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1、INTERNATIONAL STANDARD NORME INTERNATIONALE IS0 2395 Second edition Deuxihme Edition 1990-12-01 Test sieves and test sieving - Vocabulary Tamis et tamisage de contrale - Vocabulaire Reference number Num6ro de rhfhrence IS0 2395 : 1990 (E/F) Copyright International Organization for Standardization Pr
2、ovided by IHS under license with ISO Licensee=Defense Supply Ctr/9960866100 Not for Resale, 04/24/2007 10:23:44 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 2395 : 1990 (E/F) Contents Foreword. iii 1 Scope 2 Normative references . 3 Definitions 3.1 Material to be sie
3、ved 3.2 Testsieves 3.3 Test sieving. . 3.4 Expression of results Alphabetical indexes English French Sommaire Avant-propos . 1 Domaine dapplication 2 R6fkences normatives 3 Dbfinitions 3.1 Mati Bprouvette: Cchantillon utili cover: Device which fits snugly over a sieve to prevent the escape of materi
4、al to be sieved. 3.2.10 receiver; pan: Device which fits snugly beneath a sieve to receive the whole of the passing fraction. 3.2.11 frame: Device which supports the sieving medium at its perimeter and limits the spread of material to be sieved. 3.2.12 sieving medium: A surface containing regularly
5、arranged apertures of uniform shape and size. 3.2.13 woven wire cloth: Sieving medium, produced by a wire weaving process. The wires form square apertures of uniform size. 3.2.14 perforated plate: Sieving medium consisting of a plate with uniform holes in a regular arrangement. The holes may be roun
6、d or square. 3.2.15 electroformed sheet: Sieving medium made of metal sheet with round or square apertures, produced by electrochemical methods. 3.2.16 aperture size: Dimension defining an opening in a sieving medium. 3.2.17 pitch (I) For woven wire cloth, the distance between the axes of two adjace
7、nt wires in the weft or the warp. (2) For perforated plate and electroformed sheet, the distance between corresponding points of two adjacent holes. 3.2.7 profondeur du tamis, HI: Distance entre le bord superieur du tamis et le fond du tamis koir figure I). 3.2.8 hauteur du tamis, Hz: Distance entre
8、 les bords superieurs et inferieurs du tamis (voir figure 1). 3.2.9 couvercle: Accessoire ajuste B la partie superieure dun tamis pour eviter les pertes de mat cerce: Cadre servant B la fixation du fond de tamis a son pour-tour et B contenir la matiere B tamiser. 3.2.12 fond de tamis: Surface pourvu
9、e douvertures, de forme et de dimensions identiques, disposees dune fapon reguliere. 3.2.13 tissu metallique: Fond de tamis, produit par tissage. Les fils forment des ouvertures car shoot: All wires running crosswise of the cloth as woven. 3.2.22 trame: Ensemble des fils perpendiculaires 8 la chaine
10、. 3.2.23 plain weave: Type of weave in which every warp wire crosses alternately above and below every weft wire and vice versa (see figure 2). 3.2.23 armure ccunix Mode dentrecroisement dans lequel chaque fil de chaine passe alternativement au-dessus et au- dessous de chaque fil de trame et recipro
11、quement (voir figure 2). Figure 2 - Plain weave Figure 2 - Armure ccunin 3.2.24 twilled weave: Type of weave in which every warp wire crosses alternately above and below two weft wires and vice versa (see figure 3). 3.2.24 armure cccroisrb: Mode dentrecroisement dans lequel chaque fil de charne pass
12、e alternativement au-dessus et au- dessous de deux fils de trame et reciproquement (voir figure 31. Figure 3 - Twilled weave Figure 3 - Armure cccroise) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Defense Supply Ctr/9960866100 Not for Resa
13、le, 04/24/2007 10:23:44 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 2395 : 1990 (E/F) 3.2.25 plate thickness: Thickness of a plate before perforation. 3.2.25 Bpaisseur de la t8le: Epaisseur de la tale avant perforation. 3.2.26 bridge width; bar: Distance between the
14、 nearest edges of two adjacent holes in a perforated plate or an electroformed sheet. 3.2.26 barrette: Distance entre les bords les plus proches de deux trous voisins, dans une t8le perforce ou une feuille BlectroformBe. 3.2.27 margin: A non-perforated strip at the edge of a perforated plate or an e
15、lectroformed sheet. NOTE - The width of the margin is measured between the edge of the plate or sheet and the line of the outermost points of the row of holes next to this edge. 3.227 bordure pleine: Bande non petforbe sit coinGage: Obturation des ouvertures dun tamis par des particules qui sy coinc
16、ent. 5 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Defense Supply Ctr/9960866100 Not for Resale, 04/24/2007 10:23:44 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 2396 : 1990 (E/F) 3.3.11 blinding; clogging:
17、 The condition where very fine particles adhere to a screening surface and reduce the apertures or close them completely. 3.3.12 size fraction: The interval between two quoted limiting sizes of the material with particle sizes between those limits. 3.4 Expression of results 3.4.1 particle size; siev
18、e size of a particle: Smallest aper- ture size through which a particle will pass if presented in the most favourable attitude. 3.4.2 near-size particle: Particle of size approximately equal to the aperture size of the sieve. 3.4.3 undersize: fines: That portion of the charge which has passed throug
19、h the apertures of a stated sieve. 3.4.4 oversize; residue: That portion of the charge which has not passed through the apertures of a stated sieve. 3.4.5 size distribution curve: Graphical representation of the results of a particle size analysis. 3.4.6 cumulative oversize distribution curve: Curve
20、 obtained by plotting the total (cumulative) percentage by mass retained on each of a set of sieves against the corresponding aperture size. 3.4.7 cumulative undersize distribution curve: Curve obtained by plotting the total (cumulative) percentage by mass passing each of a set of sieves against the
21、 corresponding aperture size. 3.3.11 colmatage: Situation dans laquelle les particules t passant: Partie de la charge passee a travers un tamis donne. 3.4.4 refus: Partie de la charge retenue sur un tamis. 3.4.5 courbe de distribution granulom1.7 monture . . . . , . . . . , . . . . ,. , . . . . . ,.
22、 .3.2.11 UDC/CDU 621.926 : 001.4 Descriptors : sieves, sieving, sieve analysis, vocabulary./Descripteurs : tamis, tamisage, analyse au temis, vocabulaire. Price based on 8 pages/Prix base sur 8 pages 6 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Defense Supply Ctr/9960866100 Not for Resale, 04/24/2007 10:23:44 MDTNo reproduction or networking permitted without license from IHS -,-,-