1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 4404-2:2010Petroleum and related products Determination of thecorrosion resistance of fire-resistant hydraulic fluidsPart 2: Non-aqueous fluids (ISO4404-2:2010)Licensed
2、 Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/04/2011 08:16, Uncontrolled Copy, (c) BSIBS EN ISO 4404-2:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO4404-2:2010. It supersedes BS EN ISO 4404-2:2003 which iswithdrawn.The UK participation in its pre
3、paration was entrusted to TechnicalCommittee MCE/18/-/16, Hydraulic fluids.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapp
4、lication. BSI 2011ISBN 978 0 580 71336 1ICS 75.120Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 January 2011.Amendments issued since publicationDate Text affe
5、ctedLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/04/2011 08:16, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4404-2 December 2010 ICS 75.120 Supersedes EN ISO 4404-2:2003English Version Petroleum and related products - Determination of the corrosion
6、 resistance of fire-resistant hydraulic fluids - Part 2: Non-aqueous fluids (ISO 4404-2:2010) Ptrole et produits connexes - Dtermination de la rsistance la corrosion de fluides hydrauliques difficilement inflammables - Partie 2: Fluides non aqueux (ISO 4404-2:2010) Minerallerzeugnisse und verwandte
7、Produkte - Bestimmung der korrosionsverhindernden Eigenschaften von schwer entflammbaren Druckflssigkeiten - Teil 2: Nicht-wssrige Flssigkeiten (ISO 4404-2:2010) This European Standard was approved by CEN on 13 December 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulations
8、which stipulate the 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 CEN-CENELEC Management Centre or to any CEN member. This
9、 European Standard exists in 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 CEN-CENELEC Management Centre has the same status as the official versions. CEN membe
10、rs are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
11、Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membe
12、rs. Ref. No. EN ISO 4404-2:2010: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/04/2011 08:16, Uncontrolled Copy, (c) BSIBS EN ISO 4404-2:2010EN ISO 4404-2:2010 (E) 3 Foreword This document (EN ISO 4404-2:2010) has been prepared by Technical Committee ISO/TC 28 “Petroleum products and lu
13、bricants” in collaboration with Technical Committee CEN/TC 19 “Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin” the secretariat of which is held by NEN. This European Standard shall be given the status of a national standard, either by publicat
14、ion of an identical text or by endorsement, at the latest by June 2011, and conflicting national standards shall be withdrawn at the latest by June 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not
15、 be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 4404-2:2003. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgari
16、a, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice Th
17、e text of ISO 4404-2:2010 has been approved by CEN as a EN ISO 4404-2:2010 without any modification. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/04/2011 08:16, Uncontrolled Copy, (c) BSIBS EN ISO 4404-2:2010ISO 4404-2:2010(E) ISO 2010 All rights reserved iiiForeword ISO (the Internatio
18、nal 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 interested in a subject for which a technical committee has been
19、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 Electrotechnical Commission (IEC) on all matters of electrotechnical standar
20、dization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for v
21、oting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all s
22、uch patent rights. ISO 4404-2 was prepared by Technical Committee ISO/TC 28, Petroleum products and lubricants. This second edition cancels and replaces the first edition (ISO 4404-2:2003), of which it constitutes a minor revision. ISO 4404 consists of the following parts, under the general title Pe
23、troleum and related products Determination of the corrosion resistance of fire-resistant hydraulic fluids: Part 1: Water-containing fluids Part 2: Non-aqueous fluids Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/04/2011 08:16, Uncontrolled Copy, (c) BSIBS EN ISO 4404-2:2010Licensed Copy:
24、 Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/04/2011 08:16, Uncontrolled Copy, (c) BSIBS EN ISO 4404-2:2010INTERNATIONAL STANDARD ISO 4404-2:2010(E) ISO 2010 All rights reserved 1Petroleum and related products Determination of the corrosion resistance of fire-resistant hydraulic fluids Part 2: Non-aq
25、ueous fluids WARNING The use of this part of ISO 4404 may involve hazardous materials, operations and equipment. This part of ISO 4404 does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this part of ISO 4404 to establish appropriat
26、e safety and health practices and determine the applicability of regulatory limitations prior to use. 1 Scope This part of ISO 4404 specifies a procedure for the determination of the corrosion-inhibiting properties of non-aqueous hydraulic fluids within the category HFD, as classified in ISO 6743-4.
