1、BRITISH STANDARD BS4050-1: 1977 ISO631:1975 Specification for Mosaic parquet panels Part1: General characteristics ISOtitle:Mosaic parquet panelsGeneral characteristics UDC69.025.351.3:674.213BS4050-1:1977 This British Standard, having been prepared under the directionof the Timber StandardsCommitte
2、e, was published under the authority ofthe Executive Board on 31October1977 BSI11-1999 The following BSI reference relates to the work on this standard: Committee reference TIB/18 ISBN 0 580 09854 0 Cooperating organizations The Timber Standards Committee, under whose direction this British Standard
3、 was prepared, consists of representatives from the following Government departments and scientific, professional and industrial organizations: British Plastics Federation British Woodwork Manufacturers Association* Department of the Environment Building Research Establishment, PrincesRisborough Lab
4、oratory Department of the Environment Housing and Construction Fibre Building Board Development Organization Ltd. Forestry Commission Hardwood Flooring Manufacturers Association* Institute of Wood Science Institution of Civil Engineers Institution of Structural Engineers Joinery and Timber Construct
5、ion Association National Sawmilling Association Royal Institute of British Architects Royal Institution of Chartered Surveyors Softwood Agents and Brokers Association Timber Packaging and Pallet Confederation Timber Research Development Association* Timber Trade Federation* The organizations marked
6、with an asterisk in the above list, together with the following, were directly represented on the committee entrusted with the preparation of this British Standard: Contract Flooring Association Incorporated Association of Architects and Surveyors Amendments issued since publication Amd. No. Date of
7、 issue CommentsBS4050-1:1977 BSI 11-1999 i Contents Page Cooperating organizations Inside front cover Foreword ii 1 Scope and field of application 1 2 References 1 3 Manufacture 1 4 Required characteristics 1 5 Designation 2 6 Inspection conditions 2 7 Delivery 3 8 Marking 3 National appendix A Symb
8、ols for wood species 6 Figure 1 Component square and fingers 1 Figure 2 Mosaic parquet panel 1 Table 1 Examples of nominal dimensions of fingers, component squaresandmosaic parquet panels 2 Table 2 Permissible deviations 2 Table 3 Number of panels in a sample 3BS4050-1:1977 ii BSI 11-1999 Foreword T
9、his Part of this British Standard, prepared under the direction of the Timber Standards Committee, is identical with ISO631:1975 “Mosaic parquet panels General characteristics”. ISO631 replaces draft ISO/R756 but does not cover quality requirements and limits of defects; these are to be dealt with i
10、n a separate International Standard covering oak panels. BS4050:1966 “Wood mosaic flooring”, which was based on draft ISO/R756, has been redesignated Part2 “Classification and quality requirements” of BS4050, and has been amended accordingly. Terminology and conventions. The text of the Internationa
11、l Standard has been accepted as suitable for publication, without deviation, as a British Standard. Certain terminology and conventions are used, however, that are not identical with those used in British Standards. Attention is therefore drawn to the following. Where the words “International Standa
12、rd”, relating to this publication, appear, they should be interpreted as “British Standard”. The comma has been used throughout as a decimal marker. In British Standards it is current practice to use a full point (a full stop on the baseline) as the decimal marker. Cross reference. Since the publica
13、tion of ISO631 in 1975, ISO/R2036 has been approved, with a modified title, as ISO2036. There is no equivalent British Standard, although BS881 they are intended to be bonded (or sealed) to a supporting base, either directly, or over an interlayer of adequate material. 1.3 The classification accordi
14、ng to specific characteristics, wood defects and possible exceptions is laid down, for the different species of wood, in the relevant International Standards. 2 References ISO/R2036, Marking of the different species of wood utilized in the manufacture of wood flooring Code of symbols. ISO. . ., Wood
15、 parquet and raw parquet blocks Terms and definitions 1) . 3 Manufacture 3.1 Mosaic parquet panels are made up from wood fingers of the same species or of different species, laid on a single layer and pre-assembled by juxtaposition, either by means of a material temporarily fixed (paper glued on the
16、 face, for example) or of a sufficiently flexible material, permanently fixed. The panels are made up from component squares(seeFigure 1), laid in a chequered pattern(seeFigure 2). Other patterns may also be formed. 3.2 The fingers may be quarter, half-quarter or plain sawn provided that the amount
17、of plain sawn fingers does not exceed30% of each panel. 3.3 Finished fingers shall have the dimensions specified in4.1. The finger edges shall be machine planed; the faces and ends shall be finely sawn. Adjacent faces, edges and ends shall form parallel sharp edges. The ends shall be perpendicular t
