1、BS F 153:2006Properties of oil resistant silicone rubber sheet, moulding and extrusions SpecificationICS 49.025.40NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDPublishing and copyright informationThe BSI copyright notice displayed in this document indicates wh
2、en the document was last issued. BSI 2006ISBN 0 580 49384 9The following BSI references relate to the work on this standard:Committee reference ACE/65Draft for comment 05/30130016 DCPublication historyFirst published October 2006Amendments issued since publicationAmd. no. Date Text affectedBS F 153:
3、2006 BSI 2006 iBS F 153:2006ContentsForeword ii1 Scope 12 Normative references 13 Terms and definitions 24 Material 25 Properties 36 Test sheet manufacture 57 Test methods 58 Quality of material 79 Marking, labelling and packaging 7AnnexesAnnex A (normative) Manufacture of test sheet 8Bibliography 9
4、List of tablesTable 1 Tests as moulded material 3Table 2 Tests after exposure to heat ageing 4Table 3 Tests after immersion in fluid Oil No. 1 4Table 4 Tests after immersion in fluid Liquid 101 5Summary of pagesThis document comprises a front cover, an inside front cover, pages i and ii, pages 1 to
5、9 and a back cover.BS F 153:2006ii BSI 2006ForewordPublishing informationThis British Standard was published by BSI and came into effect on 31 October 2006. It was prepared by ACE/65/-/25, Rubbers, elastomers and sealants, under the authority of Technical Committee ACE/65, Inspection and testing req
6、uirements for non-metallic materials. A list of organizations represented on this committee can be obtained on request to its secretary.Information about this documentThis document supersedes DTD 5582A with Amendment No. 1 June 1979 and Amendment No. 2 August 1981, which was declared obsolescent by
7、the Ministry of Defence from 1 April 1999 and DTD 818 Class N, which was declared obsolescent by the Ministry of Defence in 1999.Hazard warningsWARNING. This British Standard calls for the use of substances and/or procedures that can be injurious to health if adequate precautions are not taken. It r
8、efers only to technical suitability and does not absolve the user from legal obligations relating to health and safety at any stage.Use of this documentIt has been assumed in the preparation of this British Standard that the execution of its provisions will be entrusted to appropriately qualified an
9、d experienced people, for whose use it has been produced.Presentational conventionsThe provisions of this standard are presented in roman (i.e. upright) type. Its requirements are expressed in sentences in which the principal auxiliary verb is “shall”.Commentary, explanation and general informative
10、material is presented in smaller italic type, and does not constitute a normative element.Contractual and legal considerationsThis 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
11、cannot confer immunity from legal obligations. BSI 2006 1BS F 153:20061 ScopeThis British Standard specifies requirements for an oil resistant silicone rubber material possessing excellent ozone resistance properties intended for the production of items such as sheet, mouldings and certain extrusion
12、s, for use in fluid sealing applications where low compression set is of prime importance. The material is suitable for contact with heavy mineral and certain diester based oils over the temperature range p65 C to 150 C1).For applications in air the material is suitable over the temperature range p6
13、5 C to 250 C.This material standard is to be used in conjunction with BS EN 3207.NOTE 1 Material and products manufactured from this specification, when used in fluid sealing applications, may be used up to 200 C for short intermittent periods.NOTE 2 Material and products manufactures from this spec
14、ification are not intended for use in contact with petroleum based fuels, light mineral oils or greases derived from them.NOTE 3 Further information on the suitability of silicone rubber for design applications can be found in SBAC Technical Specification No. 97 1.NOTE 4 Marking BS F 153:2006 on or
15、in relation to a product represents a manufacturers declaration of conformity, i.e. a claim by or on behalf of the manufacturer that the product meets the requirements of the standard. The accuracy of the claim is solely the claimants responsibility. Such a declaration is not to be confused with thi
16、rd party certification of conformity.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the reference cited applies. For undated references, the latest edition of the referenced document (including any amendment
17、s) applies.BS 903-A1 (ISO 2781), Physical testing of rubber Part A1: Determination of densityBS 903-A6 (ISO 815), Physical testing of rubber Part A6: Method for determination of compression set at ambient, elevated or low temperaturesBS ISO 1817, Rubber, vulcanized Determination of the effect of liq
