrding to IS0 1135-2 with 8 nOiiM1 C8plcity Of 2 il, 8nd 8 rigid f4XtUm to position the pipette. 4.3 Toluem Toluene of analytical grade. ) At prc-t 8t the
15、 draft St.gt CEN ENt382-1 93 3404589 0041904 442 Page 4 EN 382-1:1993 I 0 Test plecn s.l s8mplIng test pieces shall k taken. Supling and cuttlng of tha t.rt piK shall b. cnrled out Kcording to EN 326-1. Fm orth board three e. 1, . .”, r. - 5.2 Dimrtlom lhe dimensions of the test pleces we (3W t 2) m
16、 x (100 t 2) m x mrd thlckimt. fh. 1ong.r dinsions -11 k in th8 dimtion Of t8ndsng. s.3 Conditionlng Th8 t88t pl- th811 k codltiomd to CWiStUtt U In Ul 8t.orp(ian with 8 -8Il -18tiW huidi.* Of (IS 2 0) % 8nd 8 tarip.ratUn Of (20 t 2) .C. mSt8nt Ult IS Cori.id.fd t0 k lW.ch.d iihm th8 mutt8 Of trio r
17、uccassive mlghing aperitllll C8fTl.d out 8t in inteml of 24 hr do not differ by more th8n 0.1 t of the uss of the test piece. Page 5 EN 382-1:1993 6 Procedure 6.1 Positioning Position the test piece on the support at an inclinntion of (60 f SIg, with the sanding direction pointing dammtiids. Positio
18、n the pipette on its fixture 8t (90 f 5) te 8n at a distance of (1 f 0,l) am from the face of the test piece. 6.2 Discharge of the toluene Discharge 1 ml of toluene, having 8 temperature of (20 t 2) OC, from the pipette onto the face of the test piece, within (4 2 1) s. Allow the toluene to run free
19、ly dawn the incline surface of the test piece. For boards with two smooth surfaces, both faces shall be tested. lhe test shall be carried out inside a fume cupboard. 6.3 Measureaent #ature the maximum length of the stain caused by the toluem, along a line parallel to the edges of the test piece, wit
20、h an accuracy of 2 1 aillintre. 7 Expression of results 7.1 For test pia8 Ihe surface .bsofption of a test piece is expressed 8s the length of the stain cawed by the toluene, to the nearest illlimetre. Uhen testing hrds with two iirooth surfaces, the louer of these two v8lues shall be taken. 7.2 For
21、 8 80.d iha surface absorption of a board is the arithmetic me8n of the msults of 811 test pieces t8km from that board, expressed to 1 M. 6 lest report According to EN 326-1. CEN EN*382-1 93 3404589 0043906 215 Page 6 EN 382-1:1993 Anm A (informativo) Bib1 iogmphy EN 316 wood Fibreboards -finition. clr+tffication and symbols , . , .“I- .- ._ ir . .I . I . I . .i L. . . . . 1, . _. 1 . : I , ,