18、o the edges within a tolerance of0,4%. The manufacturing faults are limited according to the relevant International Standards for the classification of mosaic parquet panels of different wood species. 4 Required characteristics 4.1 Nominal dimensions of fingers The fingers shall have the following n
19、ominal dimensions: thickness:68 and10mm; the6mm thickness is not suitable for softwood and for the softer grades of hardwood; width:18 to25mm inclusive, with preferred widths of2022,424 and25mm; length:100 to165mm, including preferred lengths of100112120 and125mm. 1) In preparation. Figure 1 Compone
20、nt square and fingers Figure 2 Mosaic parquet panelBS4050-1:1977 2 BSI 11-1999 Table 1 Examples of nominal dimensions of fingers, component squares andmosaicparquetpanels 4.2 Permissible deviations The maximum permissible deviations from the nominal dimensions indicated in4.1 are given inTable 2. Ta
21、ble 2 Permissible deviations A panel, however, is considered to be acceptable if not more than5% of the fingers have dimensions with deviations not exceeding twice the deviations indicated above. 4.3 Moisture 4.3.1 Unless otherwise agreed on the order, or specified in the relevant International Stan
22、dards for classification of mosaic parquet panels of different species of wood, the moisture at delivery from the manufacturing works shall be between8 and13%, on dry mass. 4.3.2 The reference moisture for the dimensions is11% on dry mass. NOTEThis reference moisture is not inconsistent with the moi
23、sture limits laid down above. It is intended only to let the manufacturers provide for the increase or the reduction of panel dimensions during machining operations and depending upon the moisture content of wood at the time of manufacture, so that, for a moisture content of11%, the panel dimensions
24、 shall be within the permitted tolerances. 5 Designation The mosaic parquet panel shall be designated by stating successively: the words “mosaic parquet”; the symbol of the wood species according to ISO/R2036; the nominal dimensions (thickness x width x length, expressed in millimetres); the number
25、of fingers per component square; the grade, in the form of the appropriate symbol appearing in the relative International Standards for the classification of mosaic parquet panels; the number of the International Standard referring to the respective species of wood. Example: Oak mosaic parquet,8mm t
26、hick, the panel having the length of448mm and the width of448mm and5 fingers per component square, of the first grade: Mosaic parquet QUER8 448 448 5 * * * ISO3247 6 Inspection conditions 6.1 Inspection rules The inspection of the characteristics of mosaic parquet panels shall be carried out under t
27、he conditions established below, on panels of a representative sample taken from the batch. 6.2 Batch Unless otherwise agreed, a batch is made up of mosaic parquet panels of the same wood species, dimensions of fingers (thickness, width, length) and grade, presented in a single delivery. Dimensions
28、in millimetres Fingers Component squares Panels Thickness Width Length Thickness Width Length Number of fingers Thickness Width Length Number of component squares 6 20 100 6 100 100 5 6 400 400 16 8 22,4 112 8 112 112 5 8 448 448 16 10 22,4 112 10 112 112 5 10 448 448 16 10 25 125 10 125 125 5 10 50
29、0 500 16 NOTEOn agreement between the interested parties, fingers, component squares and panels having other dimensions may be produced. Values in millimetres Dimensions On a single panel On each component square of the panel On any point of any finger making up the panel Thickness 0,2 0,2 0,2 Width
30、 0,5 0,2 Length 0,5 0,2 0,2 Diagonal a 0,8 a With respect to the nominal theoretical diagonal. +0,1 0,2BS4050-1:1977 BSI 11-1999 3 6.3 Sample A sample is made up of a number of panels taken at random from different parts of the batch; the number of panels in a sample shall be at least that specified
31、 in Table 3. 6.4 Nature of inspections All mosaic parquet panels making up a sample shall be inspected individually in respect of the wood species, the nominal dimensions, the defects and the appearance. The defects permitted for each grade shall be inspected according to the relevant International
32、Standards for the classification of mosaic parquet panels of different species of wood. The moisture content shall be checked according to6.5.1. 6.5 Inspections 6.5.1 Moisture The moisture content shall be checked on a test specimen cut from the middle of a finger taken at random from every third pa
33、nel, but at least on three fingers, each taken from a different panel. Unless otherwise agreed, the moisture content shall be determined with an electrical contact device. In case of disagreement, the gravimetric method shall be binding. 6.5.2 Dimensions All inspections other than those for moisture