18、uidsBS ISO 188 (BS 903-A19), Rubber, vulcanized or thermoplastic Accelerated ageing and heat resistance tests1)Silicone rubber products, when properly stored at room temperature and in the absence of hostile environments, deteriorate very slowly and, for most practical purposes, the storage life may
19、 be considered indefinite. However, the rate of deterioration increases markedly with increase in temperature and the service life of the rubber therefore depends upon the operational temperature. Conversely, the maximum temperature at which the rubber may be used depends upon the useful life requir
20、ed.BS F 153:20062 BSI 2006BS 903-A26 (ISO 48), Physical testing of rubber Part A26: Method for determination of hardness (hardness between 10 IRHD and 100 IRHD)BS 3734-1 (ISO 3302-1), Rubber Tolerances for products Part 1: Dimensional tolerancesBS EN 3207, Rubber compounds Technical specificationBS
21、F 68, Controlled storage of vulcanized rubbers for use in aerospace applicationsBS F 69, Packaging and identification of vulcanized rubber itemsBS ISO 34-1, Rubber, vulcanized or thermoplastic Determination of tear strength Part 1: Trouser, angle and crescent test piecesBS ISO 37, Physical testing o
22、f rubber Part A2: Method for determination of tensile stress Strain propertiesBS ISO 1817, Rubber, vulcanized Determination of the effect of liquids3 Terms and definitionsFor the purposes of this British Standard, the following terms and definitions apply.3.1 polymermaterial formed by joining togeth
23、er many (poly) individual units (mer) of one or more monomers3.2 vulcanizationthermosetting reaction involving the use of heat and pressure, resulting in greatly increased strength and elasticity of rubber-like materials4Material4.1 Material compositionSilicone polymer shall consist of a homogeneous
24、 mix of recognized rubber quality products suitably compounded and cured to meet the requirements of this specification. No reclaimed or ground vulcanized waste shall be used in the mix.4.2 Manufacturing controlSilicone rubber material and products manufactured from this material shall be formulated
25、 and manufactured to issue controlled documentation, which shall form part of the contract between purchaser and manufacturer.Changes to the formulation or manufacturing process shall not be made without due consideration being given that the modified material/product meets all the requirements of t
26、he standard. BSI 2006 3BS F 153:20064.3 Classification and gradesMaterial shall be supplied in four nominal hardness grades: Grade 50; Grade 60; Grade 70; Grade 80.Material or products manufactured to a nominal hardness grades other than those specified shall, with the exception of hardness, meet al
27、l the requirements of this specification specified for the grade embracing the nominal hardness value. Tolerances, if required tighter than those specified within this specification, shall not be tighter than 3.NOTE For example, where a hardness of 65 is specified, the requirements of Grade 60 apply
28、 as the value of 65 lies within the 56 to 65 hardness range of Grade 60.5PropertiesMaterial manufactured in accordance with Annex A shall meet the requirements specified in Tables 1, 2, 3 and 4.The first production batch and every subsequent 10th batch of material shall be fully tested in accordance
29、 with material standard line numbers specified in Tables 1, 2, 3 and 4.All other batches of material shall be tested in accordance with material standard line numbers 1, 3, 11 and 15 of Table 1.Table 1 Tests as moulded materialBS EN 3207 material standard line numberTest Test requirementGrade 50 Gra
30、de 60 Grade 70 Grade 801 a) Hardness, IRHD50+5p460+5p470+5p480+5p423b) Density, Mg/m3Within 0.05 of requirement within controlling documentation.45 Tensile strength, MPa (min.) 4.8 4.8 5.5 5.567 Elongation at break, % (min.) 200 140 100 70891011 Tear strength, N/mm (min.) 10 10 10 1012131415 Compres
31、sion set, % (max.) 15 15 20 20BS F 153:20064 BSI 2006Table 2 Tests after exposure to heat ageingBS EN 3207 material standard line numberTest Test requirementGrade 50 Grade 60 Grade 70 Grade 8012 Tests on standard test pieces unless otherwise specified after accelerated temperature ageing according t
32、o BS ISO 188345 Permissible variation of the properties compared to the initial valueChange in tensile strength, % of original value (max.)p20 p20 p20 p206 Change in elongation at break, % of original value, (max.)p30 p30 p30 p307 Change in hardness, IRHD +5p3+5p3+5p3+5p3Table 3 Tests after immersio
33、n in fluid Oil No. 1BS EN 3207 Material standard line numberTest Test requirementGrade 50 Grade 60 Grade 70 Grade 8012 Tests on standard test pieces unless otherwise specified after immersion in fluids according to BS ISO 18173 Permissible variation of the properties compared to the initial valueCha