27、 It provides a qualitative assessment of corrosion of five of the most common metals used in the construction of hydraulic systems, but other metals and/or alloys could be added or substituted for these metals for particular installations. NOTE The determination of corrosion resistance of aqueous hy
28、draulic fluids within categories HFA, HFB and HFC is described in ISO 4404-1. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the refe
29、renced document (including any amendments) applies. ISO 3170:2004, Petroleum liquids Manual sampling ISO 3819:1985, Laboratory glassware Beakers ISO 5272:1979, Toluene for industrial use Specifications Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/04/2011 08:16, Uncontrolled Copy, (c) BS
30、IBS EN ISO 4404-2:2010ISO 4404-2:2010(E) 2 ISO 2010 All rights reserved3 Principle Test pieces of selected metals are polished, weighed and immersed, separately and in pairs, in the test fluid for 672 h at 35 C. At the end of the test period, the change in mass of the test piece is recorded and the
31、appearance of both the test pieces and test fluid is assessed against arbitrary classification scales. 4 Reagents and materials 4.1 Heptane, commercial grade. 4.2 Toluene, conforming to the requirements of grade 2 of ISO 5272. 4.3 Abrasive cloth or paper, made of silicon carbide, of nominal grit siz
32、es 125 m, 65 m, 37 m and 26 m. NOTE Papers and cloths are often sold against arbitrary grit sizes. The above-mentioned (4.3) represent P 120, P 240, P 400 and P 600, respectively. 4.4 Absorbent cotton (cotton wool). 5 Apparatus 5.1 Beakers, of capacity 400 ml, made of borosilicate glass, generally c
33、onforming to the requirements of ISO 3819, approximately 135 mm in height, without spouts. 5.2 Watch-glasses, of diameter 90 mm to 110 mm, with a hole of approximately 8 mm diameter, drilled centrally (see second paragraph of 5.3). 5.3 Glass hooks, shaped to allow free suspension of the test pieces
34、in the beaker, either directly, or by means of the spacer (5.4), and having a spherical suspension end of diameter 12 mm to 15 mm. The combination of the hole in the watch-glass and/or shim, and the spherical end of the glass hook, should provide an effective closure. 5.4 Spacers and bolts, made of
35、nylon, spacers 15 mm 10 mm 1 mm with two holes of 5 mm in diameter and 8 mm apart, each spacer fitted with a nylon bolt of 4 mm in diameter. Nylon spacer(s) shim(s), with a centrally drilled 8 mm diameter hole, may be needed to adjust the height of the test specimens in the beaker (see item 2 in Fig
36、ure 1). 5.5 Heating bath, consisting of a thermostatically controlled bath or oven of sufficient capacity to accommodate at least 10 beakers, and capable of maintaining a temperature of (35 1) C throughout the test period. The bath shall be equipped with a stirrer, or the oven with a fan, to ensure
37、even temperature distribution in all areas. At least four temperature sensors are required. 5.6 Analytical balance, capable of weighing to the nearest 0,2 mg. 5.7 Forceps, spade-ended or round-ended, either corrosion-resistant metal or plastic, with plain inner faces. 6 Test pieces The test pieces s
38、hall be rectangles of the selected metals, 100 mm in length, 20 mm in width and 1 mm to 2 mm in thickness, with a hole 4 mm to 5 mm in diameter located centrally at one end, approximately 5 mm from the edge. The composition of the five standard metals is given in Table 1. Licensed Copy: Wang Bin, IS
39、O/EXCHANGE CHINA STANDARDS, 15/04/2011 08:16, Uncontrolled Copy, (c) BSIBS EN ISO 4404-2:2010ISO 4404-2:2010(E) ISO 2010 All rights reserved 3Dimensions in millimetres Key 1 watch-glass 2 shim 3 glass hook 4 nylon spacer (15 10 1) 5 nylon bolt and nut, diameter 4 6 pair of test strips 7 beaker witho
40、ut a spout 8 test fluid Figure 1 Illustrative arrangement of test pieces in the beaker Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/04/2011 08:16, Uncontrolled Copy, (c) BSIBS EN ISO 4404-2:2010ISO 4404-2:2010(E) 4 ISO 2010 All rights reserved7 Samples and sampling 7.1 Unless otherwise
41、specified, samples shall be obtained by the procedures described in ISO 3170. 7.2 A minimum laboratory sample size of 3 l is required for this test, and this shall be prepared in a single container at the sampling site. 8 Preparation of test pieces 8.1 Select 13 test pieces (Clause 6): four of zinc,
42、 three each of steel and aluminium, two of copper and one of brass, and polish the edges with a coarse abrasive cloth or paper (4.3) to remove any burr and finish with 26 m cloth or paper. Ensure that the cloth or paper used for one metal does not come into contact with any other metal. 8.2 Polish t
43、he surfaces of each test piece with abrasive cloth or paper in order of fineness, finishing with 26 m cloth or paper. From this point, handle the test pieces only with the forceps (5.7). The selection of the coarser grades of cloth or paper depends on the original surface condition of the test piece
44、 being polished, but it is recommended that at least two coarser grades be used before the final polishing. 8.3 Rub the surfaces of the polished test piece with absorbent cotton (4.4) followed by absorbent cotton soaked in heptane (4.1). Rinse the test piece in heptane and dry in a current of warm d
45、ry air. Prepared test pieces should have a maximum time between preparation and the test procedure. They may be kept after preparation, for up to 30 min immersed in heptane, but care should be taken to ensure that no contact occurs between test pieces of different metals. Table 1 Composition of meta
46、l test pieces Metal Composition %(m/m) Steel C 0,35 to 0,45 Mn 0,50 to 0,80 Si max. 0,10 S max. 0,035 P max. 0,035 Copper Cu min. 99,9 (Electrolytic grade) Brass Cu 65 0,5 Zn 35 0,5 Zinc Zn min. 99,5 Aluminium Al min. 99,5 NOTE For the purposes of this part of ISO 4404, the term “%(m/m)” represents
47、the mass fraction of a material. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/04/2011 08:16, Uncontrolled Copy, (c) BSIBS EN ISO 4404-2:2010ISO 4404-2:2010(E) ISO 2010 All rights reserved 59 Procedure 9.1 Weigh each dry test piece to the nearest 0,2 mg. 9.2 Pour (250 10) ml of test flui
48、d into each of the 10 beakers. 9.3 In five beakers, place one test piece of each metal on the hook (5.3) suspended from the watch-glass (5.2) such that (60 3) mm of the test piece is immersed in the test fluid, and the test piece is a minimum of 3 mm from the bottom of the beaker. Figure 1 gives an
49、illustrative layout of test pieces in the beaker. 9.4 Prepare four pairs of metal test pieces by means of the nylon spacers and bolts (5.4), with the second hole in the spacer used for suspension. Check that the distance between the two test pieces is uniform and not less than 1 mm. The four pairs are steel and zinc, copper and zinc, aluminium and zinc, and steel and aluminium. 9.5 Suspend the pairs of test pieces in the test fluid with the same immersion conditions as the single test pieces.
