1、BRITISH STANDARD BS EN ISO 4263-2:2003 Incorporating Corrigendum No. 1 Petroleum and related products Determination of the ageing behaviour of inhibited oils and fluids TOST test Part 2: Procedure for category HFC hydraulic fluids The European Standard EN ISO 4263-2:2003 has the status of a British
2、Standard ICS 75.120 BS EN ISO 4263-2:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 14 May 2003 BSI 14 July 2003 ISBN 0 580 41829 4 National foreword This British Standard is the official English language version of EN ISO 4263-2:2003.
3、It is identical with ISO 4263-2:2003. The UK participation in its preparation was entrusted to Technical Committee PTI/13, Petroleum testing and terminology, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-refe
4、rences The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of Britis
5、h Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present
6、to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an insi
7、de front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to 14, the Annex ZA page, and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Co
8、mments 14574 Corrigendum No. 1 14 July 2003 Correction to EN ISO foreword page and addition of Annex ZA pageEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO42632 April2003 ICS75.120 Englishversion PetroleumandrelatedproductsDeterminationoftheageing behaviourofinhibitedoilsandfluidsTOSTtestPart2:
9、 ProcedureforcategoryHFChydraulicfluids(ISO42632:2003) PtroleetproduitsetproduitsconnexesDterminationdu comportementauvieillissementdesfluidesethuiles inhibesEssaiTOSTPartie2:Mthodepourlesfluides hydrauliquesdecatgorieHFC(ISO42632:2003) MinerallprodukteundverwandteErzeugnisse BestimmungdesAlterungsv
10、erhaltensvonwirkstoffhaltigen lenundFlssigkeitenTOSTTestTeil2:Verfahrenfr DruckflssigkeitenderKlasseHFC(ISO42632:2003) ThisEuropeanStandardwasapprovedbyCENon25March2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatus
11、ofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation und
12、ertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Po
13、rtugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.
14、ENISO42632:2003ECORRECTED20030625 Foreword Thisdocument(ENISO42632:2003)hasbeenpreparedbyTechnicalCommitteeISO/TC28 “Petroleumproductsandlubricants“incollaborationwithTechnicalCommitteeCEN/TC19 “Petroleumproducts,lubricantsandrelatedproducts“,thesecretariatofwhichisheldbyNEN. ThisEuropeanStandardsha
15、llbegiventhestatusofanationalstandard,eitherbypublicationof anidenticaltextorbyendorsement,atthelatestbyOctober2003,andconflictingnational standardsshallbewithdrawnatthelatestbyOctober2003. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsof thefollowingcountriesarebound
16、toimplementthisEuropeanStandard:Austria,Belgium,Czech Republic,Denmark,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy, Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,Switzerlandand theUnitedKingdom. Endorsementnotice ThetextofISO42632:2003hasbeenapprovedbyCENasENISO4
17、2632:2003withoutany modifications. NOTENormativereferencestoInternationalStandardsarelistedinAnnexZA(normative). ENISO42632:2003 Reference number ISO 4263-2:2003(E)INTERNATIONAL ADNATSDR ISO 4-3622 tide tsriFino -300251-40 Petroleum and related products Determination of the ageing behaviour of inhib
18、ited oils and fluids TOST test Part 2: Procedure for category HFC hydraulic fluids Ptrole et produits connexes Dtermination du comportement au vieillissement des fluides et huiles inhibes Essai TOST Partie 2: Mthode pour les fluides hydrauliques de catgorie HFC Referecne unbmer OSI 2-3624:002)E(3 OS
19、I 3002INTERNATIONAL STANDARD ISO 4263-2 First edition 2003-04-15 elortePua mr dnedetal orpcudst imreteDntanoi of eht iegagn hebaviruo fo ihnietibslio d naulf disd T OST sett :2 traP decorProf eru cagetory FHh Cyciluard diulfs rtPole rp teoiudst cxennoes retD mniitano c udomropmettne ua viiellsisetne
20、m sed fluised et iuhsel hniibse sEsaT iOTS raPtie :2 Mtdohp eruo les ulfised yhrdauliuqse c edatrogie FHC ENISO42632:2003IS-3624 O2:(3002E) ii ENISO42632:2003IS-3624 O2:(3002E) iiiContents Page Foreword iv 1 Scope 1 2 Normative references . 1 3 Principle . 1 4 Reagents and materials 2 5 Apparatus. 3
21、 6 Sampling 6 7 Preparation of materials and apparatus . 7 8 Procedure. 8 9 Calculation. 9 10 Expression of results 9 11 Test report 9 Annex A (normative) Liquid-in-glass thermometer specifications . 10 Annex B (normative) Procedure for packaging and storage of catalyst coils . 11 Annex C (normative
22、) Method for the determination of the insolubles content of category HFC hydraulic fluids 12 Annex D (normative) Appearance rating of catalyst-coil wires. 13 Bibliography . 14 ENISO42632:2003IS-3624 O2:(3002E) iv Foreword ISO (the International Organization for Standardization) is a worldwide federa
23、tion 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 established has the right to be represented on that committ
24、ee. 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 standardization. International Standards are drafted in accordance
25、 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 voting. Publication as an International Standard requires ap
26、proval 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 such patent rights. ISO 4263-2 was prepared by Technical Com
27、mittee ISO/TC 28, Petroleum products and lubricants. ISO 4263 consists of the following parts, under the general title Petroleum and related products Determination of the ageing behaviour of inhibited oils and fluids TOST test: Part 1: Procedure for mineral oils Part 2: Procedure for category HFC hy
28、draulic fluids Part 3: Anhydrous procedure for synthetic hydraulic fluids Part 4: Procedure for industrial gear oils ENISO42632:2003INTERNATIONAL STANDARD ISO 4263-2:2003(E)1Petroleum and related products Determination of the ageing behaviour of inhibited oils and fluids TOST test Part 2: Procedure
