1、BRITISH STANDARD BS EN ISO 14935:1999 Petroleum and related products Determination of wick flame persistence of fire-resistant fluids The European Standard ENISO14935:1998 has the status of a British Standard ICS 75.080BSENISO14935:1999 This British Standard, having been prepared under the direction
2、 of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 January 1999 BSI 05-1999 ISBN 0 580 32032 4 National foreword This British Standard is the English language version of ENISO14935:1998. It is identical with
3、ISO14935:1998. The UK participation in its preparation was entrusted to Technical Committee PTI/13, Petroleum testing and terminology, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretatio
4、n, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact th
5、at CEN and CENELEC standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement international or European publications referred to in this document may be found in the BSI Stan
6、dards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible
7、for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theENISOtitlepage, page2, the ISO title page, page ii, pages1to 6 andaback cover
8、. 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. Amendments issued since publication Amd. No. Date CommentsBSENISO14935:1999 BSI 05-1999 i Contents Page National foreword Inside fr
9、ont cover Foreword 2 Foreword ii Text of ISO 14935 1ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 14935 May 1998 ICS 75.080 Descriptors: See ISO document English version Petroleum and related products Determination of wick flame persistence of fire-resistant fluids (ISO14935:1998)
10、 Ptrole et produits connexes Dtermination de la persistance dune flamme sur une mche trempe dans un fluide difficilement inflammable (ISO14935:1998) This European Standard was approved by CEN on9 April1998. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the
11、 conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in
12、three official versions (English, French, German). A version in any other language made by translation under the responsibility of a 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
13、 Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Cent
14、ral Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO14935:1998 EENISO14935:1998 BSI 05-1999 2 Foreword The text of the International Standard ISO14935:1998 has been prepared
15、by Technical Committee ISO/TC28 “Petroleum products and lubricants” in collaboration with Technical Committee CEN/TC19 “Petroleum products, lubricants and related products”, the secretariat of which is held by NNI. This European Standard shall be given the status of a national standard, either by pu
16、blication of an identical text or by endorsement, at the latest by November1998, and conflicting national standards shall be withdrawn at the latest by November1998. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implem
17、ent this European Standard: Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the UnitedKingdom. Endorsement notice The text of the International Standard ISO14935:1998 was ap
18、proved by CEN as a European Standard without any modification. NOTENormative references to International Standards are listed in Annex ZA (normative). Contents Page Foreword 2 1 Scope 1 2 Normative references 1 3 Definition 1 4 Principle 1 5 Reagents and materials 1 6 Apparatus 1 7 Samples and sampl
19、ing 3 8 Preparation of apparatus 3 9 Procedure 3 10 Calculation 4 11 Expression of results 4 12 Precision 5 13 Test report 5 Annex ZA (normative) Normative references to international publications with their relevant European publications 6 Figure 1 Reservoir 2 Figure 2 Burner 2 Figure 3 Typical tes
20、t rig 4ENISO14935:1998 ii BSI 05-1999 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body
21、 interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotec
22、hnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least75% of the member bodies casting a vote.
23、 International Standard ISO14935 was prepared by Technical Committee ISO/TC 28, Petroleum products and lubricants. Descriptors: Petroleum products, fire-resistant fluids, tests, flammability testing, determination, fire resistant properties.ENISO14935:1998 BSI 05-1999 1 WARNING The use of this Inter
24、national Standard may involve hazardous materials, operations and equipment. This International Standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this International Standard to establish appropriate safety and health prac
25、tices and determine the applicability of regulatory limitations prior to use. 1 Scope This International Standard specifies a method for the assessment of the persistence of a flame applied to the edge of a wick of non-flammable material immersed in fire-resistant fluid. The test relates to the bulk
26、 behaviour of a fluid, which may provide pertinent information for safe transportation and storage. This test does not ascertain the behaviour of a spray of fire-resistant fluid, for which ISO15029 should be used. This International Standard establishes one of two basic measures of fire-resistance,
27、and may be called up in regulations governing their use under the Luxembourg Report 1) . This International Standard does not apply to certain water-containing fluids or emulsions that do not adhere to the test board. 2 Normative references The following standards contain provisions which, through r
28、eference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying
29、the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 3170:1988, Petroleum liquids Manual sampling. ISO 9162:1989, Petroleum products Fuels (class F) Liquefied petroleum gases Specifications. ISO 15029:, P
30、etroleum products and related products Determination of spray ignition characteristics of fire-resistant fluids 2) . 3 Definition For the purposes of this International Standard, the following definition applies. 3.1 flame mean persistence the largest average flame persistence time, in seconds, of f