34、 content shall be carried out on all panels of the sample. The dimensions shall be checked with measuring instruments capable of recording to the prescribed degree of accuracy. The width and the length shall be checked on the face, parallel and perpendicular to the longitudinal axis of the finger. 6
35、.5.3 Defects and appearance The dimensions of measurable defects shall be measured with adequate measuring instruments. Non-measurable defects and appearance shall be examined with the naked eye. 6.6 Acceptance and rejection If, after checking the characteristics other than the moisture content, the
36、 number of rejected panels in the sample examined does not exceed the number shown in the third column of Table 3 for the size of this sample, the batch shall be regarded as complying with the requirements of this International Standard. In other cases, the batch shall be rejected; a rejected batch
37、may be presented, after reclassification, to a new check. If the moisture content is not according to the specifications of4.3.1, the batch shall be rejected. 7 Delivery 7.1 Packaging Unless otherwise agreed between the parties, mosaic parquet panels shall be put in packages that protect them agains
38、t damage during transport and maintain the prescribed moisture content of the wood under normal transport and storage conditions. 7.2 Moisture content of panels The moisture content of mosaic parquet panels shall comply, at delivery from the manufacturing works, with the specifications laid down in4
39、.3.1. 8 Marking 8.1 Unless otherwise agreed between the parties, the marking of packages of mosaic parquet panels, at delivery from the manufacturing works, is compulsory. Table 3 Number of panels in a sample Size of batch Number of panels initially subjected to inspection (first sample) Number of r
40、ejected panels in the first sample that decides Size of additional batch Number of rejected panels in two samples considered together that decides acceptance of batch rejection of batch additional sampling acceptance of batch rejection of batch 1 2 3 4 5 6 7 8 300 to500 501 to800 801 to1300 1301 to3
41、200 3201 to8000 35 50 75 100 150 2 3 5 6 9 7 10 12 17 24 3 to6 4 to9 6 to11 7 to16 10 to23 70 100 150 200 300 6 9 11 16 23 7 10 12 17 24BS4050-1:1977 4 BSI 11-1999 8.2 The marking shall be carried out legibly by applying a stamp with a water-proof and slightly penetrating product to one of the sides
42、 of each package. The stamp must contain the items given in clause5, except for the words “mosaic parquet”, but adding the number of panels in the package. Example: For a package containing100 oak mosaic parquet panels,8mm thick,448mm long and wide, and5 fingers per component square, of the first gr
43、ade, themarking shall be the following: QUER 8 448 4485 * * * 100 panels ISO3247 8.3 At the purchasers request, the indications of the country of origin and the trade mark may be inscribed in addition to the indications specified in clause5. Example: For a package containing100 oak mosaic parquet pa
44、nels8mm thick,448mm long and wide, and5 fingers per component square, of the first grade, manufactured in Romania, by CEIL, the marking shall be the following: QUER 8 448 4485 * * * 100 panels ISO3247 R CPL5 blankBS4050-1:1977 BSI 11-1999 6 National appendix A Symbols for wood species A.1 Deciduous
45、trees Botanical species Symbol Standard name Acer platanoides L. Acer pseudoplatanus L. Acer saccharum Marsh. Adina microcephala Hiern Afzelia sp. Androstachys johnsonii Prain Autranella congolensis A. Chev. Baikiaea plurijuga Harms Betula sp. Brachylaena hutchinsii Hutch. Burkea africana Hook. Carp
46、inus betulus L. Castanea sativa Mill. Chlorophora eccelsa (Welw.) Benth & Hook f. (C. regia A. Chev.) Cybistax donnel-smithii (J.M. Rose Seibert) Dicorynia guianensis Amsh. (D. paraensis Benth) Dipterocarpus sp. Distemonanthus benthamianus Baill. Entandrophragma angolense (Welw.) C.DC. Entandrophrag
47、ma candollei Harms Entandrophragma cylindricum Sprague Entandrophragma utile (Dawe and Sprague) Sprague Erytrophleum sp. Eucalyptus globulus Labill. Eucalyptus marginata Donn ex Sm Eucalyptus diversicolor F. Muell Fagus orientalis Lipsky Fagus sylvatica L. Fraxinus sp. Gleditsia tricanthos L. Guibou
48、rtia tessmannii (Hanns) J. Leon Juglans nigra L. Juglans regia L. Khaya anthotheca (Welw.) C.DC. Khaya ivorensis A. Chev. Khaya senegalensis (Desr.) A. Juss Lophira alata Banks ex Gaertn.f. Mansonia altissima A. Chev. Millettia laurentii De Wild. Millettia stuhlmannii Taub. Nauclea diderrichii (De W
49、ild. & Th. Dur.) Merr. Newtonia buchananii Gilbert et Boutique Olea capensis L. Pericopsis elata van Meeuwen Piptadeniastrum africanum Pterocarpus angolensis DC. ACEP ACES ACEA ADIM AFZX ANDJ AUTC BAIP BETX BRAH BURA CARB CASS CHLE (CHLR) CYBD DICG (DICP) DIPX DISB ENTA ENTC ENTY ENTU ERYX EUCG EUCM EUCD FAGO FAGS FRAX GLET GUIT JUGN JUGR KHAA KHAI KHAS LOPA MANA MILL MILS NAUD NEWB OLEC PERE PIPA PTEA Norway maple Sycamore Rock maple Afzelia Mecruss Rhodesian teak Bi
