SAE AMS 3224-2001 Nitrile-Butadiene Rubber Fuel Fire and Ozone Resistant 65 - 75《丁腈橡胶燃料耐火和臭氧特性65-75》.pdf

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1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefro

2、m, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.Copyright 2007 SAE InternationalAll rights reserved. No part of this publication may be

3、reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying,recording, or otherwise, without the prior written permission of SAE.TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada)Tel: 724-776-4970 (outside USA)Fax: 724-

4、776-0790Email: custsvcsae.orgSAE WEB ADDRESS: http:/www.sae.orgNitrile-Butadiene RubberFuel, Fire, and Ozone Resistant65 - 75RATIONALEThis document has been reaffirmed to comply with the SAE 5-year Review policy.1. SCOPE:1.1 Form: This specification covers nitrile-butadiene elastomer in the form of

5、molded sheet and shapes, color coded yellow per ARP1527.1.2 Application: Primarily for parts such as grommets, tube supports, clamp cushions, bushings, gaskets, and seals requiring resistance to aromatic and aliphatic fuels, hydrocarbon-based hydraulic fluids, and diester base lubricating oils, flam

6、e resistant, and ozone resistance, but usage is not limited to such applications. This material is not suitable for use in contact with ketones or phosphate ester-based hydraulic fluids. Each application, however, should be considered individually.1.3 Safety - Hazardous Materials: While the material

7、s, methods, applications, and processes described or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and prope

8、r use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.AEROSPACE MATERIAL SPECIFICATIONAMS 3224Issued FEB 2001 Reaffirmed JUN 2007AMS 3224 SAE AMS 3224- 2 -2. APPLICABLE DOCUMENTS: The issue of the following documents i

9、n effect on the date of the purchase order forms a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is specified. When the referenced document has been canceled and no superseding document has bee

10、n specified, the last published issue of that document shall apply.2.1 SAE Publications: Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.AMS 3020 Oil, Reference, for L Stock Rubber TestingAMS 4943 Titanium Alloy, Hydraulic, Seamless Tubing 3.0Al-2.5V, AnnealedARP1527 Color Codi

11、ng - Elastomers for Tube Clamp Cushions2.2 ASTM Publications: Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.ASTM D 297 Rubber Products - Chemical AnalysisASTM D 395 Rubber Property - Compression SetASTM D 412 Standard Test Methods for Vulcanized Rubber and Thermoplasti

12、c Rubbers and Thermoplastic Elastomers - TensionASTM D 471 Rubber Property - Effect of LiquidsASTM D 518 Rubber Deterioration - Surface CrackingASTM D 573 Rubber- Deterioration in an Air OvenASTM D 624 Standard Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastom

13、ersASTM D 2240 Rubber Property - Durometer Hardness2.3 U.S. Government Publications: Available from DODSSP, Subscription Services Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.MIL-C-85052 Clamp, Loop, Cushion, General Specification forMIL-STD-810 Environmental Test Methods and E

14、ngineering GuidelinesMIL-PRF-5624S Turbine Fuel, Aviation, Grades JP4, JP5 and JP5/JP8 STFederal Aviation Regulations, Part 25 Fire Protection, Section 25.853 Compartment InteriorsAMS 3224 SAE AMS 3224- 3 -3. TECHNICAL REQUIREMENTS: 3.1 Material: Shall be a compound based on a nitrile-butadiene elas

15、tomer, suitably cured to produce a product meeting the requirements of 3.2 and colored yellow in accordance with ARP1527.3.2 Properties: The product shall conform to requirements in Table 1; tests shall be performed on product supplied and in accordance with specified ASTM methods, insofar as practi

16、cable. TABLE 1 - PropertiesProperty Requirement Test Method3.2.1 As Received:3.2.1.1 Hardness, Durometer“A” or equivalent70 5 ASTM D 22403.2.1.2 Tensile Strength, min 13.7 MPa(2000 psi)ASTM D 412, Die B or C3.2.1.3 Elongation, min 500% ASTM D 412, Die B or C3.2.1.4 Tear Resistance, min 52 kN/m (300

17、pounds force/inch)ASTM D 624, Die B3.2.1.5 Specific Gravity Preproduction Value 0.02ASTM D 2973.2.2 Fuel Resistance: ASTM D 471Medium: MIL-PRF-5624S, JP4Temperature: 38.8 C 3(100 F 5.4)Time: 168 hours 0.53.2.2.1 Hardness Change,Durometer “A” or equivalent-20 to 03.2.2.2 Tensile Strength Change, max-

18、30%3.2.2.3 Elongation Change, max -10%3.2.2.4 Tear Resistance, max -35%3.2.2.5 Volume Changein 168 hours+15%AMS 3224 SAE AMS 3224- 4 -3.2.2.6 Volume Changeon drying (after 168 hoursimmersion) at 70 C 2(158 F 3.6) for 24 hours0.5, max +10%3.2.3 Petroleum BasedOil Resistance:ASTM D 471Medium: AMS 3020

19、Temperature: 70 C 3(158 F 5.4)Time: 70 hours 0.53.2.3.1 Hardness Change,Durometer “A” or equivalent-15 to 03.2.3.2 Tensile Strength Change, max-10%3.2.3.3 Elongation Change, max -10%3.2.3.4 Tear Resistance, max -10%3.2.3.5 Volume Changeafter conditioning0 to +10%3.2.3.6 Volume Changeon drying (after