31、ive flame exposures carried out under the conditions specified in this International Standard, each flame exposure being the average of six determinations 4 Principle A length of non-flammable aluminosilicate board is soaked in the fluid being tested and placed in a reservoir of the fluid with one e
32、dge exposed. A small flame is applied to the exposed edge of the board, and the persistence, in seconds, of the flame after removal of the igniting flame is measured. A total of six determinations is carried out for each of five different periods of flame application. The persistence of these five d
33、ifferent periods of application of the igniting flame are calculated, and the result is the largest of these averages. 5 Reagents and materials 5.1 Propane, of commercial quality conforming to ISO9162. 5.2 Cleaning materials, for cleaning the reservoir, consisting of solvents appropriate to the mate
34、rial being tested. 6 Apparatus 6.1 Reservoir, constructed of suitable metal, approximately200mm in length, 25mm in width and20mm in depth. It shall be fitted with clips or clamping devices to hold the board (6.5) at either end, with a distance between the inner edges of these clips of180mm 2mm. Each
35、 clip or clamp shall have a reference mark at30mm 0,5mm above the inside bottom of the reservoir. Figure 1 illustrates a suitable reservoir. 1) Safety and Health Commission for the Mining and other Extractive Industries, Doc. No.4746/10/91EN (for English version, FR for French version), April1994, R
36、equirements and tests applicable to fire-resistant hydraulic fluids used for power transmissions and control (hydrostatic and hydrokinetic), available from the Commission of the European Communities, Directorate-General V, Unit V.F.4 “Extractive, Iron and Steel Industries”, Btiment Jean Monnet, C4/6
37、5, L-2920 Luxembourg. 2) To be published as a multi-part standard.ENISO14935:1998 2 BSI 05-1999 6.2 Burner, fitted with a nozzle of0,6mm diameter as illustrated in Figure 2. NOTE 1A British Oxygen Company No. 1 welding nozzle is an example of a suitable product available commercially. This informati
38、on is given for the convenience of users of this International Standard and does not constitute an endorsement by ISO of this product. NOTE 2The burner may be fabricated from a length of tube, one end of which is threaded to accommodate the nozzle, and the other end of which is threaded to take the
39、connector on the propane supply tube (6.3). Figure 1 Reservoir Figure 2 BurnerENISO14935:1998 BSI 05-1999 3 6.3 Propane supply tube, made of rigid or flexible gas-tight material, fitted with a swivel connector at the end receiving the burner and a regulating valve connected to the propane supply. NO
40、TE 1An alternative to the swivel connector is a pivot bar and clamp at the bottom of the burner tube (see Figure 3). NOTE 2When propane is supplied from cylinders, the regulating valve will normally consist separately of a pressure regulator and a needle valve to control the flow. Controlled-pressur
41、e reticulated supplies only require the needle valve. 6.4 Test rig, suitable for mounting the reservoir, board and burner in the correct relative positions. A stop shall be provided such that the burner is positively located in the correct setting position for the height of the flame. A means of mov
42、ing the burner along the length of the board shall be provided. The burner, by means of the swivel connector or pivot bar, shall be able to be moved such that the flame is displaced from the surface of the board to a safe position. NOTEA suitable test rig is illustrated in Figure 3. 6.5 Test board,
43、made of non-flammable aluminosilicate material of width25mm 1mm and of thickness2mm 0,2mm. It shall be cut into lengths of195mm 5mm. NOTE 1Isoplan 1100 3)is a suitable material. NOTE 2Test boards with split edges should be discarded as splits may affect results. Suitable methods of producing cleanly
44、 cut test boards are to use a sharp guillotine or a sharp knife in conjunction with a metal ruler. 6.6 Soaking bath, suitable for the preparation of the test boards. A bath of suitable material of length approximately 200mm, of width approximately 30mm and of depth approximately 40mm is required. 6.
45、7 Timing device, electronic or mechanical, reading to0,1s with an accuracy of 0,1% over10min. 7 Samples and sampling 7.1 Unless otherwise specified, samples shall be taken in accordance with the procedures specified in ISO3170. 7.2 Laboratory samples shall be examined for homogeneity and clarity bef
46、ore taking the test portion. Sediment and/or water shall be removed by filtration or decantation, and the presence noted on the test report. 8 Preparation of apparatus 8.1 Each board shall be suspended vertically in still air, and shall be ignited by applying a small flame to the lower edge. The fla
47、me shall be allowed to spread vertically so that the whole of the board is burned free of combustible material. The board shall be allowed to cool for at least 1h before use. NOTEIt is recommended that batches of boards are prepared at the same time, and prepared boards are stored in a covered vesse
48、l. 8.2 The test rig shall be adjusted such that the reservoir is level, the plane of the board is vertical, and the top of the board is horizontal, when the board is positioned with the top of the board in line with the reference marks on the clips or clamps. 8.3 The burner in the igniting position
49、shall be mounted such that the axis of the nozzle is horizontal and level with the top of the board 1,5mm. The horizontal distance between the tip of the nozzle and the top of the board shall be6,5mm 1,5mm along the whole length of the board. The igniting and removal positions of the burner nozzle shall be in a safe position. 8.4 The igniting flame shall be adjusted to a height of25mm 1mm, and shall be checked between each determination and adjusted as necessary. 9 Procedure 9.1 Carry out the tests at ambient laborato
