BS-EN-ISO-4590-1995.pdf
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1、BRITISH STANDARD BS EN ISO 4590:1995 Cellular plastics Determination of volume percentage of open and closed cells of rigid materials The European Standard EN ISO 4590:1995 has the status of a British Standard Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:06:45 GMT+00:00 2006, Uncontroll
2、ed Copy, (c) BSI BS EN ISO 4590:1995 This British Standard, having been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 July 1995 BSI 12-1999 The following BSI references relate to the
3、work on this standard: Committee reference PRI/24 Draft for comment 94/300608 DC ISBN 0 580 23782 6 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee PRI/24, Testing of rigid and flexible cellular material, upon which the f
4、ollowing bodies were represented: British Plastics Federation British Railways Board British Rigid Urethane Foam Manufacturers Association British Rubber Manufacturers Association Ltd. Department of the Environment (Building Research Establishment) Furniture Industry Research Association Furniture,
5、Timber and Allied Trades Union Ministry of Defence National Bed Federation Limited Phenolic Foam Manufacturers Association RAPRA Technology Ltd. Society of British Aerospace Companies Limited Society of Motor Manufacturers and Traders Limited Amendments issued since publication Amd. No.DateComments
6、Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:06:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 4590:1995 BSI 12-1999i Contents Page Committees responsibleInside front cover National forewordii Foreword2 1Scope and field of application3 2Reference3 3Definitions3 4Principle3 5Tes
7、t specimens3 6Conditioning and testing atmospheres4 7Measurement of surface area S and geometrical volume Vg4 8Determination of impenetrable volume Vi by method 1: Pressure variation (pyknometer)4 9Determination of impenetrable volume Vi by method 2: Volume expansion6 10Correction for surface cells
8、opened by cutting7 11Expression of results7 12Test report8 Annex Notes on procedure9 Annex ZA (normative) Normative references to international publications with their relevant European publications16 Figure 1 Pattern for cutting test specimens10 Figure 2 Location of measurement points10 Figure 3 Sc
9、hematic diagram of apparatus for determination of impenetrable volume Vi by method 111 Figure 4 Schematic diagram of apparatus for determination of impenetrable volume Vi by method 212 Figure 5 Calibration graph for method 2, giving as a function of volume of calibrated standard Vc13 Figure 6 Calibr
10、ation graph for method 1, giving scale reading l1 as a function of atmospheric pressure pamb prevailing at the time of test for tests at a specified pressure reduction pe = 200 mm H2O14 Figure 7 Graph for determining correction factor for cells opened during test specimen preparation15 List of refer
11、encesInside back cover W2W3 W1W3 - - Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:06:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 4590:1995 ii BSI 12-1999 National foreword This British Standard has been prepared by Technical Committee PRI/24, and is the English language vers
12、ion of EN ISO 4590:1995 Cellular plastics Determination of volume percentage of open and closed cells of rigid materials published by the European Committee for Standardization (CEN), which is identical with ISO 4590:1981, published by the International Organization for Standardization (ISO). This B
13、ritish Standard supersedes method 10 of BS 4370-2:1993 which is deleted by amendment. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of it
14、self confer immunity from legal obligations. Cross-reference Publication referred toCorresponding British Standard EN ISO 1923:1995BS EN ISO 1923:1995 Cellular plastics and rubbers Determination of linear dimensions Summary of pages This document comprises a front cover, an inside front cover, pages
15、 i and ii, the EN ISO title page, pages 2 to 16, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, M
16、on Nov 20 02:06:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4590 May 1995 ICS 83.100 Descriptors: Cellular materials, plastics, cellular plastics, tests, physical tests, test equipment English version Cellular plastics Determination of volum
17、e percentage of open and closed cells of rigid materials (ISO 4590:1981) Plastiques alvolaires Dtermination du pourcentage volumique de cellules ouvertes ou fermes des matriaux rigides (ISO 4590:1981) Schaumstoffe Bestimmung des Volumenanteils offener und geschlossener Zellen in harten Schaumstoffen
18、 (ISO 4590:1981) This European Standard was approved by CEN on 1995-05-11. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliog
19、raphical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a
20、 CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Sp
21、ain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1995 Copyright reserved to CEN members Ref. No. EN ISO 4590:1995 E Licensed Copy: sheffieldun
22、 sheffieldun, na, Mon Nov 20 02:06:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 4590:1995 BSI 12-1999 2 Foreword The text of the International Standard from ISO/TC 61, Plastics, of the International Organization for Standardization (ISO) has been taken over as a European Standard by the Tech
23、nical Committee CEN/TC 249, Plastics. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 1995, and conflicting national standards shall be withdrawn at the latest by November 1995. In accord
24、ance with the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom. NOTENorm
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