34、nge in volume, % (max.)+10 +10 +10 +1045 Change in tensile strength, % of original value (max.)p25 p25 p25 p156 Change in elongation at break, % of original value (max.)p20 p20 p20 p207 Change in hardness, IRHD (max.)p12 p12 p12 p12 BSI 2006 5BS F 153:20066 Test sheet manufactureManufacture sufficie
35、nt test sheets and/or cylindrical buttons in accordance with Annex A for the determinations of properties required in Clause 8.7Test methods7.1 Accelerated ageing Test specimens, when required, shall be subjected to accelerated temperature ageing in accordance with BS ISO 188 for (336 2) h at (200 2
36、) C.7.2 Fluid immersion7.2.1 Oil No. 1Test specimens, when required, shall be subjected to immersion in the fluid in accordance with BS ISO 1817 for (168 2) h at (125 1) C.7.2.2 Liquid 101Test specimens, when required, shall be subjected to immersion in the fluid in accordance with BS ISO 1817 for (
37、168 2) h at (125 1) C.Table 4 Tests after immersion in fluid Liquid 101BS EN 3207 Material standard line numberTest Test requirementGrade 50 Grade 60 Grade 70 Grade 8012 Tests on standard test pieces unless otherwise specified after immersion in fluids according to BS ISO 18173 Permissible variation
38、 of the properties compared to the initial valueChange in volume, % (max.)+30 +30 +25 +2545 Change in tensile strength, % of original value (max.)p25 p25 p25 p256 Change in elongation at break, % of original value (max.)p20 p20 p20 p207 Change in hardness IRHD (max.)p25 p25 p25 p25BS F 153:20066 BSI
39、 20067.3 Determination of hardness7.3.1 As manufactured materialDetermination of hardness shall be conducted in accordance with BS 903-A26, Method N on a specimen extracted from the thicker portion of the test sheet and superimposed upon the thinner section of the same sheet during test. 7.3.2 Befor
40、e and after heat ageingDetermination of the effects of heat ageing on the hardness of the material shall be conducted in accordance with BS 903-A26, Method N by testing two plies of the thinner section of the test sheet superimposed upon each other. Tests shall be carried out prior to and after acce
41、lerated heat ageing.7.4 Determination of densityDetermination of the density of the material shall be conducted in accordance with BS 903-A1, Method A.7.5 Determination of tensile strength and elongation at break7.5.1 As manufactured materialDetermination of the tensile strength and elongation at br
42、eak shall be conducted in accordance with BS ISO 37 using Type 2 dumb-bell specimens extracted from the thinner section of the test sheet.7.5.2 Before and after heat ageingDetermination of the effects of heat ageing on the tensile strength and elongation at break shall be conducted in accordance wit
43、h BS ISO 37 using Type 2 dumb-bell specimens extracted from the thinner section of the test sheet. Tests shall be carried out prior to and after accelerated heat ageing.7.6 Determination of compression setDetermination of compression set shall be conducted in accordance with BS 903-A6 using Type B s
44、pecimens extracted from the thicker section of the test sheet or on moulded cylindrical buttons. The specimens shall be subjected to (150 2) C for 240p2h.7.7 Determination of tear strengthDetermination of tear strength shall be conducted in accordance with BS ISO 34-1, Method C on specimens extracte
45、d from the thinner section of the test sheet.7.8 Determination of volume changeDetermination of the effect of volume change of the material after immersion in fluids shall be conducted in accordance with BS ISO 1817. BSI 2006 7BS F 153:20068 Quality of material8.1 Quality assurance documentationQual
46、ity assurance documentation for each batch of material or manufactured products shall be in accordance with BS EN 3207.8.2 Rubber products8.2.1 ManufactureRubber products shall be manufactured from material conforming to the requirements of this specification.8.2.2 Sampling8.2.2.1 GeneralThe rate of
47、 sampling of products and the method of test shall be agreed between the purchaser and the manufacturer and shall include the following.8.2.2.2 Mechanical propertiesRequirements of tests carried out on test specimens extracted from products shall be agreed between purchaser and manufacturer if not c
48、onforming to the requirements of Tables 1, 2, 3 and 4. The type of test specimen and the method of extraction and preparation shall be agreed between purchaser and manufacturer and documented.8.2.2.3 Physical propertiesProducts shall be smooth and free from surface imperfections, porosity, voids, in
49、clusions, flow marks or inadequate joint of moulding blank and other defects that would impair satisfactory performance.NOTE Items may be specified with shallow cloth marking on one or more surfaces.8.2.2.4 Chemical testsAt a frequency agreed between the purchaser and manufacturer, chemical analysis test may be carried out to show composition conformance to Clause 4 of this specification.8.2.3 Dimensional propertiesDimensions and tolerances of moulded p