20、 70hours immersion) at20 to 30 C (68 to 86 F)for 24 hours 0.50 to +10%3.2.4 Dry Heat Resistance: ASTM D 573Temperature: 135 C 3(275 F 5.4)Time: 70 hours 0.53.2.4.1 Hardness ChangeDurometer “A” or equivalent0 to +103.2.4.2 Tensile StrengthChange, max-40%3.2.4.3 Elongation Change, max -75%3.2.4.4 Tear

21、 Resistance, max -40%3.2.4.5 Volume Change, max -10%3.2.5 Compression Set: ASTM D 395, Method BTemperature: 100 C 3(212 F 5.4)Time: 70 hours 0.5TABLE 1 - Properties (Continued)Property Requirement Test MethodAMS 3224 SAE AMS 3224- 5 -3.3 Quality: The product, as received by purchaser, shall be unifo

22、rm in quality and condition, smooth, as free from foreign material as commercially practicable, and free of imperfections detrimental to usage of the product. 4. QUALITY ASSURANCE PROVISIONS: 4.1 Responsibility for Inspection: The manufacturer shall supply all samples and shall be responsible for th

23、e performance of all required tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the product conforms to the specified requirements. 4.2 Classification of Tests: 4.2.1 Acceptance Tests: Hardness (3.2.1.1), tensile strength (3.2.1.2),

24、 elongation (3.2.1.3), tear strength (3.2.1.4), and dry heat resistance (3.2.4) are acceptance tests and shall be performed on each lot.4.2.2 Preproduction Tests: All technical requirements are preproduction tests and shall be performed prior to or on the initial shipment of product by the manufactu

25、rer, when any change in ingredients and/or processing requires reapproval as in 4.4.1, and when purchaser deems confirmatory testing to be required.3.2.5.1 Percent of OriginalDeflection, max553.2.6 Thermal Shock: No cracking, surfacetackiness, or degradationMIL-STD-810Method 503.2Low Temperatures:-5

26、4 C 3 (-65 F 5.4)High Temperatures:135 C 3 (275 F 5.4)3.2.7 Flame Resistance:Vertical Burn TestFAR 25.853, Appendix F3.2.7.1 Flame Time, max 15 seconds3.2.7.2 Burn Length, max 1.5 inches3.2.8 Titanium CompatibilityAppearance:No cracking orpittingMIL-C-85052Para 3.5.1.4 and 4.5.3.4AMS 49433.2.9 Ozone

27、 Resistance Appearance: No cracking permitted. MIL-C-85052Para 3.5.3.3 and 4.5.4.3TABLE 1 - Properties (Continued)Property Requirement Test MethodAMS 3224 SAE AMS 3224- 6 -4.3 Sampling and Testing: Shall be as follows:4.3.1 For Acceptance Tests: Sufficient product shall be taken at random from each

28、lot to perform all required tests. The number of determinations for each requirement shall be as specified in the applicable test procedure or, if not specified therein, not less than three.4.3.1.1 A lot shall be all product from the same batch of compound processed in one continuous run and present

29、ed for manufacturers inspection at one time.4.3.1.2 A statistical sampling plan, acceptable to purchaser, may be used in lieu of sampling as in 4.3.1.4.3.2 For Preproduction Tests: Acceptable to purchaser or as stated in the contract.4.4 Approval: 4.4.1 Sample product shall be approved by purchaser

30、before product for production is supplied, unless such approval be waived by purchaser. Results of tests on production product shall be essentially equivalent to those on the approved sample. Production product made by a revised procedure shall not be shipped prior to receipt of reapproval. If neces

31、sary to make any change in ingredients, in type of equipment for processing, or in manufacturing procedures, manufacturer shall submit for reapproval a statement of the proposed changes in ingredients and/or processing and, when requested, sample product. 4.4.2 Manufacturer shall use ingredients, ma

32、nufacturing procedures, processes, and methods of inspection on production product which are essentially the same as those used on the approved sample. 4.5 Reports: The supplier of the product shall furnish with each shipment a report from the manufacturer showing the results of tests to determine c

33、onformance to the acceptance test requirements and stating that the product conforms to the other technical requirements. This report shall include the purchase order number, lot number, AMS 3224, manufacturers identification number, part number, and quantity.4.6 Resampling and Retesting: If any spe

34、cimen used in the above tests fails to meet the specified requirements, disposition of the product may be based on the results of testing three additional specimens for each original nonconforming specimen. Failure of any retest specimen to meet the specified requirements shall be cause for rejectio

35、n of the product represented. Results of all tests shall be reported. AMS 3224 SAE AMS 3224- 7 -5. PREPARATION FOR DELIVERY: 5.1 Packaging and Identification: 5.1.1 A lot of product may be packaged in small quantities and delivered under the basic lot approval provided lot identification is maintain

36、ed.5.1.2 Each package shall be permanently and legibly marked with not less than the following information:NITRILE-BUTADIENE RUBBERAMS 3224PURCHASE ORDER NUMBERMANUFACTURERS IDENTIFICATIONLOT NUMBERQUANTITYDATE OF SHIPMENT6. ACKNOWLEDGMENT: Supplier shall mention this specification number in all quo

37、tations and when acknowledging purchase orders.7. REJECTIONS: Product not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection.8. NOTES:8.1 Purchase documents should specify not less than the following:AMS 3224Form and size or part number of product desiredQuantity of product desiredSpecial packaging, if required.8.2 Product meeting the requirements of this specification has been classified under Federal Supply Classification (FSC) 8305. PREPARED UNDER THE JURISDICTION OF AMS COMMITTEE “CE”