29、for category HFC hydraulic fluids WARNING The use of this part of ISO 4263 may involve hazardous materials, operations and equipment. This part of ISO 4263 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 4263 to
30、 establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 1 Scope This part of ISO 4263 specifies a method for the determination of the ageing behaviour of hydraulic fluids of category HFC as defined in ISO 6743-4 (see 2 in the Bibliog
31、raphy) and specified in ISO 12922 (see 3 in the Bibliography. The ageing is accelerated by the presence of oxygen, water and metal catalysts at elevated temperature, and the degradation of the fluid is followed by changes in pH value and insolubles content. Other parts of ISO 4263 specify similar pr
32、ocedures for the determination of the ageing behaviour of mineral oils and specified categories of fire-resistant fluids used in hydraulic and other applications. NOTE For the purposes of this part of ISO 4263, the term “% (m/m)” is used to represent the mass fraction of a material. 2 Normative refe
33、rences 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 referenced document (including any amendments) applies. ISO 3170: 1) , Petroleum liquids Manual sa
34、mpling ISO 3696:1987, Water for analytical laboratory use Specification and test methods ISO 20843: 2) , Petroleum and related products Determination of pH of fire-resistant fluids within categories HFAE, HFAS and HFC 3 Principle A test portion is reacted, in the absence of light, at 95 C with oxyge
35、n and a steel and copper catalyst coil. Small aliquots of the fluid are withdrawn at regular intervals and the pH value and insolubles content are measured. The test is continued until a pH of 4,0 is reached, an insolubles content of 4,0 % (m/m) is exceeded, or a 200 h duration has elapsed. 1)To be
36、published. (Revision of ISO 3170:1988)2)To be published.ENISO42632:2003IS-3624 O2:(3002E) 2 4 Reagents and materials 4.1 Water, unless otherwise specified, in accordance with the requirements of grade 2 as defined in ISO 3696. Potable water means tap water, unless normal piped supplies are contamina
37、ted with particulate or highly soluble mineral content. 4.2 Heptane (C 7 H 16 ), of minimum purity 99,75 %. 4.3 Acetone (CH 3 COCH 3 ), of general purpose reagent grade (GPR). 4.4 Propan-2-ol (CH 3 CHOHCH 3 ), of general purpose reagent grade (GPR). 4.5 Oxygen, of minimum purity 99,5 %. Supplied thr
38、ough a pressure-regulation system adequate to maintain the specified flow rate throughout the test duration. Supply from an oxygen cylinder should be via a two-stage regulation system and a needle valve to improve the consistency of gas-flow regulation. WARNING Use oxygen only with equipment validat
39、ed for oxygen service. Do not allow oil or grease to come into contact with oxygen and clean and inspect all regulators, gauges and control equipment. Check the oxygen-supply system regularly for leaks. If a leak is suspected, turn off immediately and seek qualified assistance. 4.6 Cleaning solution
40、s 4.6.1 Strong oxidizing acid solution A strong oxidizing acid cleaning solution, such as ammonium persulfate in concentrated sulfuric acid (8 g/l), or other proprietary strongly oxidizing solutions used in accordance with the manufacturers instructions. A 10 % solution of three parts of hydrochlori
41、c acid (1 mol/l) and one part of orthophosphoric acid (concentrated GPR grade) removes iron oxide deposits. 4.6.2 Surfactant cleaning fluid A proprietary strong surfactant cleaning fluid is a preferred alternative to the strong oxidizing cleaning solution whenever the condition of the glassware perm
42、its this. 4.6.3 Laboratory detergent The detergent shall be water soluble. 4.7 Catalyst wires 4.7.1 Low-metalloid steel wire, of diameter 1,60 mm 0,05 mm, made of carbon steel, soft bright annealed and free from rust. 4.7.2 Copper wire, of diameter 1,63 mm 0,05 mm, made of either electrolytic copper
43、 wire of 99,9 % minimum purity or soft copper wire of an equivalent grade. 4.8 Abrasive cloth, made of silicon carbide of 150 m (100-grit) with a cloth backing, or an equivalent grade of abrasive cloth. 4.9 Absorbent cotton ENISO42632:2003IS-3624 O2:(3002E) 35 Apparatus 5.1 Oxidation cell, consistin
44、g of a large test tube of borosilicate glass with a graduation mark at 300 ml 1 ml, which applies to the test tube alone at 20 C. A mushroom condenser and oxygen-delivery tube, also of borosilicate glass, fit into the test tube. The design and dimensions shall be as illustrated in Figure 1. 5.2 Heat
45、ing bath, consisting of a thermostatically controlled bath capable of maintaining the hydraulic fluid test portion in the oxidation cell at 95 C 0,2 C. It shall be large enough to hold the required number of oxidation cells (5.1) immersed in the heat-transfer medium to a depth of 355 mm 10 mm. It sh
46、all be constructed to ensure that light is excluded from the test portions during the test. If a fluid bath is used, it shall be fitted with a suitable stirring system to provide a uniform temperature throughout the bath. If the fluid bath is fitted with a top, the total length of the oxidation cell
47、 within the bath shall be 390 mm 10 mm. If a metal-block bath is used, the heaters shall be distributed so as to produce a uniform temperature throughout the bath, and the holes in the block shall have a minimum diameter of 50 mm and a depth, including any insulating cover, of 390 mm 10 mm. 5.3 Flowmeter, of minimum capacity 3 l/h and an accuracy of 0,1 l/h. 5.4 Temperature-measurement devices 5.4.1 Heating bath. The temperature in liquid heating baths shall be measured by either a liquid-in-glass thermometer meeting the requirements of the specification given in
